OnKey Lite vs Scale Study
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OnKey Lite
This app generates readable, note-based exercises for practicing musical scales and chords. It's ideal for warm-ups, technique drills, or theory work, catering to musicians of all levels. Customize your practice with various patterns, keys, and note name options.
- Generate note-based exercises
- Practice scales and chords
- Transpose to any key
- Set range and clef
- Choose from various patterns
- Add note names and time signatures
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OnKey Lite 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.
Scale Study
Improve your piano scale technique by practicing tempo and accuracy. Connect a MIDI keyboard to log your fastest clean tempos and track progress over time. A tapping mode is available for rhythm practice without a keyboard.
- Practice scales with MIDI keyboard
- Log fastest accurate tempos
- Track progress over time
- Focus on speed and accuracy
- Rhythm and timing tapping mode
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Piano scale practice is a core part of building technique, but improving means more than playing the right notes. You need to increase tempo while staying accurate and in control. Scale Study helps you practice scales and improve your tempo in a clear and measurable way. Connect a MIDI keyboard or digital piano and play your scales as usual. The app listens to your playing, confirms when a scale is correct, and records the fastest tempo you can play it cleanly. This helps you see which scales are improving and which need more work. You can start slowly to build accuracy, then increase the tempo over time. Scale Study keeps a record of your progress so you can see your speed improve through regular practice. Practice Anywhere mode is also included for when you do not have a keyboard. This is a simple tapping mode that helps you practice rhythm and timing, but the full scale detection and tempo tracking requires a MIDI keyboard. Features • Practice major and minor scales using a MIDI keyboard • See the fastest tempo you can play each scale accurately • Track your progress over time • Focus on both speed and accuracy • Practice Anywhere tapping mode for rhythm and timing This is useful for piano students preparing for exams such as ABRSM, and for anyone who wants to improve their scale tempo and overall technique. Scale Study is a small, focused app made by an independent developer. I am Shane, and I read every review and message. The goal is simple. Help you improve your scales and increase your tempo through regular, focused practice. Try it free, then upgrade with a yearly or lifetime purchase. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Scale Study at 5.0 against OnKey Lite's 4.5. Scale Study also leads on update cadence (every 2 weeks vs every 3 months). OnKey Lite's advantage is in-app purchases (none vs 2) and iOS requirement (14.0 vs 16.6). On price, ratings volume, ads and device support 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
Both are free to download. Scale Study sells 2 in-app purchases, starting at $0.99 per year. OnKey Lite asks for nothing beyond the download.
Scale Study holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
OnKey Lite ships an update every 3 months, Scale Study every 2 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | OnKey Lite | Scale Study |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 1 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Rea Meir | Diem Limited |
Customer experience
OnKey Lite
Scale Study
In-app purchases
OnKey Lite
No in-app purchases
Scale Study
- Scale Study Annual Subscription$0.991 Year
- Scale Study Lifetime Purchase$2.99









