# Interval Timer by STRNTH vs Interval Trainr

The clearest difference is in-app purchases: Interval Trainr at none against Interval Timer by STRNTH's 1. Interval Trainr also leads on ads (none vs shown). Interval Timer by STRNTH's advantage is update cadence (every 10 days vs monthly) and device support (4 vs 2). On price there is nothing between them.

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

Interval Timer by STRNTH ships an update every 10 days, Interval Trainr monthly. The most recent releases landed on October 5, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Interval Timer by STRNTH | Interval Trainr |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Monthly |
| Size | 55 MB | 30 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Next Big Leap Ltd](https://appshunter.io/developer/369344938) | [Timothy Maloney](https://appshunter.io/developer/6784841580) |

## What reviewers say

### 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 |


### Interval Trainr

[App page](https://appshunter.io/ios/app/interval-trainr/id6806787949)

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

**In-app purchases:** none


## Frequently asked questions

### Is Interval Timer by STRNTH free?

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

### Is Interval Trainr free?

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

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

Interval Timer by STRNTH shows ads; Interval Trainr does not.

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

Interval Timer by STRNTH ships an update every 10 days, and Interval Trainr monthly. Most recently, Interval Timer by STRNTH was updated on October 5, 2026 and Interval Trainr on October 9, 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.*