This application offers a unique approach to audio equalization by intelligently adjusting frequencies based on the detected key and scale of your music. It provides both musical enhancements and traditional EQ controls for detailed sound shaping.



250+ iOS apps curated and reviewed
Every iPhone needs a few good scaler music apps. We benchmark 250+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | $12.99 | 4.6★ (28) | No | No | Nov 2026 | ||
| 2 | Free | 4.8★ (1.3K) | No | Yes | Nov 2026 | ||
| 3 | Free | 1.0★ (1) | No | No | Oct 2026 | ||
| 4 | Free | 4.7★ (378) | No | Yes | Nov 2026 | ||
| 5 | Free | 4.8★ (9.3K) | No | Yes | Nov 2026 | ||
| 6 | Free | 4.0★ (4) | No | No | Oct 2026 | ||
| 7 | Free | — | No | Yes | Aug 2026 | ||
| 8 | $2.99 | 5.0★ (2) | No | No | Oct 2026 |



This application offers a unique approach to audio equalization by intelligently adjusting frequencies based on the detected key and scale of your music. It provides both musical enhancements and traditional EQ controls for detailed sound shaping.






Identify piano chords and scales by playing them on screen or a MIDI keyboard. Explore detailed information including notes, intervals, and fingering. Build chord progressions and discover compatible scales for composition and practice.




Explore and play music scales and chords without needing an instrument. This app helps musicians understand improvisation, play solos, and write music by providing organized scale information and interactive playback. It offers advanced features for finding compatible scales and chords.