66+ iOS apps & games curated and reviewed
Looking for free tonic number apps and games? 19 of our 66+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | — | No | Yes | May 2026 |
| 2 |  | Free | 4.9★ (222) | No | No | Jul 2026 |
| 3 |  | Free | 2.0★ (2) | No | No | Aug 2026 |
| 4 |  | Free | — | Yes | Yes | May 2026 |
| 5 |  | Free | — | Yes | No | May 2026 |
| 6 |  | Free | 3.0★ (2) | No | No | Aug 2026 |
| 7 |  | Free | 2.7★ (3) | No | No | May 2026 |
| 8 |  | Free | — | No | No | Jun 2026 |
Explore music theory with a visual representation of the 12 keys. Understand scales, compose chord progressions, and mix in key. Features color-coded relationships, key signatures, and sounded chords for each key.
Engage your mind with a puzzle game that challenges you to arrange numbers in the correct sequence. If you enjoy mathematical challenges and digital puzzles, this game offers a unique and engaging experience.
This utility app provides an audio countdown or count-up feature between any two numbers. It is designed to handle large numbers and offers spoken output for each increment or decrement.
Learn music scales and chords with this app. It visualizes the number interval system and note names for your instrument, aiding improvisation. Supports guitar, bass, and piano with easy key selection.
This app helps you manage your finances with a simple and elegant interface. Easily track daily expenses and income, set monthly budgets, and monitor your spending habits. It offers features like transaction history, repeating transactions, and category management.
This application helps harmonica players tune their instrument and identify notes in real-time. It supports various harmonica tunings and allows users to highlight different musical scales.
Engage in a unique and addictive number puzzle game. Assign numbers to cells within outlined zones based on zone size and adjacency rules. Enjoy multiple difficulty levels and offline play.
This music theory app serves as a comprehensive chord and scale dictionary for musicians. It aids in finding chords and scales by inputting keys, offers a chord progression builder, and allows users to create and save custom chords and scales. Practice and explore musical concepts with interactive tools.
Identify chords from live MIDI input or manual note entry. Explore harmony, build chords, and browse scales with musically informed analysis. Learn and understand music theory with real-time feedback.
Explore the circle of fifths with interactive scale displays. Select keys via touch or slider to view major and parallel minor scales. Customize note notation and clef for a personalized musical experience.