Comparison

OnKey Lite vs Scale Study

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

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.

Highlights
  • Practice scales with MIDI keyboard
  • Log fastest accurate tempos
  • Track progress over time
  • Focus on speed and accuracy
  • Rhythm and timing tapping mode
Features
Read full description

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

OnKey Lite4 screens
Scale Study3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
OnKey Lite versus Scale Study: the parameters behind the verdict, then further details
ParameterOnKey LiteScale Study
PriceFreeFree
Rating4.5 (2 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings2 — better1
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better16.6
Further details — not scored
Size1 MB20 MB
Age rating4+4+
DeveloperRea MeirDiem Limited

Customer experience

OnKey Lite

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Scale Study

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

OnKey Lite

No in-app purchases

2 purchases

Scale Study

Subscriptions1
  • Scale Study Annual Subscription$0.991 Year
One-time1
  • Scale Study Lifetime Purchase$2.99

Questions

Is OnKey Lite free?
OnKey Lite is free to download, with no in-app purchases.
Is Scale Study free?
Scale Study is free to download, with in-app purchases available.
Which has better reviews, OnKey Lite or Scale Study?
Scale Study is rated higher. OnKey Lite averages 4.5 out of 5 from 2 ratings, while Scale Study averages 5.0 from 1 ratings.
Do OnKey Lite or Scale Study have ads?
Neither OnKey Lite nor Scale Study shows ads.
Which is updated more often, OnKey Lite or Scale Study?
OnKey Lite ships an update every 3 months, and Scale Study every 2 weeks. Most recently, OnKey Lite was updated on November 3, 2026 and Scale Study on October 31, 2026.

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