# OpenHIIT vs Ares

The clearest difference is in-app purchases: OpenHIIT at none against Ares's 3. OpenHIIT also leads on iOS requirement (13.0 vs 18.6). Ares's advantage is ratings volume (24 vs 8). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Ares sells 3 in-app purchases, starting at $1.99 per month. OpenHIIT asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for OpenHIIT against 5.0 for Ares. Both are backed by a comparable volume of ratings — 8 and 24 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

OpenHIIT ships an update monthly, Ares fortnightly. The most recent releases landed on August 14, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | OpenHIIT | Ares |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (8 ratings)](https://appshunter.io/ios/app/openhiit/id6459617819/reviews) | [5.0 (24 ratings)](https://appshunter.io/ios/app/ares-workout-interval-timer/id6743498963/reviews) |
| Number of ratings | 8 | **24** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free | Free |
| Size | 26 MB | 57 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Abigail Mabe](https://appshunter.io/developer/1701885217) | [Krzysztof Orlowski](https://appshunter.io/developer/1803214419) |

## What reviewers say

### OpenHIIT

[App page](https://appshunter.io/ios/app/openhiit/id6459617819)

This open-source interval timer app helps optimize various activities like workouts, work sprints, and study sessions. It offers customizable timing, precise controls, and clear auditory and visual alerts to keep you motivated and on track. Users can also join a collaborative community to contribute to its development.

**Highlights:** Customizable interval timing, Precise and user-friendly controls, Auditory and visual alerts, Open-source community collaboration, Ad-free experience

**Features:** macOS Compatibility

**In-app purchases:** none


### Ares

[App page](https://appshunter.io/ios/app/ares-workout-interval-timer/id6743498963)

This app provides a customizable interval timer for various workouts like HIIT, Tabata, yoga, and stretching. It features real-time heart rate zone tracking with Apple Watch integration and allows users to create and save unlimited training sessions and workout sets. Voice cues guide users through workouts, ensuring focus remains on exercise.

**Highlights:** Customizable interval timer, HIIT, Tabata, Yoga, Stretch modes, Apple Watch control and heart rate zones, Unlimited training session saving, Workout set creation, Voice and sound cues, Training history tracking

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ares Plus | $1.99 | per month |
| Ares Plus | $9.99 | per year |
| Ares Plus Forever | $19.99 | one-time |


## Frequently asked questions

### Is OpenHIIT free?

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

### Is Ares free?

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

### Which has better reviews, OpenHIIT or Ares?

OpenHIIT and Ares are both rated 5.0 out of 5 on the App Store, from 8 and 24 ratings respectively.

### Do OpenHIIT or Ares have ads?

Neither OpenHIIT nor Ares shows ads.

### Which is updated more often, OpenHIIT or Ares?

OpenHIIT ships an update monthly, and Ares fortnightly. Most recently, OpenHIIT was updated on August 14, 2026 and Ares on September 21, 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.*