# Tabata Timer and HIIT Timer vs RM

The clearest difference is rating: Tabata Timer and HIIT Timer at 4.8 against RM's 2.0. Tabata Timer and HIIT Timer also leads on ratings volume (74K vs 1). RM's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. Tabata Timer and HIIT Timer sells 2 in-app purchases, starting at $19.99 per year. RM asks for nothing beyond the download.

Tabata Timer and HIIT Timer holds the better App Store score, 4.8 against 2.0. That said, the two scores are not equally well evidenced: Tabata Timer and HIIT Timer has 74K ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 79% of Tabata Timer and HIIT Timer's written reviews are positive against 100% of RM's, so the app with the better star average is not the one people write more warmly about.

Tabata Timer and HIIT Timer ships an update every 3 weeks, RM monthly. The most recent releases landed on October 15, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Tabata Timer and HIIT Timer | RM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (74K ratings)](https://appshunter.io/ios/app/tabata-timer-and-hiit-timer/id664563975/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/rm-calculator/id1429516288/reviews) |
| Number of ratings | **74K** | 1 |
| Positive reviews | 79.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 27 MB | 22 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Anuj Seth](https://appshunter.io/developer/486885281) | [Ikki Yoshimiya](https://appshunter.io/developer/1109688814) |

## What reviewers say

### Tabata Timer and HIIT Timer

[App page](https://appshunter.io/ios/app/tabata-timer-and-hiit-timer/id664563975)

This interval training app automates your exercise, rest, and cooldown periods for various workouts like Tabata, HIIT, and sprints. It offers customizable intervals, voice guidance, and music integration to enhance focus and workout efficiency. Track your progress with Apple Health integration.

**Highlights:** Automated exercise and rest intervals, Customizable workout presets, Voice and beep guidance, Music integration, Apple Health support, Color-coded display

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Features Subscription | $19.99 | per year |
| Pro Features | $19.99 | one-time |

**What reviewers like**

- 🚀 Versatile and customizable
- 👍 Easy to use interface
- 🎨 Helpful voice prompts and audio cues
- 💪 Effective for HIIT and circuit training
- 🎶 Ability to play music during workouts

**What reviewers complain about**

- 🔒 Limited free version with restrictions
- 🐛 Inconsistent behavior when pausing/resuming
- 🔍 Lack of visual indicators for exercise progress
- 🔊 Loud audio alerts that can't be adjusted
- 🔁 Inability to edit saved workout presets

**Reported bugs**

- App freezing or crashing on some devices
- Purchased pro version not restoring properly
- Inconsistent behavior when switching between apps

**Requested features**

- Ability to label and customize individual intervals
- Option to create more complex interval sequences
- Integration with wearable devices and fitness trackers
- Customizable audio alerts and voice prompts
- Improved workout history and progress tracking


### RM

[App page](https://appshunter.io/ios/app/rm-calculator/id1429516288)

Calculate elevation weights and training times to maximize your efficiency during weight training. Easily switch units by touching them.

**Highlights:** Calculate elevation weights, Calculate training times, Maximize training efficiency, Lean training optimization, Unit switching

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tabata Timer and HIIT Timer free?

Tabata Timer and HIIT Timer is free to download, with in-app purchases available.

### Is RM free?

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

### Which has better reviews, Tabata Timer and HIIT Timer or RM?

Tabata Timer and HIIT Timer is rated higher. Tabata Timer and HIIT Timer averages 4.8 out of 5 from 74K ratings, while RM averages 2.0 from 1 ratings.

### Do Tabata Timer and HIIT Timer or RM have ads?

Tabata Timer and HIIT Timer shows ads; RM does not.

### Which is updated more often, Tabata Timer and HIIT Timer or RM?

Tabata Timer and HIIT Timer ships an update every 3 weeks, and RM monthly. Most recently, Tabata Timer and HIIT Timer was updated on October 15, 2026 and RM on September 28, 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.*