Expo & React Native components
Explorer components before use
Free · In-App Purchases · Designed for iPad. Not verified for macOS.
22 tracks, 520 lessons and 666 interview questions, all offline. Plus 50 runnable library demos with the real source code beside every screen.
React Native Components & APIs is two things in one app: a catalog of runnable
library demos, and a full React Native learning library. All of it works
offline.
50 RUNNABLE LIBRARY EXPLORERS
Open a library, run its demos, and read the exact source that produced the
screen in front of you:
• Frameworks & platform — React Native core (RNTester), Expo Components,
TanStack Query, TinyBase, Zustand, Legend-State
• UI kits & design systems — React Native Paper, Tamagui, HeroUI Native,
Gluestack UI, NativeWindUI, Enriched Markdown, Enriched HTML, Bottom Sheet
• Graphics & motion — Skia, Reanimated, Lottie, Victory Native XL, Gifted
Charts, Mesh Gradient, Glass Effect
• Lists, forms & data — FlashList, LegendList, React Hook Form, Formik, SQLite
• Native integrations — VisionCamera, Maps, Notifee, Audio API, Gesture
Handler, Haptics, Live Photo, Notifications, Action Sheet
READ THE SOURCE, NOT A DOC SITE
Every demo ships with a built-in source viewer. Tap the code icon on any screen
to read the actual TypeScript behind it, switch between files, and copy what you
need into your own project. The version shown next to each library is the
version the app is genuinely built against.
A CURRICULUM, NOT A LINK DUMP
520 lessons across 22 tracks: JavaScript and TypeScript foundations, React 19,
the New Architecture, navigation, performance, native modules, testing,
security, release engineering, architecture patterns, and building with AI.
Every code sample is compiled against the installed React Native 0.86, React
19.2 and Expo 57 — if a sample would not build, the app would not have shipped.
INTERVIEW PREPARATION THAT GOES DEEPER THAN A LIST
666 questions with short answers, full explanations, and 1,317 follow-up
questions — the ones an interviewer actually asks next, graded across beginner,
intermediate and advanced.
PRACTICE, NOT JUST READING
• Spaced repetition across 430 flashcards and your interview questions, on one
schedule — rate how well you recalled it and the card comes back when it
should
• 36 quizzes, 540 questions, with an explanation behind every answer
• 17 cheat sheets, 5 release-day checklists, 11 decision guides and 40 code
challenges
• A 337-term glossary that appears inline as you read — tap any term without
losing your place
• Search across lessons, terms, questions, cheat sheets, checklists and quizzes
at once
EVERYTHING IS OFFLINE
The whole library ships inside the app. No account, no sign-in, no network
required — on a plane, on the underground, or in a waiting room before the
interview.
ONE PURCHASE, NO SUBSCRIPTION
Every library demo and its source code is free. The learning library opens the
first share of every section for free, and a single one-time purchase — pick
whatever tier feels fair, from a cup of coffee upward — unlocks every lesson and
interview question for good and removes ads. No subscription, nothing expires.
WHO IT IS FOR
• React Native developers evaluating a library before adding a dependency
• Engineers preparing for a mobile interview
• Anyone learning React Native who would rather run code than read about it
Feedback is genuinely welcome — there is a Send Feedback link in the More tab.
Ratings & Reviews
Version 7.0 is a complete rebuild.
• Rewritten from the ground up on Expo SDK 57, React Native 0.86, React 19 and
Expo Router, with the New Architecture and the React Compiler enabled.
• A new catalog: 50 runnable library explorers grouped into Frameworks, UI kits,
Graphics & motion, and Native integrations, each with its own demo set.
• Built-in source viewer — read the real TypeScript behind any demo, switch
files, and copy it out.
• A full React Native learning library: 22 tracks, 520 lessons, 666 interview
questions with 1,317 follow-ups, a 337-term glossary, 36 quizzes, 430
flashcards on a spaced-repetition schedule, 17 cheat sheets, 11 decision
guides and 40 code challenges.
• Search across every content type at once, plus pinned favourites in the
catalog.
• Subscriptions replaced with a single one-time support purchase — choose your
own tier, unlock everything forever, and never see an ad again.
• Existing supporters and anyone who previously bought the lifetime unlock keep
full access automatically; use Restore Purchases in the More tab.
• Refreshed app icon and branding.
Thanks for using the app — tell me what to build next via More → Send Feedback.
The developer, Saravanakumar GN, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Saravanakumar GN
- Size
- 307.6 MB
- Category
- Developer Tools
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Pizza for the Team USD 22.99
- Coffee & Cake USD 5.99
- Burger Meal USD 11.99
- Cup of Coffee USD 1.99
- Support Chocolate USD 1.99
- lollipop USD 0.99
- Lifetime premium USD 5.99
- Support Us USD 5.99
- Support Us USD 3.99
- Support Us USD 1.99
- Copyright
- © saravanakumargn
