# Round Timer Pro vs Modern Interval Workout Timer

The clearest difference is rating: Round Timer Pro at 5.0 against Modern Interval Workout Timer's 3.0. Round Timer Pro also leads on in-app purchases (none vs 3) and ratings volume (223 vs 1). Modern Interval Workout Timer's advantage is update cadence (every 4 days vs every 6 months). On price, review sentiment and ads there is nothing between them.

Both are free to download. Modern Interval Workout Timer sells 3 in-app purchases, starting at $0.99 per month. Round Timer Pro asks for nothing beyond the download.

Round Timer Pro holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: Round Timer Pro has 223 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 97% of Round Timer Pro's written reviews are positive against 100% of Modern Interval Workout Timer's, so the app with the better star average is not the one people write more warmly about.

Round Timer Pro ships an update every 6 months, Modern Interval Workout Timer every 4 days. The most recent releases landed on October 11, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Round Timer Pro | Modern Interval Workout Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (223 ratings)](https://appshunter.io/ios/app/round-timer-pro-boxing-timer/id1598298292/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/modern-interval-workout-timer/id6733239641/reviews) |
| Number of ratings | **223** | 1 |
| Positive reviews | 97.2% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 days** |
| Monetization | **Free** | Freemium |
| Size | 24 MB | 9 MB |
| Requires iOS | **13.4** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Solid Solutions OU](https://appshunter.io/developer/1523407502) | [Marc Gauthier](https://appshunter.io/developer/834944348) |

## What reviewers say

### Round Timer Pro

[App page](https://appshunter.io/ios/app/round-timer-pro-boxing-timer/id1598298292)

This app provides a highly customizable round timer for combat sports and interval training. It features a unique reaction training mode to simulate unpredictable fight scenarios and allows for precise control over workout structure and signals.

**Highlights:** Customizable rounds, Reaction Training Mode, Intra-round signals, Authentic sound cues, Visual cues and color indicators, Split rounds into segments

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Efficient and effective
- ✨ No ads
- 🤫 Runs in the background
- 🎶 Doesn't hijack music apps

**What reviewers complain about**

- 🔄 Doesn't save settings

**Requested features**

- Ability to save workout settings


### Modern Interval Workout Timer

[App page](https://appshunter.io/ios/app/modern-interval-workout-timer/id6733239641)

This versatile timer supports HIIT, Tabata, circuit training, and combat sports like boxing. Customize visuals, sounds, and presets for a personalized workout experience. Track and replay past sessions with a clean, ad-free interface.

**Highlights:** Interval and regular timer modes, Customizable themes and sounds, Large, bold visuals, Pre-made and saved presets, Workout log and replay, Ad-free experience

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (monthly subscription) | $0.99 | per month |
| Premium (yearly subscription) | $4.99 | per year |
| Lifetime premium | $14.99 | one-time |


## Frequently asked questions

### Is Round Timer Pro free?

Round Timer Pro is free to download, with no in-app purchases.

### Is Modern Interval Workout Timer free?

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

### Which has better reviews, Round Timer Pro or Modern Interval Workout Timer?

Round Timer Pro is rated higher. Round Timer Pro averages 5.0 out of 5 from 223 ratings, while Modern Interval Workout Timer averages 3.0 from 1 ratings.

### Do Round Timer Pro or Modern Interval Workout Timer have ads?

Neither Round Timer Pro nor Modern Interval Workout Timer shows ads.

### Which is updated more often, Round Timer Pro or Modern Interval Workout Timer?

Round Timer Pro ships an update every 6 months, and Modern Interval Workout Timer every 4 days. Most recently, Round Timer Pro was updated on October 11, 2026 and Modern Interval Workout Timer on October 12, 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.*