# Round vs Interval Timer by STRNTH

The clearest difference is in-app purchases: Round at none against Interval Timer by STRNTH's 1. Round also leads on ads (none vs shown). Interval Timer by STRNTH's advantage is iOS requirement (15.1 vs 17.2). On price, update cadence and device support there is nothing between them.

Both are free to download. Interval Timer by STRNTH sells 1 one-off in-app purchase. Round asks for nothing beyond the download.

Round ships an update weekly, Interval Timer by STRNTH every 10 days. The most recent releases landed on October 10, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Round | Interval Timer by STRNTH |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/round-hiit-workout-timer/id6757195833/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 10 days |
| Monetization | Free | — |
| Size | 35 MB | 55 MB |
| Requires iOS | 17.2 | **15.1** |
| Devices | iPhone, iPad, Apple Watch | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [Ryosuke Nakayama](https://appshunter.io/developer/1865209768) | [Next Big Leap Ltd](https://appshunter.io/developer/369344938) |

## What reviewers say

### Round

[App page](https://appshunter.io/ios/app/round-hiit-workout-timer/id6757195833)

This interval timer is designed for high-intensity interval training (HIIT), Tabata, and circuit workouts. It allows users to create custom routines with multiple exercises and track their progress. The app offers haptic alerts and can be controlled from an Apple Watch.

**Highlights:** Customizable interval routines, HIIT, Tabata, and circuit training support, Apple Watch control, Haptic alerts for round changes, Visual arc timer, Workout progress tracking, Apple Health integration

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

**In-app purchases:** none


### Interval Timer by STRNTH

[App page](https://appshunter.io/ios/app/interval-timer-by-strnth/id6787253056)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $9.99 | one-time |


## Frequently asked questions

### Is Round free?

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

### Is Interval Timer by STRNTH free?

Interval Timer by STRNTH is free to download, with in-app purchases available.

### Do Round or Interval Timer by STRNTH have ads?

Interval Timer by STRNTH shows ads; Round does not.

### Which is updated more often, Round or Interval Timer by STRNTH?

Round ships an update weekly, and Interval Timer by STRNTH every 10 days. Most recently, Round was updated on October 10, 2026 and Interval Timer by STRNTH on October 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*