# RepZero vs HIIT Workout Timer

The clearest difference is update cadence: RepZero at every 2 weeks against HIIT Workout Timer's monthly. RepZero also leads on device support (3 vs 1). HIIT Workout Timer's advantage is iOS requirement (17.0 vs 26.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. RepZero sells 2 in-app purchases, starting at $1.99 per month and HIIT Workout Timer sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

RepZero ships an update every 2 weeks, HIIT Workout Timer monthly. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | RepZero | HIIT Workout Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/repzero-weight-lifting-log/id6752782417/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Freemium | — |
| Size | 150 MB | 11 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Dark Matter AI Labs LLC](https://appshunter.io/developer/1828240281) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### RepZero

[App page](https://appshunter.io/ios/app/repzero-weight-lifting-log/id6752782417)

This app helps you track your weightlifting progress with detailed logging and an AI coach. It provides insights into your strength, records, and recovery, all accessible on your iPhone and Apple Watch.

**Highlights:** Effortless set logging with automatic rest timers, Plate calculator for barbell and machine exercises, Apple Watch integration for phone-free workouts, AI coach for personalized training advice, Progress tracking with PRs, volume, and trends, Customizable workout programs and routines, Muscle recovery and strength level insights

**Features:** macOS Compatibility, Apple Watch app, iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RepZero Pro Monthly | $1.99 | per month |
| RepZero Pro Yearly | $19.99 | per year |


### HIIT Workout Timer

[App page](https://appshunter.io/ios/app/hiit-workout-timer-tabata/id6772269676)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Yearly | $14.99 | per year |
| Lifetime Pro | $29.99 | one-time |


## Frequently asked questions

### Is RepZero free?

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

### Is HIIT Workout Timer free?

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

### Do RepZero or HIIT Workout Timer have ads?

Neither RepZero nor HIIT Workout Timer shows ads.

### Which is updated more often, RepZero or HIIT Workout Timer?

RepZero ships an update every 2 weeks, and HIIT Workout Timer monthly. Most recently, RepZero was updated on October 30, 2026 and HIIT Workout Timer on October 25, 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.*