About this app
Learn how to hear whether musical intervals are flat or sharp by playing a fun quiz-style game! Flat or Sharp includes all musical intervals from a minor 2nd all the way up to two octaves, in melodic or harmonic varieties. Difficulty levels are fully customizable with a variety of options to accommodate any level of musicianship, from beginner to seasoned pro. - Progressively hone your ear by setting desired tuning accuracy from +/- 50 cents all the way down to +/- 5 cents. - Play notes for as long as 4 seconds or as little as 0.2 seconds to work on how quickly you can recognize the intonation. - Play intervals harmonically or melodically; ascending or descending. - Adjust musical register and timbre of tones to suit your personal preferences. - Track your progress with percentage correct and longest streak of correct guesses, viewable by time frame, so you can see how your ear improves with practice! - Packed full of information on practice suggestions and tips for hearing each of the musical intervals!
Latest release
What’s New
This version features a full re-design of the app's appearance, various bug fixes, addition of the "in-tune" option, and a subscription option for the premium features.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 20, 2026 · 4:34 AM Free
Screenshots
