# Interval Workout Timer vs Group Fitness Class Timer

The clearest difference is iOS requirement: Interval Workout Timer at 15.1 against Group Fitness Class Timer's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Interval Workout Timer sells 3 in-app purchases, starting at $2.49 per month and Group Fitness Class Timer sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on September 20, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Interval Workout Timer | Group Fitness Class Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/group-fitness-class-timer/id6762097940/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | Every 3 days |
| Monetization | — | Free with in-app purchases |
| Size | 50 MB | 29 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [YU HUA CHEOK](https://appshunter.io/developer/1889741662) | [Paul Krause](https://appshunter.io/developer/1892893652) |

## What reviewers say

### Interval Workout Timer

[App page](https://appshunter.io/ios/app/interval-workout-timer-block/id6761449890)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Block Timer Pro | $2.49 | per month |
| Block Timer Pro | $11.99 | per year |
| Lifetime Premium | $31.99 | one-time |


### Group Fitness Class Timer

[App page](https://appshunter.io/ios/app/group-fitness-class-timer/id6762097940)

This app helps group fitness instructors plan and lead classes. It combines class structuring, an interval timer, and an exercise library into one tool. Instructors can create custom routines, track time, and even integrate music.

**Highlights:** Class planning and structuring, Interval timer with auto-advance, Library of 800+ exercises, Music integration, Apple Watch companion app, Custom exercise creation

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Group Fit Studio Monthly | $4.99 | per month |
| Group Fit Studio Yearly | $29.99 | per year |


## Frequently asked questions

### Is Interval Workout Timer free?

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

### Is Group Fitness Class Timer free?

Group Fitness Class Timer is free to download, with in-app purchases available.

### Do Interval Workout Timer or Group Fitness Class Timer have ads?

Neither Interval Workout Timer nor Group Fitness Class Timer shows ads.

### Which is updated more often, Interval Workout Timer or Group Fitness Class Timer?

Interval Workout Timer ships an update every 3 days, and Group Fitness Class Timer every 3 days. Most recently, Interval Workout Timer was updated on September 20, 2026 and Group Fitness Class Timer on September 18, 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.*