# Interval Timer by STRNTH vs Strongbell

The clearest difference is ads: Strongbell at none against Interval Timer by STRNTH's shown. Strongbell also leads on update cadence (daily vs every 3 weeks). Interval Timer by STRNTH's advantage is device support (4 vs 1) and iOS requirement (15.1 vs 18.0). On price and in-app purchases there is nothing between them.

Both are free to download. Interval Timer by STRNTH sells 1 one-off in-app purchase and Strongbell sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Interval Timer by STRNTH ships an update every 3 weeks, Strongbell daily. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Interval Timer by STRNTH | Strongbell |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Daily** |
| Size | 56 MB | 16 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Next Big Leap Ltd](https://appshunter.io/developer/369344938) | [druidori s.r.o](https://appshunter.io/developer/1434683139) |

## 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 |


### Strongbell

[App page](https://appshunter.io/ios/app/strongbell-kettlebell-workout/id6817673096)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Strongbell Pro Monthly | $4.99 | per month |
| Strongbell Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is Interval Timer by STRNTH free?

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

### Is Strongbell free?

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

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

Interval Timer by STRNTH shows ads; Strongbell does not.

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

Interval Timer by STRNTH ships an update every 3 weeks, and Strongbell daily. Most recently, Interval Timer by STRNTH was updated on November 5, 2026 and Strongbell on November 6, 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.*