# GRIT vs Interval Timer by STRNTH

The clearest difference is in-app purchases: GRIT at none against Interval Timer by STRNTH's 1. GRIT also leads on ads (none vs shown) and update cadence (every 2 days vs every 10 days). Interval Timer by STRNTH's advantage is device support (4 vs 2) and iOS requirement (15.1 vs 18.0). On price there is nothing between them.

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

GRIT ships an update every 2 days, Interval Timer by STRNTH every 10 days. The most recent releases landed on October 13, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | GRIT | Interval Timer by STRNTH |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 10 days |
| Size | 17 MB | 55 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [Andrew Dunn](https://appshunter.io/developer/1895547129) | [Next Big Leap Ltd](https://appshunter.io/developer/369344938) |

## What reviewers say

### GRIT

[App page](https://appshunter.io/ios/app/grit-workout-and-wod-timer/id6782134881)

**Features:** macOS Compatibility, 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 GRIT free?

GRIT 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 GRIT or Interval Timer by STRNTH have ads?

Interval Timer by STRNTH shows ads; GRIT does not.

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

GRIT ships an update every 2 days, and Interval Timer by STRNTH every 10 days. Most recently, GRIT was updated on October 13, 2026 and Interval Timer by STRNTH on October 5, 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.*