# Intervals Pro vs Interval(x)

The clearest difference is in-app purchases: Interval(x) at none against Intervals Pro's 8. Interval(x) also leads on rating (5.0 vs 4.8). Intervals Pro's advantage is ratings volume (14K vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Intervals Pro sells 8 in-app purchases, starting at $2.99 per month. Interval(x) asks for nothing beyond the download.

Interval(x) holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Intervals Pro has 14K ratings behind it against 1, so its average is the more settled of the two.

Intervals Pro ships an update every 8 days, Interval(x) every 10 days. The most recent releases landed on October 12, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Intervals Pro | Interval(x) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (14K ratings)](https://appshunter.io/ios/app/intervals-pro-hiit-timer/id957586938/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/intervalx/id6739734149/reviews)** |
| Number of ratings | **14K** | 1 |
| Positive reviews | 84.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 10 days |
| Monetization | Free with in-app purchases | **Free** |
| Size | 69 MB | 2 MB |
| Requires iOS | **17.5** | 18.1 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Intervals, LLC](https://appshunter.io/developer/331071662) | [ShapeHaven Innovations LLC](https://appshunter.io/developer/1747127977) |

## What reviewers say

### 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


### Interval(x)

[App page](https://appshunter.io/ios/app/intervalx/id6739734149)

An open-source interval timer designed for precision and privacy. Configure work and rest periods with millisecond accuracy for training or daily routines. It offers a transparent, data-free experience for users who value control and simplicity.

**Highlights:** Open Source Transparency, Zero Data Collection, Millisecond Interval Precision, Customizable Work/Rest Periods, Lightweight and Power-Efficient, Privacy-First Design

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Intervals Pro free?

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

### Is Interval(x) free?

Interval(x) is free to download, with no in-app purchases.

### Which has better reviews, Intervals Pro or Interval(x)?

Interval(x) is rated higher. Intervals Pro averages 4.8 out of 5 from 14K ratings, while Interval(x) averages 5.0 from 1 ratings.

### Do Intervals Pro or Interval(x) have ads?

Neither Intervals Pro nor Interval(x) shows ads.

### Which is updated more often, Intervals Pro or Interval(x)?

Intervals Pro ships an update every 8 days, and Interval(x) every 10 days. Most recently, Intervals Pro was updated on October 12, 2026 and Interval(x) on October 6, 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.*