# Gymboss Interval Timer vs Intervals Pro

Gymboss Interval Timer and Intervals Pro both sit at 4.7 stars, but that hides the real split: 84% of Intervals Pro's written reviews are positive against 36% of Gymboss Interval Timer's. Intervals Pro also leads on update cadence (every 8 days vs every 5 weeks) and ratings volume (14K vs 797). Gymboss Interval Timer's advantage is iOS requirement (15.0 vs 17.5). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Gymboss Interval Timer sells 3 in-app purchases, starting at $1.99 per year and Intervals Pro sells 8 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Gymboss Interval Timer against 4.8 for Intervals Pro. That said, the two scores are not equally well evidenced: Intervals Pro has 14K ratings behind it against 797, so its average is the more settled of the two. Written reviews are what separate them: 36% of Gymboss Interval Timer's written reviews are positive against 84% of Intervals Pro's.

Gymboss Interval Timer ships an update every 5 weeks, Intervals Pro every 8 days. Both last shipped on September 24, 2026.

## The numbers

| Metric | Gymboss Interval Timer | Intervals Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (797 ratings)](https://appshunter.io/ios/app/gymboss-interval-timer/id500887448/reviews) | **[4.8 (14K ratings)](https://appshunter.io/ios/app/intervals-pro-hiit-timer/id957586938/reviews)** |
| Number of ratings | 797 | **14K** |
| Positive reviews | 36.4% of reviews | **84.4% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 8 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 23 MB | 69 MB |
| Requires iOS | **15.0** | 17.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Gymboss LLC](https://appshunter.io/developer/894157662) | [Intervals, LLC](https://appshunter.io/developer/331071662) |

## What reviewers say

### Gymboss Interval Timer

[App page](https://appshunter.io/ios/app/gymboss-interval-timer/id500887448)

This app provides a customizable interval timer for various workouts, allowing users to set single or multiple work and rest periods. It offers extensive customization options for alarms, program saving, and display, ensuring a tailored timing experience for any fitness routine.

**Highlights:** Programmable interval timer, Unlimited intervals and rounds, Save and manage unlimited programs, Visual, audible, and vibrate alarms, Music access and dimming, Customizable display and background

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gymboss Premium Yearly | $1.99 | per year |
| Remove Ads | $0.99 | one-time |
| Sound and Color Bundle | $0.99 | one-time |

**What reviewers like**

- 🚀 Simple yet effective
- 🚀 Perfect gym partner
- 🚀 Grad App
- 🚀 Great
- 🚀 Simple easy to plan and workout

**What reviewers complain about**

- 🐛 Clear data
- 🐛 Glitchy
- 🐛 Another buggy update
- 🐛 Landscape / portrait bugs
- 🐛 Sagging under bugs

**Reported bugs**

- Timer no longer beeps when screen is locked or app is in background
- Intervals disappear or get shuffled after updates
- Unable to save new workouts
- All workout sounds have gone
- Crashes when trying to edit intervals

**Requested features**

- Verbal prompts like a countdown "3-2-1 Go!" and "3-2-1 Rest"
- Ability to lock the screen
- Option to see what's coming next
- Workout block of 60/30/30 rather than just high and low
- Ability to start from partway through the sequence


### Intervals Pro

[App page](https://appshunter.io/ios/app/intervals-pro-hiit-timer/id957586938)

Create and follow custom interval training routines for various fitness activities. This app offers extensive customization for intervals, alerts, and goals, with seamless integration for Apple Watch and Apple Health.

**Highlights:** Highly customizable intervals (time/distance), Spoken interval names and prompts, Standalone Apple Watch workouts, Workout history with Apple Health, Home screen widgets for quick launch, Bluetooth heart rate monitor support, Siri Shortcuts integration

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Membership | $2.99 | per month |
| Yearly Membership | $19.99 | per year |
| Generous Tip | $0.99 | one-time |
| Awesome Tip | $1.99 | one-time |
| Massive Tip | $4.99 | one-time |
| Amazing Tip | $9.99 | one-time |
| Intervals Pro (Legacy) | $69.99 | one-time |
| Lifetime Access | $69.99 | one-time |

**What reviewers like**

- 👍 Customizable timers and intervals
- 🚀 Seamless Apple Watch integration
- 💪 Helps with fitness goals and training
- 🔍 Detailed workout tracking and analytics
- 🎨 Intuitive and user-friendly interface

**What reviewers complain about**

- 🐛 Occasional sync and connectivity issues
- 🔍 Lack of clear guidance and documentation
- 💰 Paid version required for full functionality

**Reported bugs**

- Workout data not syncing correctly
- App crashes or freezes on certain devices

**Requested features**

- More customization options for interval displays
- Ability to batch delete or manage workout history
- Integration with more third-party fitness apps


## Frequently asked questions

### Is Gymboss Interval Timer free?

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

### Is Intervals Pro free?

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

### Which has better reviews, Gymboss Interval Timer or Intervals Pro?

Intervals Pro is rated higher. Gymboss Interval Timer averages 4.7 out of 5 from 797 ratings, while Intervals Pro averages 4.8 from 14K ratings.

### Do Gymboss Interval Timer or Intervals Pro have ads?

Neither Gymboss Interval Timer nor Intervals Pro shows ads.

### Which is updated more often, Gymboss Interval Timer or Intervals Pro?

Gymboss Interval Timer ships an update every 5 weeks, and Intervals Pro every 8 days. Most recently, Gymboss Interval Timer was updated on September 24, 2026 and Intervals Pro on September 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*