Pure Tuner – Temperaments
Just, meantone, Scala & drone
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
A tuner for historical and microtonal tunings: Werckmeister, Kirnberger, Vallotti, meantone, just intonation, 17 to 53 tones per octave, Scala files.
Almost every tuner measures against equal temperament. If you tune a harpsichord to Werckmeister, play meantone in a consort, sing pure thirds in a choir or own a 19-tone guitar, that is of little use. Pure Tuner measures against the tuning you actually play in.
Free:
• A display in the style of an analogue meter: long, thin needle, one tick per cent, a green zone of ±3 cents
• Switchable fine scale of ±15 cents for precise tuning close to the target note
• Reference pitch anywhere from 380 to 480 Hz. 392, 415, 430, 440, 442 and 466 Hz can be selected directly
• Detects low notes in the correct octave, from a five-string bass to a piccolo
• With plucked notes, the reading stays for a moment after the note has died away
One-time purchase "Every Tuning":
• Werckmeister III, Kirnberger II and III, Vallotti, Young II, Kellner, Bach/Lehman
• Quarter-, sixth- and third-comma meantone, Pythagorean, just intonation in any key
• Equal divisions of 17, 19, 22, 24, 31 and 53 tones, 22 shruti, Bohlen–Pierce
• A workshop for your own tunings: enter cents or frequency ratios, starting from any existing tuning
• Import and export of Scala files (.scl)
• A drone on the key note, with a pure fifth if you like, for tuning by ear
When you change the tuning, the key note stays where it is. Only the other notes move.
Pitch detection runs on your device, nothing is recorded or transmitted. No account, no ads, no subscription.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
On the iPad the app now uses more of the screen, with larger type, and the tunings and the workshop open as a whole page.
The developer, Christian-Conrad Knorr, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Christian-Conrad Knorr
- Size
- 2.3 MB
- Category
- Music
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English and German
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Every Tuning $3.99
- Copyright
- © 2026 Christian-Conrad Knorr
