Keys Trainer vs Musician's Looper
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Keys Trainer
Master key signatures and scales with this music learning app. Practice identifying keys, understanding note sharps/flats, and instantly recognizing scale layouts on a keyboard. Features include customizable practice, passive viewing, and a challenging game mode.
- Key signature recognition
- Scale layout identification
- Customizable learning range
- Intelligent training based on performance
- Practice, View, Game, and Search modes
- Earn coins, medals, and trophies
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Do you want to be capable of recognizing the key signatures at first sight? That is, when you see a key signature, you know what key it is and what notes should be sharp or flat immediately. Do you want to have the ability of instantly identifying the scale layout on a piano/keyboard for a given key? If your answer is yes, check out this app. It can help you acquire these skills which can definitely benefit your music learning and piano playing. Main Features: • Practice Mode You learn at your own pace simply by answering the question, and if you are wrong, the correct answer will be shown for the duration of your choice. • View Mode You don’t need to do anything but watching, the questions and answers will be shown automatically after the delay of your choice. Good for lazy people like me. • Game Mode In this exciting countdown mode, you can challenge yourself and earn as many coins, medals, and trophies as you can. • Search Mode This mode allows you to look up the keys by name, key signature or keyboard. • Learning Range Customization You can customize your learning range sot that you can focus on improving your weaknesses. • Intelligent Training Each question is generated intelligently based on the statistical information of your performance so that it can turn your weaknesses into strengths.
Musician's Looper
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This app is useful for repeatedly practicing specific sections when practicing an instrument or singing, or when learning music by ear. You can record and layer your own performance while playing back a track, change the playback speed, place markers so playback starts from specific points, and set loop playback for selected sections. It can also integrate with your Apple Music, allowing you to use songs from Apple Music as practice tracks. For music files imported from Files, it also supports a 10-band EQ, so you can adjust the bass and treble or focus on listening to only a specific frequency range. To make practice even more productive, the app includes a variety of helpful features: * A setlist feature that lets you create practice lists for upcoming performances * A calendar feature that shows your practice history * The ability to add events to the calendar and keep notes for the day of a performance * A countdown feature for upcoming events to help boost motivation * Reminder functionality to help you stay consistent with daily practice * A high-performance metronome that supports multiple measures with mixed time signatures and note values * A tuner and tuning fork feature that supports 440Hz, 442Hz, and other pitches * The ability to attach PDFs and photos, with trapezoid correction for photos so they can be neatly stretched and saved as rectangles * The ability to annotate PDFs by hand or with Apple Pencil * The ability to leave notes for each song * iCloud sync, so you can save settings and sync them across multiple devices Pro Features * Removes the limit on the number of saved metronome settings and unlocks additional sound options beyond the default tone * Unlocks PDF sharing * Removes the limit on saved recordings * Removes ads We hope this app will help anyone aiming for more precise performances in all kinds of musical settings, including concerts, live shows, recitals, meetups, solo performances, ensembles, daily practice, and the real stage. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ 利用規約: https://musicianslooper.feb19.jp/terms Privacy Policy: https://musicianslooper.feb19.jp/privacy
Screenshots
Verdict
The clearest difference is price: Musician's Looper at Free against Keys Trainer's $2.99. Musician's Looper also leads on update cadence (fortnightly vs every 9 months). Keys Trainer's advantage is in-app purchases (none vs 2) and ads (none vs shown). On 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
Musician's Looper is free to download; Keys Trainer costs $2.99 up front. Musician's Looper sells 2 in-app purchases, starting at $2.99 per month. Keys Trainer asks for nothing beyond the download.
Keys Trainer ships an update every 9 months, Musician's Looper fortnightly. The most recent releases landed on October 22, 2026 and October 21, 2026 respectively.
| Parameter | Keys Trainer | Musician's Looper |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 9 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 30 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Plearn LLC | feb19 |
In-app purchases
Keys Trainer
No in-app purchases
Musician's Looper
- Monthly Plan$2.991 Month
- Yearly Plan$29.991 Year
Questions
Is Keys Trainer free?
Is Musician's Looper free?
Do Keys Trainer or Musician's Looper have ads?
Which is updated more often, Keys Trainer or Musician's Looper?
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