# Seconds Interval Timer vs Group Fitness Class Timer

The clearest difference is update cadence: Group Fitness Class Timer at every 2 days against Seconds Interval Timer's monthly. Group Fitness Class Timer also leads on rating (5.0 vs 4.7). Seconds Interval Timer's advantage is ratings volume (24K vs 1) and iOS requirement (18.0 vs 26.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Seconds Interval Timer sells 1 one-off in-app purchase 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.

Group Fitness Class Timer holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Seconds Interval Timer has 24K ratings behind it against 1, so its average is the more settled of the two.

Seconds Interval Timer ships an update monthly, Group Fitness Class Timer every 2 days. The most recent releases landed on October 15, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Seconds Interval Timer | Group Fitness Class Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (24K ratings)](https://appshunter.io/ios/app/seconds-interval-timer/id475816966/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/group-fitness-class-timer/id6762097940/reviews)** |
| Number of ratings | **24K** | 1 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 95 MB | 30 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Runloop Ltd](https://appshunter.io/developer/325563420) | [Paul Krause](https://appshunter.io/developer/1892893652) |

## What reviewers say

### Seconds Interval Timer

[App page](https://appshunter.io/ios/app/seconds-interval-timer/id475816966)

This app provides a versatile interval timer for various workout types like Tabata, HIIT, and circuit training. It features a clear, full-screen display, customizable alerts, and background operation. Users can also utilize a stopwatch and countdown timer, with integration for Apple Health.

**Highlights:** Full-screen colored display, Templates for HIIT, Tabata, Circuit Training, Voice and audio alerts, Music assignment per interval, Background operation, Apple Health integration, Stopwatch and countdown timer

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advanced Version | $7.99 | one-time |

**What reviewers like**

- 🚀 Great workout app
- 👍 Customizable and user-friendly
- 🔒 Reliable and stable
- 💡 Versatile for various workouts
- 👍 Easy to create and edit timers

**What reviewers complain about**

- 🐛 Occasional audio issues
- 🔍 Limited Apple Watch integration
- 💰 Paid version required for full functionality
- 🕰️ Time-consuming to set up complex workouts

**Reported bugs**

- Timer sometimes stops working unexpectedly
- Issues with restoring purchases on new devices

**Requested features**

- Ability to change beep/alert volume independently
- Option to delay transition between intervals
- Sync workouts across devices
- More preset workout templates
- Heart rate monitoring integration


### 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 Seconds Interval Timer free?

Seconds Interval 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.

### Which has better reviews, Seconds Interval Timer or Group Fitness Class Timer?

Group Fitness Class Timer is rated higher. Seconds Interval Timer averages 4.7 out of 5 from 24K ratings, while Group Fitness Class Timer averages 5.0 from 1 ratings.

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

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

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

Seconds Interval Timer ships an update monthly, and Group Fitness Class Timer every 2 days. Most recently, Seconds Interval Timer was updated on October 15, 2026 and Group Fitness Class Timer 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.*