# Tritone Jazz vs OnKey

The clearest difference is rating: OnKey at 3.0 against Tritone Jazz's 1.0. OnKey also leads on price ($4.99 vs $6.99). Tritone Jazz's advantage is iOS requirement (11.0 vs 14.1). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

Tritone Jazz costs $6.99 and OnKey $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

OnKey holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Tritone Jazz ships an update every 6 weeks, OnKey every 2 months. The most recent releases landed on October 24, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Tritone Jazz | OnKey |
| --- | --- | --- |
| Price | $6.99 | **$4.99** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/tritone-jazz/id1439040353/reviews) | **[3.0 (2 ratings)](https://appshunter.io/ios/app/onkey-scale-practice/id1638204692/reviews)** |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Paid | Paid |
| Size | 107 MB | 2 MB |
| Requires iOS | **11.0** | 14.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jazz Soft, Inc.](https://appshunter.io/developer/1439040352) | [Rea Meir](https://appshunter.io/developer/1638204694) |

## What reviewers say

### Tritone Jazz

[App page](https://appshunter.io/ios/app/tritone-jazz/id1439040353)

This app provides piano, bass, and drum accompaniments for jazz improvisation practice. Users can input chords and even melodies or vocals, with the option to print charts including chords, notes, and lyrics. Song data is stored in a text format for easy sharing.

**Highlights:** Chord-based accompaniments, Piano, bass, and drum backing tracks, Melody and voice playback, Printable charts with chords, notes, and lyrics, Text-format song data for sharing

**In-app purchases:** none


### OnKey

[App page](https://appshunter.io/ios/app/onkey-scale-practice/id1638204692)

This app generates readable, note-based exercises for practicing scales and chords. It's ideal for musicians of all levels looking for a focused and efficient way to improve their technique and theory knowledge without manual preparation.

**Highlights:** Generate note-based exercises, Select scale or chord type, Transpose to any key, Set range and clef, Choose from various patterns, Add note names and time signatures

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Tritone Jazz free?

Tritone Jazz costs $6.99, with no in-app purchases.

### Is OnKey free?

OnKey costs $4.99, with no in-app purchases.

### Which has better reviews, Tritone Jazz or OnKey?

OnKey is rated higher. Tritone Jazz averages 1.0 out of 5 from 1 ratings, while OnKey averages 3.0 from 2 ratings.

### Do Tritone Jazz or OnKey have ads?

Neither Tritone Jazz nor OnKey shows ads.

### Which is updated more often, Tritone Jazz or OnKey?

Tritone Jazz ships an update every 6 weeks, and OnKey every 2 months. Most recently, Tritone Jazz was updated on October 24, 2026 and OnKey on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*