Sudoku Extreme: Easy Hard Math
Classic Number Puzzle Killer
Free · In-App Purchases · Designed for iPad. Not verified for macOS.
Sudoku Extreme is a beautiful way to experience classic Sudoku puzzles for both beginners & advanced players! It's a great way to keep your mind active while relaxing to pass time. Each puzzle has only one solution. The puzzle comes with a few cells pre-filled. Your job is to fill the remaining empty cells. Fill the empty cells with numbers 1-9 in a way that each row, column and block (3x3 cells) only contains a single instance of the number 1-9.
- No ads. No subscriptions. All features are free.
- Over 100,000 puzzles in 6 different levels: beginner, easy, medium, hard, unfair and extreme.
- It is highly customizable with many beautiful themes as well as settings to customize the app exactly the way you like it. App comes with both light and dark amoled themes to be comfortable on your eyes!
- The simple to use notes and hint features help you if you get stuck but I encourage spending time trying to figure out the puzzles without using hints. Cells filled with use of hints don't get any points.
- Haptic feature gives a positive vibration when correct and negative vibration when wrong answer is filled. This can be disabled in settings.
- If you make a mistake you can use the undo, delete and redo buttons. Note that each mistake deducts points from your overall score.
- Long press the undo button to restart the game
- After a game is finished, you get your overall stats like total time spent, best time, average time, overall score, hints used, mistakes made etc. Sudoku Extreme also comes with a graph of how your scores progress over time. As you play more difficult levels, you get more score. Each higher level gives twice the number of points as the previous level.
- Game can be paused and you can resume the previous game when you come back.
- Sudoku Extreme can automatically pre-fill the notes and auto-remove them when they are used in a row, column or block. Though I encourage disabling this setting and filling it manually as it makes your brain more active! Manually filling notes also gets you extra points!
- The quick fill feature lets you tap-and-hold a number and then simply tap cells and it will fill it with that number.
- Numbers show how many instances of that number are left to be filled in the puzzle. When a number has been used 9 times correctly, it hides itself. You can disable this setting if you like.
- You can swipe up/down to enter notes numbers quickly without having to enter edit/note mode (setting needs to be switched on)
- There is a setting to allow up to 3 mistakes without being penalized in your score.
- "Export Scores" from the app. This can be used in Excel.
As a solo indie developer, there are ongoing costs of developing and maintaining the game. I don't use intrusive ads, trackers, subscriptions, or other nonsense that get in the way of playing. I provide all levels and customizations for free, hoping that players who enjoy the game will consider supporting it. So I'm asking, humbly: if my game brings you a moment of fun, please consider making a one-time purchase to help me keep it ad-free. No subscription. Just one small way to say thanks. It's a small and fair amount which helps cover development costs of future updates. You can also leave me a positive rating on the app store as that helps get the word out to others!
Thank you for supporting me. Hope you are enjoying the puzzles :)
Send me feedback at:
pran@pranapps.com
more - As requested by a user, added two new settings which are OFF by default: "Different color for selected Row, Column, Block" and "Highlight entire cell of note containing selected number"
As a solo indie developer, there are ongoing costs of developing and maintaining the game. I don't use intrusive ads, trackers, subscriptions, or other nonsense that get in the way of playing. I provide all levels and customizations for free, hoping that players who enjoy the game will consider supporting it. So I'm asking, humbly: if my game has brought you a moment of fun, please consider making a one-time purchase to help me keep it ad-free. No subscription. Just one small way to say thanks. It's a small and fair amount which helps cover development costs of future updates. You can also leave me a positive rating on the app store as that helps get the word out to others!
Thank you for supporting me. Hope you are enjoying the puzzles :)
Send me feedback at:
pran@pranapps.com
15 6 hr ago
- As requested by a few users, added a new setting "Show focus brackets around selected cell". This will show 4 focus brackets at the corners of the selected cell. This assists in easily finding which cell is currently selected and in focus. By default, this is on.
- Note that now you can try all difficulty levels and change settings & themes for free. I am a small indie developer and need your help keep the lights on. I offer a beautiful app free of ads, subscriptions, trackers and analytics for the absolute best experience for my users. I am even giving away all features for free to try. If you are enjoying the puzzles, please support me by purchasing the one-time-only in-app-purchase. It's a small and fair amount which helps me pay for development costs of future updates. You can also leave me a positive rating on the app store as that helps get the word out to others!
Thank you for supporting me. Hope you are enjoying the puzzles :)
Send me feedback at:
pran@pranapps.com
14 6 days ago
- Fixed a bug where the "Start in note mode" setting was not obeyed when Restarting a game.
- Note that many users emailed me about correct single answer cells being suddenly highlighted as yellow. This was due to the adding of a new setting to highlight cells with only single numbers with different colour. While I have turned this setting off now by default, some users may need to manually turn this off if their app was updated in a prior update. Sorry about this inconvenience.
- Note that now you can try all difficulty levels and change settings & themes for free.
I am a small indie developer and need your help keep the lights on. I offer a beautiful app free of ads, subscriptions, trackers and analytics for the absolute best experience for my users. I am even giving away all features for free to try. If you are enjoying the puzzles, please support me by purchasing the one-time-only in-app-purchase. It's a small and fair amount which helps me pay for development costs of future updates. You can also leave me a positive rating on the app store as that helps get the word out to others!
Thank you for supporting me. Hope you are enjoying the puzzles :)
Send me feedback at:
pran@pranapps.com
12 22 Jul
Thank you for supporting me. Hope you are enjoying the puzzles :) This update includes some highly requested features based upon your feedback:
- Now you can try all difficulty levels and change settings & themes for free. While all features are free, I hope you support my development costs with the one-time-only in-app-purchase.
- Added a new setting to highlight cells with only single numbers with different colour. Turned this setting off by default.
- Fixed a bug where the new showing mistakes setting wasn't working if allowing up to 3 mistakes setting was off.
- Fixed a bug where disabling show score setting wasn't working.
- Added a new setting to allow up to 3 mistakes without being penalized in your score. Showing mistakes can also be disabled with a new setting.
- Now you can swipe left on a difficulty level to reset scores.
- Fixed a bug where app would report incorrect when long pressing to enter number.
- Updated to latest iOS SDK and liquid glass.
I am a small indie developer and need your help keep the lights on. I offer a beautiful app free of ads, subscriptions, trackers and analytics for the absolute best experience for my users. If you are enjoying the puzzles, please support me by purchasing the one-time-only in-app-purchase. This supports development of future updates. You can also leave me a positive rating on the app store as that helps get the word out to others!
Send me feedback at:
pran@pranapps.com
11 19 Jul
Thank you for supporting me. This update includes some highly requested features based upon your feedback:
- Now you can try all difficulty levels and change settings & themes for free. While all features are free, I hope you support my development costs with the one-time-only in-app-purchase.
- Fixed a bug where disabling show score setting wasn't working.
- Added a new setting to highlight cells with only single numbers with different color.
- Added a new setting to allow up to 3 mistakes without being penalized in your score. Showing mistakes can also be disabled with a new setting.
- Now you can swipe left on a difficulty level to reset scores.
- Fixed a bug where app would report incorrect when long pressing to enter number.
- Updated to latest iOS SDK and liquid glass.
I am a small indie developer and need your help keep the lights on. I offer a beautiful app free of ads, subscriptions, trackers and analytics for the absolute best experience for my users. If you are enjoying the puzzles, please support me by purchasing the one-time-only in-app-purchase. This supports development of future updates. You can also leave me a positive rating on the app store as that helps get the word out to others! Hope you enjoy the puzzles!
Send me feedback at:
pran@pranapps.com
10 19 Jul
Thank you for supporting me. This update includes some highly requested features based upon your feedback:
- Now you can try all difficulty levels and change settings & themes for free. While all features are free, I hope you support my development costs with the one-time-only in-app-purchase.
- Added a new setting to highlight cells with only single numbers with different color.
- Added a new setting to allow up to 3 mistakes without being penalized in your score.
- Now you can swipe left on a difficulty level to reset scores.
- Fixed a bug where app would report incorrect when long pressing to enter number.
- Updated to latest iOS SDK and liquid glass.
I am a small indie developer and need your help keep the lights on. I offer a beautiful app free of ads, subscriptions, trackers and analytics for the absolute best experience for my users. If you are enjoying the puzzles, please support me by purchasing the one-time-only in-app-purchase. This supports development of future updates. You can also leave me a positive rating on the app store as that helps get the word out to others! Hope you enjoy the puzzles!
Send me feedback at:
pran@pranapps.com
9 17 Jul
- Added 3 new settings: "Use larger fonts for notes", "Use bold font for number", "Use bold font for notes"
- Based on user feedback, optimized the beginner and easy level puzzles to be "easier".
- Fixed a bug where the text would be invisible and you would get a blank screen.
I value data privacy and therefore offer a beautiful app free of ads, subscriptions, trackers and analytics for the absolute best experience for my users. If you are enjoying the puzzles, please leave me a positive rating on the app store as that helps get the word out to others. You can also purchase the one time only small in app purchase to help support development and future updates!
Hope you enjoy the puzzles!
If you have any bug, feedback or feature requests, please email Pran at:
pran@pranapps.com
7.0 12/01/2023
- Based on user feedback, optimized the beginner and easy level puzzles to be "easier".
- Fixed a bug where the text would be invisible and you would get a blank screen.
I value data privacy and therefore offer a beautiful app free of ads, subscriptions, trackers and analytics for the absolute best experience for my users. If you are enjoying the puzzles, please leave me a positive rating on the app store as that helps get the word out to others. You can also purchase the one time only small in app purchase to help support development and future updates!
Hope you enjoy the puzzles!
If you have any bug, feedback or feature requests, please email Pran at:
pran@pranapps.com
6.0 28/11/2022
- Fixed a bug where the text would be invisible and you would get a blank screen.
I offer a beautiful app free of ads, subscriptions, trackers and analytics for the absolute best experience for my users. If you are enjoying the puzzles, please leave me a positive rating on the app store as that helps get the word out to others! You can also purchase the one time only small in app purchase to help support development and future updates!
Hope you enjoy the puzzles!
If you have any bug, feedback or feature requests, please email Pran at:
pran@pranapps.com
5.8 21/07/2022
- Fixed a bug where long press to fill the last empty cell wasn't working.
I offer a beautiful app free of ads, subscriptions, trackers and analytics for the absolute best experience for my users. If you are enjoying the puzzles, please leave me a positive rating on the app store as that helps get the word out to others! You can also purchase the one time only small in app purchase to help support development and future updates!
Hope you enjoy the puzzles!
If you have any bug, feedback or feature requests, please email Pran at:
pran@pranapps.com
--------------
Previous:
- Fixed a potential crash bug when launching a new game. If it persists, please email me.
- Fixed a bug where long pressing a cell with single note won't fill it if the note is incorrect solution.
- Fixed a bug where long pressing a cell won't work if a number is locked.
- Added two new themes - Chartreuse (on black background) and Blue (with white background)
- Added a blood orange theme.
- Added a new setting "Number-lock default mode" which locks a number by simply tapping it without having to long press. With the new locked mode on, you can tap the locked number again and that will unlock it. This is useful for those who prefer locking the number and then filling multiple cells as their preferred way of entry. This setting is OFF by default.
- Added a new setting "Start in note mode" which makes note mode on when a game starts. This setting is OFF by default.
- Added 2 new themes - Red on black and Pink on black.
- Fixed a bug where "when you lock a number, the numbers and notes are individually highlighted, but if you then enter note mode and tap a cell, you lost all of the individually highlighted notes." Entering note mode with locked number and then tapping a cell should no longer lose the highlights.
5.7 16/05/2021
- Fixed a potential crash bug when launching a new game. If it persists, please email me.
I offer a beautiful app free of ads, subscriptions, trackers and analytics for the absolute best experience for my users. If you are enjoying the puzzles, please leave me a positive rating on the app store as that helps get the word out to others! You can also purchase the one time only small in app purchase to help support development and future updates!
Hope you enjoy the puzzles!
If you have any bug, feedback or feature requests, please email Pran at:
pran@pranapps.com
--------------
Previous:
- Fixed a bug where long pressing a cell with single note won't fill it if the note is incorrect solution.
- Fixed a bug where long pressing a cell won't work if a number is locked.
- Added two new themes - Chartreuse (on black background) and Blue (with white background)
- Added a blood orange theme.
- Added a new setting "Number-lock default mode" which locks a number by simply tapping it without having to long press. With the new locked mode on, you can tap the locked number again and that will unlock it. This is useful for those who prefer locking the number and then filling multiple cells as their preferred way of entry. This setting is OFF by default.
- Added a new setting "Start in note mode" which makes note mode on when a game starts. This setting is OFF by default.
- Added 2 new themes - Red on black and Pink on black.
- Fixed a bug where "when you lock a number, the numbers and notes are individually highlighted, but if you then enter note mode and tap a cell, you lost all of the individually highlighted notes." Entering note mode with locked number and then tapping a cell should no longer lose the highlights.
5.6 15/05/2021
- Fixed a bug where long pressing a cell with single note won't fill it if the note is incorrect solution.
- Fixed a bug where long pressing a cell won't work if a number is locked.
I offer a beautiful app free of ads, subscriptions, trackers and analytics for the absolute best experience for my users. If you are enjoying the puzzles, please leave me a positive rating on the app store as that helps get the word out to others! You can also purchase the one time only small in app purchase to help support development and future updates!
Hope you enjoy the puzzles!
If you have any bug, feedback or feature requests, please email Pran at:
pran@pranapps.com
--------------
Previous:
- Added two new themes - Chartreuse (on black background) and Blue (with white background)
- Added a blood orange theme.
- Added a new setting "Number-lock default mode" which locks a number by simply tapping it without having to long press. With the new locked mode on, you can tap the locked number again and that will unlock it. This is useful for those who prefer locking the number and then filling multiple cells as their preferred way of entry. This setting is OFF by default.
- Added a new setting "Start in note mode" which makes note mode on when a game starts. This setting is OFF by default.
- Added 2 new themes - Red on black and Pink on black.
- Fixed a bug where "when you lock a number, the numbers and notes are individually highlighted, but if you then enter note mode and tap a cell, you lost all of the individually highlighted notes." Entering note mode with locked number and then tapping a cell should no longer lose the highlights.
5.4 12/05/2021
- Added two new themes - Chartreuse (on black background) and Blue (with white background)
I offer a beautiful app free of ads, subscriptions, trackers and analytics for the absolute best experience for my users. If you are enjoying the puzzles, please leave me a positive rating on the app store as that helps get the word out to others! You can also purchase the one time only small in app purchase to help support development and future updates!
Hope you enjoy the puzzles!
If you have any bug, feedback or feature requests, please email Pran at:
pran@pranapps.com
--------------
Previous:
- Added a blood orange theme.
- Added a new setting "Number-lock default mode" which locks a number by simply tapping it without having to long press. With the new locked mode on, you can tap the locked number again and that will unlock it. This is useful for those who prefer locking the number and then filling multiple cells as their preferred way of entry. This setting is OFF by default.
- Added a new setting "Start in note mode" which makes note mode on when a game starts. This setting is OFF by default.
- Added 2 new themes - Red on black and Pink on black.
- Fixed a bug where "when you lock a number, the numbers and notes are individually highlighted, but if you then enter note mode and tap a cell, you lost all of the individually highlighted notes." Entering note mode with locked number and then tapping a cell should no longer lose the highlights.
5.2 07/05/2021
- Added a blood orange theme.
I offer a beautiful app free of ads, subscriptions, trackers and analytics for the absolute best experience for my users. If you are enjoying the puzzles, please leave me a positive rating on the app store as that helps get the word out to others! You can also purchase the one time only small in app purchase to help support development and future updates!
Hope you enjoy the puzzles!
If you have any bug, feedback or feature requests, please email Pran at:
pran@pranapps.com
--------------
Previous:
- Added a new setting "Number-lock default mode" which locks a number by simply tapping it without having to long press. With the new locked mode on, you can tap the locked number again and that will unlock it. This is useful for those who prefer locking the number and then filling multiple cells as their preferred way of entry. This setting is OFF by default.
- Added a new setting "Start in note mode" which makes note mode on when a game starts. This setting is OFF by default.
- Added 2 new themes - Red on black and Pink on black.
- Fixed a bug where "when you lock a number, the numbers and notes are individually highlighted, but if you then enter note mode and tap a cell, you lost all of the individually highlighted notes." Entering note mode with locked number and then tapping a cell should no longer lose the highlights.
5.1 08/04/2021
- Added a new setting "Number-lock default mode" which locks a number by simply tapping it without having to long press. With the new locked mode on, you can tap the locked number again and that will unlock it. This is useful for those who prefer locking the number and then filling multiple cells as their preferred way of entry. This setting is OFF by default.
- Added a new setting "Start in note mode" which makes note mode on when a game starts. This setting is OFF by default.
- Added 2 new themes - Red on black and Pink on black.
- Fixed a bug where "when you lock a number, the numbers and notes are individually highlighted, but if you then enter note mode and tap a cell, you lost all of the individually highlighted notes." Entering note mode with locked number and then tapping a cell should no longer lose the highlights.
I offer a beautiful app free of ads, subscriptions, trackers and analytics for the absolute best experience for my users. If you are enjoying the puzzles, please leave me a positive rating on the app store as that helps get the word out to others! You can also purchase the one time only small in app purchase to help support development and future updates!
Hope you enjoy the puzzles!
If you have any bug, feedback or feature requests, please email Pran at:
pran@pranapps.com
5.0 07/04/2021
- Added a new setting "Don't highlight when filling notes" which will disable the row, column and block highlighting when filling notes. This setting is OFF by default.
I offer a beautiful app free of ads, subscriptions, trackers and analytics for the absolute best experience for my users. If you are enjoying the puzzles, please leave me a positive rating on the app store as that helps get the word out to others! You can also purchase the one time only small in app purchase to help support development and future updates!
Hope you enjoy the puzzles!
If you have any feedback or feature requests, please email Pran at:
pran@pranapps.com
4.9 28/12/2020
- Added a new setting which shakes the board when incorrect number is entered
- Small UI tweak
I offer an ad, subscription, tracker and analytics free and beautiful app for the absolute best experience for my users. If you are enjoying the puzzles, please leave me a positive rating on the app store as that helps get the word out to others! You can also purchase the one time only small in app purchase to help support development and future updates!
Hope you enjoy the puzzles!
If you have any feedback or feature requests, please email Pran at:
pran@pranapps.com
4.8 17/08/2020
- Fixed a bug which got introduced in the update from yesterday where multiple notes were being highlighted
- Previously, when a number didn't exist on the board yet, the notes weren't getting highlighted. Now it will highlight all the notes even when the number doesn’t exist on the board. There's also a new setting to switch off the "No X's yet" warning.
- Added a "Leave Review" button to the app
- The "Send Feedback" now shows alternate email client options
I offer an ad and analytics free and beautiful app for the absolute best experience for my users. If you are enjoying the puzzles, please leave me a positive rating on the app store as that helps get the word out to others!
Hope you enjoy the puzzles!
If you have any feedback or feature requests, please email Pran at:
pran@pranapps.com
4.7 07/03/2020
- Previously, when a number didn't exist on the board yet, the notes weren't getting highlighted. Now it will highlight all the notes even when the number doesn’t exist on the board. There's also a new setting to switch off the "No X's yet" warning.
- Added a "Leave Review" button to the app
- The "Send Feedback" now shows alternate email client options
I offer an ad and analytics free and beautiful app for the absolute best experience for my users. If you are enjoying the puzzles, please leave me a positive rating on the app store as that helps get the word out to others!
Hope you enjoy the puzzles!
If you have any feedback or feature requests, please email Pran at:
pran@pranapps.com
4.6 07/03/2020
1. Fixed a bug where when using hold to fill in cell, if you complete the board, it wasn't triggering end of game.
2. Added a feature - you can now swipe up or down on the notes button to toggle hide/show the notes/candidates. There's also a new setting which can disable this feature. It's on by default and is called "Swipe or Long Press notes to hide notes"
3. Added a new setting - whenever a cell with either given or already filled is selected, it won't highlight the corresponding row, column and block. This setting is now on by default and is called "Don't highlight when given is selected".
I offer an ad free and beautiful app for the absolute best experience for my users. If you are enjoying the puzzles, please leave me a positive rating on the app store as that helps get the word out to others!
Hope you enjoy the puzzles!
If you have any feedback or feature requests, please email Pran at:
pran@pranapps.com
4.4 30/01/2020
1. Fixed an annoying bug where the animation or quickly swiping on the board after entering a number was preventing the number from being removed from the notes of other rows, columns and blocks.
2. Added a new setting "Haptic feedback long press override". If the "Haptic feedback" is turned off, this setting can be turned on to still allow haptic feedback when entering numbers using long press (when a cell has only 1 solution note left).
Merry Christmas and Happy New Year to you all!
I offer an ad free and beautiful app for the absolute best experience for my users. If you are enjoying the puzzles, please leave me a positive rating on the app store as that helps get the word out to others!
Hope you enjoy the puzzles!
If you have any feedback or feature requests, please email Pran at:
pran@pranapps.com
4.2 18/12/2019
1. Now you can "Export Scores" from the app. This can be used in Excel.
2. Made small tweaks to optimize app for iOS 13.
I offer an ad free and beautiful app for the absolute best experience for my users. If you are enjoying the puzzles, please leave me a positive rating on the app store as that helps get the word out to others!
Hope you enjoy the puzzles!
If you have any feedback or feature requests, please email Pran at:
pran@pranapps.com
4.0 24/11/2019
Listening to user feedback:
- The "Long press to fill single option cell" now works for cells with only a single option in notes left too.
- Added a new setting "Long press to fill single option cell" which is on by default. If only a single number is left in that row / column / block or notes for that cell (note must be the correct answer), long pressing the cell auto-fills it. "This decreases finger stress (from having to go back to the number bar each time) and would make things a bit faster and more exciting." - Thanks Gregg!
- I have made changes to the beginner and easy level puzzle generation. It has been tweaked a bit to correctly reflect the difficulty. Before, many users mentioned that even the beginner and easy level was too hard. Now the beginner and easy level puzzles are easier.
I offer an ad free and beautiful app for the absolute best experience for my users. If you are enjoying the puzzles, please leave me a positive rating on the app store as that helps get the word out to others!
Hope you enjoy the puzzles!
If you have any feedback or feature requests, please email Pran at:
pran@pranapps.com
3.2 04/07/2019
Listening to user feedback:
- Added a new setting "Long press to fill single option cell" which is on by default. If only a single number is left in that row / column / block, long pressing the cell auto-fills it. "This decreases finger stress (from having to go back to the number bar each time) and would make things a bit faster and more exciting." - Thanks Gregg!
- I have made changes to the beginner and easy level puzzle generation. It has been tweaked a bit to correctly reflect the difficulty. Before, many users mentioned that even the beginner and easy level was too hard. Now the beginner and easy level puzzles are easier.
I offer an ad free and beautiful app for the absolute best experience for my users. If you are enjoying the puzzles, please leave me a positive rating on the app store as that helps get the word out to others!
Hope you enjoy the puzzles!
If you have any feedback or feature requests, please email Pran at:
pran@pranapps.com
3.0 03/07/2019
Listening to user feedback, I have made changes to the beginner and easy level puzzle generation. It has been tweaked a bit to correctly reflect the difficulty. Before, many users mentioned that even the beginner and easy level was too hard. Now the beginner and easy level puzzles are easier.
I offer an ad free and beautiful app for the absolute best experience for my users. If you are enjoying the puzzles, please leave me a positive rating on the app store as that helps get the word out to others!
Hope you enjoy the puzzles!
If you have any feedback or feature requests, please email Pran at:
pran@pranapps.com
2.9 28/06/2019
- As requested by a user, added two new settings which are OFF by default: "Different color for selected Row, Column, Block" and "Highlight entire cell of note containing selected number"
As a solo indie developer, there are ongoing costs of developing and maintaining the game. I don't use intrusive ads, trackers, subscriptions, or other nonsense that get in the way of playing. I provide all levels and customizations for free, hoping that players who enjoy the game will consider supporting it. So I'm asking, humbly: if my game has brought you a moment of fun, please consider making a one-time purchase to help me keep it ad-free. No subscription. Just one small way to say thanks. It's a small and fair amount which helps cover development costs of future updates. You can also leave me a positive rating on the app store as that helps get the word out to others!
Thank you for supporting me. Hope you are enjoying the puzzles :)
Send me feedback at:
pran@pranapps.com
more Version 15 6 hr ago
Data Not Collected The developer does not collect any data from this app.
