# Interval Timer vs Interval Timer by STRNTH

The clearest difference is update cadence: Interval Timer by STRNTH at every 10 days against Interval Timer's every 2 months. Interval Timer's advantage is iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Interval Timer sells 1 one-off in-app purchase and Interval Timer by STRNTH sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Interval Timer ships an update every 2 months, Interval Timer by STRNTH every 10 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Interval Timer | Interval Timer by STRNTH |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (250 ratings)](https://appshunter.io/ios/app/interval-timer-hiit-workout/id1596127692/reviews)** | — |
| Number of ratings | **250** | — |
| Positive reviews | 84.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 12 MB | 55 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, iPod, Apple Watch |
| Age rating | 4+ | 12+ |
| Developer | [Yosyp Hameliak](https://appshunter.io/developer/895008826) | [Next Big Leap Ltd](https://appshunter.io/developer/369344938) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-hiit-workout/id1596127692)

This interval timer is designed for HIIT and interval training. Easily set work and rest periods, sets, and rounds to guide your workouts. It supports background operation and music playback, with an Apple Watch companion app for heart rate monitoring.

**Highlights:** Customizable work and rest periods, Set number of sets and rounds, Background operation support, Music playback compatibility, Apple Watch integration, Heart rate monitoring (Apple Watch)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |

**What reviewers like**

- 👍 Simple and intuitive interface
- 🚀 Efficient for workouts
- 💰 One-time purchase option
- ✨ Clean and uncluttered design
- 💪 Great for various training types

**What reviewers complain about**

- 🔇 Lack of customizable sounds
- 🚫 Ads can be intrusive
- ⚠️ App pauses when phone is locked
- 🗣️ Voice can be monotonous
- 🔄 Inconsistent sound notifications

**Reported bugs**

- App pauses when phone is locked
- Sound notifications are inconsistent
- App doesn't run in background
- Watch app not opening or syncing
- In-app purchase issues

**Requested features**

- Option for different/upbeat voice
- Ability to reorder saved timers
- Larger font size option
- Vibrate option
- Naming individual sets/exercises


### 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 Interval Timer free?

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

### Is Interval Timer by STRNTH free?

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

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

Both Interval Timer and Interval Timer by STRNTH show ads.

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

Interval Timer ships an update every 2 months, and Interval Timer by STRNTH every 10 days. Most recently, Interval Timer was updated on November 3, 2026 and Interval Timer by STRNTH on October 31, 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.*