# Keys Trainer vs Audiquo Tuning Fork

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.

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.

## The numbers

| Metric | Keys Trainer | Audiquo Tuning Fork |
| --- | --- | --- |
| Price | $2.99 | **$1.99** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/keys-trainer/id1525979034/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 30 MB | 3 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Plearn LLC](https://appshunter.io/developer/6792172523) | [Michael Brady](https://appshunter.io/developer/1800785309) |

## What reviewers say

### Keys Trainer

[App page](https://appshunter.io/ios/app/keys-trainer/id1525979034)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Audiquo Tuning Fork

[App page](https://appshunter.io/ios/app/audiquo-tuning-fork/id6743006816)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Keys Trainer free?

Keys Trainer costs $2.99, with no in-app purchases.

### Is Audiquo Tuning Fork free?

Audiquo Tuning Fork costs $1.99, with no in-app purchases.

### Do Keys Trainer or Audiquo Tuning Fork have ads?

Neither Keys Trainer nor Audiquo Tuning Fork shows ads.

### Which is updated more often, Keys Trainer or Audiquo Tuning Fork?

Keys Trainer ships an update every 9 months, and Audiquo Tuning Fork every 2 months. Most recently, Keys Trainer was updated on November 3, 2026 and Audiquo Tuning Fork on October 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*