Tritone Jazz vs OnKey
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tritone Jazz
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.
- 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
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Practicing jazz improvisation is not always easy. Tritone Jazz can give you piano, bass and drums accompaniments. All you need is to type in the chords. Melody is also played if included. Even voice, too. The song data is actually text-format so that you can send it by text message or e-mail. You can print the chart with chords, notes and lyrics. Please check the demo videos at http://youtube.com/channel/UCwptdeJOI1b2Qc3uajDiY2w
OnKey
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.
- 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
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OnKey Scale Practice is a simple, effective tool that helps musicians practice scales and chords with clarity and focus. Just enter your preferences and instantly generate readable, note-based exercises—no more flipping through books or writing them out by hand. Perfect for warm-ups, technique drills, or theory work, whether you're a beginner or an advanced player. Features: Select your scale or chord type Transpose to any key Set your range and clef Choose from various patterns Add note names and time signatures Designed for flexibility. Built for clarity. For all instruments.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Tritone Jazz | OnKey |
|---|---|---|
| Price | $6.99 | $4.99 — better |
| Rating | 1.0 (1 ratings) | 3.0 (2 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 14.1 |
| Further details — not scored | ||
| Size | 107 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Jazz Soft, Inc. | Rea Meir |
Customer experience
Tritone Jazz
OnKey
In-app purchases
Tritone Jazz
No in-app purchases
OnKey
No in-app purchases
Questions
Is Tritone Jazz free?
Is OnKey free?
Which has better reviews, Tritone Jazz or OnKey?
Do Tritone Jazz or OnKey have ads?
Which is updated more often, Tritone Jazz or OnKey?
Other comparisons
