# Keep Time vs Tone Gen Studio

The clearest difference is price: Keep Time at Free against Tone Gen Studio's $0.99. Keep Time also leads on device support (4 vs 2) and iOS requirement (13.0 vs 18.6). Tone Gen Studio's advantage is rating (5.0 vs 4.0) and in-app purchases (none vs 1). On ratings volume and ads there is nothing between them.

Keep Time is free to download; Tone Gen Studio costs $0.99 up front. Keep Time sells 1 one-off in-app purchase. Tone Gen Studio asks for nothing beyond the download.

Tone Gen Studio holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Keep Time ships an update every 4 months, Tone Gen Studio every 6 weeks. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Keep Time | Tone Gen Studio |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/keep-time/id574330593/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tone-gen-studio/id6758694837/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 3 MB | 5 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Justin Okun](https://appshunter.io/developer/429363982) | [Scott Manley](https://appshunter.io/developer/1864388985) |

## What reviewers say

### Keep Time

[App page](https://appshunter.io/ios/app/keep-time/id574330593)

This application provides musicians with a visual metronome to enhance their playing. It offers adjustable tempo, customizable sounds and colors, and various subdivision options. Advanced features for rhythm simulation are available through in-app purchases.

**Highlights:** Adjustable speed with touch gestures, 4 metronome sound options, 7 color choices for visualizer, Sub-division options (8th, 16th, triplets), Configurable visualizer beats per measure, Apple Watch remote tempo adjustment

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Feature Pack | $1.99 | one-time |


### Tone Gen Studio

[App page](https://appshunter.io/ios/app/tone-gen-studio/id6758694837)

Generate precise audio frequencies, conduct sweep tests, and analyze sound with a built-in microphone tuner and RTA analyzer. This toolkit is designed for musicians and audio engineers needing accurate tone and measurement tools.

**Highlights:** Pure tone generator with custom frequency, Preset tone pads, Sweep generator, Noise profiles (white, pink, brown), Binaural beats, Mic tuner with real-time display, RTA analyzer

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

**In-app purchases:** none


## Frequently asked questions

### Is Keep Time free?

Keep Time is free to download, with in-app purchases available.

### Is Tone Gen Studio free?

Tone Gen Studio costs $0.99, with no in-app purchases.

### Which has better reviews, Keep Time or Tone Gen Studio?

Tone Gen Studio is rated higher. Keep Time averages 4.0 out of 5 from 1 ratings, while Tone Gen Studio averages 5.0 from 1 ratings.

### Do Keep Time or Tone Gen Studio have ads?

Neither Keep Time nor Tone Gen Studio shows ads.

### Which is updated more often, Keep Time or Tone Gen Studio?

Keep Time ships an update every 4 months, and Tone Gen Studio every 6 weeks. Most recently, Keep Time was updated on October 6, 2026 and Tone Gen Studio on October 7, 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.*