# Interval Training vs MultiTuneKeys

The clearest difference is in-app purchases: Interval Training at none against MultiTuneKeys's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. MultiTuneKeys sells 1 one-off in-app purchase. Interval Training asks for nothing beyond the download.

Interval Training ships an update every 2 weeks, MultiTuneKeys every 9 days. The most recent releases landed on October 15, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Interval Training | MultiTuneKeys |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Size | 5 MB | 6 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [MIZOU, CO., LTD.](https://appshunter.io/developer/1542553141) | [Yasuhiro Misawa](https://appshunter.io/developer/1892754235) |

## What reviewers say

### Interval Training

[App page](https://appshunter.io/ios/app/interval-training-mizou/id6760253212)

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

**In-app purchases:** none


### MultiTuneKeys

[App page](https://appshunter.io/ios/app/multitunekeys/id6764493629)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Interval Training free?

Interval Training is free to download, with no in-app purchases.

### Is MultiTuneKeys free?

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

### Do Interval Training or MultiTuneKeys have ads?

Both Interval Training and MultiTuneKeys show ads.

### Which is updated more often, Interval Training or MultiTuneKeys?

Interval Training ships an update every 2 weeks, and MultiTuneKeys every 9 days. Most recently, Interval Training was updated on October 15, 2026 and MultiTuneKeys on October 5, 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.*