# THIM vs HIIT Timer

The clearest difference is review sentiment: HIIT Timer at 100% against THIM's 0%. HIIT Timer also leads on update cadence (every 3 weeks vs every 2 months). THIM's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, 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.

THIM ships an update every 2 months, HIIT Timer every 3 weeks. The most recent releases landed on September 22, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | THIM | HIIT Timer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 96 MB | 89 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Re-Time Pty Ltd](https://appshunter.io/developer/637379603) | [tsyk-app](https://appshunter.io/developer/1586870924) |

## What reviewers say

### THIM

[App page](https://appshunter.io/ios/app/thim-sleep-ring/id1538264675)

This app helps you improve sleep quality through a unique conditioning program developed by a sleep scientist. It tracks sleep stages, offers power naps, and features a smart alarm to wake you from light sleep. Monitor your sleep efficiency with a score used in sleep clinics.

**Highlights:** Sleep conditioning program, Track sleep quality and stages, Accurate 10-minute power naps, Smart alarm for light sleep wake-ups, Sleep efficiency scoring, Community for sleep optimization

**Features:** macOS Compatibility

**In-app purchases:** none


### HIIT Timer

[App page](https://appshunter.io/ios/app/hiit-timer-interval-and-tabata/id1586870922)

This app provides a simple interval timer for various high-intensity training styles like HIIT, Tabata, EMOM, and AMRAP. Track your workouts, maintain streaks, and save custom timer presets for easy access. It's designed for home or gym training and requires no account or subscription.

**Highlights:** HIIT & Tabata timer, EMOM interval training, AMRAP workout mode, Workout calendar tracking, Streak and stats tracking, Customizable presets, Smart workout reminders

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

**In-app purchases:** none


## Frequently asked questions

### Is THIM free?

THIM 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 THIM or HIIT Timer have ads?

HIIT Timer shows ads; THIM does not.

### Which is updated more often, THIM or HIIT Timer?

THIM ships an update every 2 months, and HIIT Timer every 3 weeks. Most recently, THIM was updated on September 22, 2026 and HIIT Timer on September 20, 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.*