Long instrument names are shortened on small displays so they no longer collide with other elements. Chromatic and automatic note detection are now available in the demo as well. Instrument catalog: fixed an issue where the “Save” button was not visible.

New in version 3.0.1 Increased contrast for bright surroundings: Settings → Interface → Increased contrast. Needle, scale, icons and menu texts are then drawn more strongly.

A reworked interface with a built-in manual: updated menus, calmer colours and adjusted sizes on iPad. Under “Information & Support” you will find a comprehensive manual covering every feature, with practical tips and advice. Instrument catalogue: Save your customers’ instruments with concert pitch, temperament and further details. The catalogue can be sorted and searched efficiently. Temperament catalogue: equal, historical and any number of custom temperaments. Backup: Save your catalogues and settings automatically to your iCloud Drive, or by hand as a file. Multi-microphone analysis for steadier readings. Dynamic measuring range: on heavily out-of-tune instruments the range widens from ±50 to as much as ±200 cents. The monthly and yearly subscriptions now start with a free trial month. Cancel any time in the App Store; after that, the free demo remains available.

2.1.1: - Bugfixes for restoring previous customer purchases.

New in Version 2.1: - Stabilized automatic note detection - Notes can now be changed by swiping: swipe right = +1 semitone, swipe left = -1 semitone, swipe up = +1 octave, swipe down = -1 octave — available in all note recognition modes - New display smoothing modes: strong, light, none, and adaptive. Tap the smoothing icon to cycle through modes. The new adaptive mode automatically adjusts smoothing based on cent deviation — stable near the target pitch, responsive further away. The smoothed range is adjustable via a slider (double-tap the smoothing icon)

In Version 2.0.1 we fixed an issue with the calibration factor missing a decimal place. Additionally, we slightly revised and condensed the user notes for manual calibration.

We have enhanced OnlyPure and improved the overall user experience. The version 2.0 includes: SIMPLIFIED LICENSE MODEL OnlyPure is now available as a single Premium Version with full functionality — offered as a monthly or annual subscription. The previous “Basic” variants are only offered as perpetual license. Previously purchased licenses and active subscriptions remain fully valid and can be restored at any time via “Restore Purchases” (for example after reinstalling the app or switching devices). MODERNIZED USER INTERFACE • The app has been comprehensively updated both visually and structurally — clearer, more streamlined, and more intuitive without changing the original concept of a clear and intuitive user interface. • Temperaments can now be selected directly within the app (tap the tuning fork). • We added a possibility to directly get in touch with our support team in case of questions or problems from within the App. • We added release notes and build information to the info-icon. ENHANCED TUNING FEATURES (subscribers) • If desired, the concert pitch (A4) can be individually calibrated to an external reference by tapping on the displayed concert pitch. CONSOLIDATED AUDIO SETTINGS • All audio options are now centrally accessible via taping the microphone icon. • Quick access to adjust input sensitivity — double-tap on microphone icon. Choose sensitivity value such that microphone is filled when striking a key and the indicators move smoothly.

New in version 1.2.2: - Improvement of internal data processing of customer payments. - Minor bugfixes for graphical user interface. - Slightly revised product description.

Update 1.2.1  - Now compatible to iOS 18 and higher - Minimum system requirements now iOS 16.6 or higher

The verison 1.2 major update includes: 1. EXCLUSIVELY FOR SUBSCRIPTION CUSTOMERS: CHOOSE OTHER TEMPERAMENTS. For subscription customers, version 1.2 now offers the option of changing the temperament for your tuning. In addition to the pure twelfth tuning, only:pure also supports the standard tuning of pure octaves, pure fifths and two other "experimental" temperaments. The temperament can be selected via the general settings of only:pure, which you can access from the home screen of your device via Options > only:pure > Temperament. The current temperament is displayed in the bottom left area of the screen. 2. SWITCH BETWEEN SENSITIVITY MODES DURING TUNING. Swipe left or right anywhere on the main screen of only:pure to switch between two different sensitivity modes: "Normal" and "High". The current mode is displayed at the bottom right of the screen. The "High" mode corresponds to the behavior that was released with version 1.1 of only:pure. This ensures a fast response, but can be difficult to control in practice. The "Normal" mode is less responsive, i.e. the indicators move more smoothly but may adapt less quickly to frequency changes. Some piano tuners prefer the "Normal" mode, especially when the differences between two notes are relatively small. We recommend using the "Normal" mode if the frequency difference between two notes is less than approx. 2 Hz. 3. Minor graphical improvements on the user interface and bugfixes.

In Version 1.1, we introduced: - Improved graphical user interface for In-App purchases. - Improved workflow when transitioning between billing periods and/or different subscriptions.

Version 1.0.1: - Correction of typo in user notification if no product has been purchased yet - Minor update of product description