# Seconds Pro Interval Timer vs Group Fitness Class Timer

The clearest difference is price: Group Fitness Class Timer at Free against Seconds Pro Interval Timer's $7.99. Group Fitness Class Timer also leads on update cadence (every 2 days vs fortnightly) and rating (5.0 vs 4.8). Seconds Pro Interval Timer's advantage is in-app purchases (none vs 2) and ratings volume (12K vs 1). On ads and device support there is nothing between them.

Group Fitness Class Timer is free to download; Seconds Pro Interval Timer costs $7.99 up front. Group Fitness Class Timer sells 2 in-app purchases, starting at $4.99 per month. Seconds Pro Interval Timer asks for nothing beyond the download.

Group Fitness Class Timer holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Seconds Pro Interval Timer has 12K ratings behind it against 1, so its average is the more settled of the two.

Seconds Pro Interval Timer ships an update fortnightly, 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 Pro Interval Timer | Group Fitness Class Timer |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | [4.8 (12K ratings)](https://appshunter.io/ios/app/seconds-pro-interval-timer/id363978811/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/group-fitness-class-timer/id6762097940/reviews)** |
| Number of ratings | **12K** | 1 |
| Positive reviews | 79.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#9** | — |
| Size | 94 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 Pro Interval Timer

[App page](https://appshunter.io/ios/app/seconds-pro-interval-timer/id363978811)

**Currently charting:** #9 Top Paid · Health & Fitness, #93 Top Paid (US App Store)

This interval timer app is designed for high-intensity interval training (HIIT), Tabata, and circuit training workouts. It features a large, color-coded display, customizable interval names, and background operation. It also integrates with Apple Health to track your fitness data.

**Highlights:** Full screen colored display, Templates for HIIT, Tabata, Circuit Training, Speaks interval names and provides warnings, Assign music per interval, Runs in background, Share interval timers, Apple Health integration

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

**In-app purchases:** none

**What reviewers like**

- ⭐ Great updates
- 🤖 Amazing voice prompts
- 👍 Easy to use
- 🎨 Highly customizable
- 🔧 Versatile for various workouts

**What reviewers complain about**

- 🐛 Occasional bugs and glitches
- 🔌 Music volume issues
- 🔍 Complicated setup for some features
- 🌐 Sync/sharing issues between devices
- 🔇 Inconsistent audio cues

**Reported bugs**

- Intervals randomly pausing or skipping
- Music volume issues when launching the app
- Inconsistent audio cues and countdown
- Sync issues between devices

**Requested features**

- Ability to lock Apple Watch screen
- Option to see more than just the next exercise
- Fractional time settings (e.g. 7.74 seconds)
- More voice/audio customization options
- Improved sync between iPhone and iPad


### 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 Pro Interval Timer free?

Seconds Pro Interval Timer costs $7.99, with no in-app purchases.

### Is Group Fitness Class Timer free?

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

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

Group Fitness Class Timer is rated higher. Seconds Pro Interval Timer averages 4.8 out of 5 from 12K ratings, while Group Fitness Class Timer averages 5.0 from 1 ratings.

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

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

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

Seconds Pro Interval Timer ships an update fortnightly, and Group Fitness Class Timer every 2 days. Most recently, Seconds Pro 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.*