# Super Simple Interval Timer vs HIIT Trainer

The clearest difference is update cadence: HIIT Trainer at every 2 days against Super Simple Interval Timer's every 9 days. 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.

Super Simple Interval Timer ships an update every 9 days, HIIT Trainer every 2 days. The most recent releases landed on October 3, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Super Simple Interval Timer | HIIT Trainer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 2 days** |
| Size | 3 MB | 14 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Robin Borjesson](https://appshunter.io/developer/1727936381) | [巧 唐](https://appshunter.io/developer/6790363579) |

## What reviewers say

### Super Simple Interval Timer

[App page](https://appshunter.io/ios/app/super-simple-interval-timer/id6476832998)

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

**In-app purchases:** none


### HIIT Trainer

[App page](https://appshunter.io/ios/app/hiit-trainer-interval-timer/id6790511820)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Super Simple Interval Timer free?

Super Simple Interval Timer is free to download, with no in-app purchases.

### Is HIIT Trainer free?

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

### Do Super Simple Interval Timer or HIIT Trainer have ads?

Neither Super Simple Interval Timer nor HIIT Trainer shows ads.

### Which is updated more often, Super Simple Interval Timer or HIIT Trainer?

Super Simple Interval Timer ships an update every 9 days, and HIIT Trainer every 2 days. Most recently, Super Simple Interval Timer was updated on October 3, 2026 and HIIT Trainer on October 10, 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.*