# muscle training record log vs HIIT Timer

The clearest difference is iOS requirement: muscle training record log at 17.6 against HIIT Timer's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

muscle training record log ships an update every 2 months, HIIT Timer every 5 weeks. The most recent releases landed on September 26, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | muscle training record log | HIIT Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Size | 7 MB | 36 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [YUTAKA IZUMIYAMA](https://appshunter.io/developer/1657248429) | [Caprio Lab](https://appshunter.io/developer/1841174043) |

## What reviewers say

### muscle training record log

[App page](https://appshunter.io/ios/app/muscle-training-record-log/id6746397077)

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

**In-app purchases:** none


### HIIT Timer

[App page](https://appshunter.io/ios/app/hiit-timer-simple-timer/id6752818078)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is muscle training record log free?

muscle training record log is free to download, with no in-app purchases.

### Is HIIT Timer free?

HIIT Timer is free to download, with no in-app purchases.

### Do muscle training record log or HIIT Timer have ads?

Both muscle training record log and HIIT Timer show ads.

### Which is updated more often, muscle training record log or HIIT Timer?

muscle training record log ships an update every 2 months, and HIIT Timer every 5 weeks. Most recently, muscle training record log was updated on September 26, 2026 and HIIT Timer on September 16, 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.*