# Tactus メトロノーム vs Jazz Time Trainer

The clearest difference is update cadence: Jazz Time Trainer at every 4 days against Tactus メトロノーム's every 2 months. Jazz Time Trainer also leads on iOS requirement (13.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Tactus メトロノーム ships an update every 2 months, Jazz Time Trainer every 4 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | Tactus メトロノーム | Jazz Time Trainer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Size | 4 MB | 19 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Susumu Hoshikawa](https://appshunter.io/developer/413265272) | [Sangwoo Shin](https://appshunter.io/developer/6778440317) |

## What reviewers say

### Tactus メトロノーム

[App page](https://appshunter.io/ios/app/tactus/id6758972535)

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

**In-app purchases:** none


### Jazz Time Trainer

[App page](https://appshunter.io/ios/app/jazz-time-trainer/id6778440315)

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

**In-app purchases:** none


## Frequently asked questions

### Is Tactus メトロノーム free?

Tactus メトロノーム is free to download, with no in-app purchases.

### Is Jazz Time Trainer free?

Jazz Time Trainer is free to download, with no in-app purchases.

### Do Tactus メトロノーム or Jazz Time Trainer have ads?

Neither Tactus メトロノーム nor Jazz Time Trainer shows ads.

### Which is updated more often, Tactus メトロノーム or Jazz Time Trainer?

Tactus メトロノーム ships an update every 2 months, and Jazz Time Trainer every 4 days. Most recently, Tactus メトロノーム was updated on October 25, 2026 and Jazz Time Trainer on October 25, 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.*