Keys Trainer vs Audiquo Tuning Fork
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.
Audiquo Tuning Fork
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Audiquo Tuning Fork, for iPhone and Apple Watch, plays the 24 musical pitches in Octaves 4 and 5. The pitches are from C4 to B4 in Octave 4 and from C5 to B5 in Octave 5. Pitches play and slowly fade away, just like a tuning fork. Pitches are arranged on the familiar and intuitive Equal-Tempered Chromatic Circle and are based on A4 at 440 Hz -- "Concert Pitch". To play a pitch in Octave 4, tap it on the Chromatic Circle. To play a pitch in Octave 5, long-press it on the Chromatic Circle. When a pitch is played, it moves to the center of the display and becomes the currently-selected pitch. Once selected, you can use the Play button to replay it. To stop playing, tap where the note came from on the Chromatic Circle. Tap there again to deselect the pitch and return it to its position on the Chromatic Circle. On iPhone, when a pitch is played, it is added to the Recent Pitches panel for quick replay. All current Apple Watch models – along with Apple Watch Ultra 2 and Apple Watch Series 10 – can play pitches on their built-in speakers. Older models must be connected to an external (e.g. Bluetooth) audio device. On Apple Watch, tap the center of the display (avoiding the play button, if present) to switch quickly between sharp and flat accidentals. On supported Apple Watches, the Double Tap gesture replays the currently-selected pitch. Also on Apple Watch, you can add complications to your watch face for quick access, and you can add a Smart Stack widget to replay the currently-selected pitch or to open the app. Audiquo Tuning Fork offers four attractive color themes and four music notations: Scientific, Fixed-Do, German and Helmholtz. On iPhone, theme and notation settings are accessible directly from the app screen. Other settings are accessible via the Settings app. On Apple Watch, long-press the center of the display to access the settings. Whether you're performing, practicing, rehearsing or listening to music, Audiquo Tuning Fork can provide just the pitch you need, right there on your iPhone and Apple Watch, one tap away, instantly ready.
Screenshots
Verdict
The clearest difference is update cadence: Audiquo Tuning Fork at every 2 months against Keys Trainer's every 9 months. Audiquo Tuning Fork also leads on price ($1.99 vs $2.99). Keys Trainer's advantage is iOS requirement (12.0 vs 18.0). On ads, in-app purchases 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
Keys Trainer costs $2.99 and Audiquo Tuning Fork $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Keys Trainer ships an update every 9 months, Audiquo Tuning Fork every 2 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | Keys Trainer | Audiquo Tuning Fork |
|---|---|---|
| Price | $2.99 | $1.99 — better |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 9 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, Apple Watch |
| Requires iOS | 12.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 30 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Plearn LLC | Michael Brady |
In-app purchases
Keys Trainer
No in-app purchases
Audiquo Tuning Fork
No in-app purchases
Questions
Is Keys Trainer free?
Is Audiquo Tuning Fork free?
Do Keys Trainer or Audiquo Tuning Fork have ads?
Which is updated more often, Keys Trainer or Audiquo Tuning Fork?
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