# Simple Interval Timer vs Intervals Pro

The clearest difference is rating: Intervals Pro at 4.8 against Simple Interval Timer's 4.0. Intervals Pro also leads on review sentiment (84% vs 50%) and ratings volume (14K vs 2). Simple Interval Timer's advantage is in-app purchases (none vs 8) and iOS requirement (13.5 vs 17.5). 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. Simple Interval Timer asks for nothing beyond the download.

Intervals Pro holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Intervals Pro has 14K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 50% of Simple Interval Timer's written reviews are positive against 84% of Intervals Pro's.

Simple Interval Timer ships an update every 5 days, Intervals Pro every 8 days. The most recent releases landed on October 1, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Simple Interval Timer | Intervals Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/simple-interval-timer-sit/id630361167/reviews) | **[4.8 (14K ratings)](https://appshunter.io/ios/app/intervals-pro-hiit-timer/id957586938/reviews)** |
| Number of ratings | 2 | **14K** |
| Positive reviews | 50.0% of reviews | **84.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 8 days |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 69 MB |
| Requires iOS | **13.5** | 17.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [DES Productions](https://appshunter.io/developer/541744954) | [Intervals, LLC](https://appshunter.io/developer/331071662) |

## What reviewers say

### Simple Interval Timer

[App page](https://appshunter.io/ios/app/simple-interval-timer-sit/id630361167)

This app provides a customizable interval timer for various training methods like HIIT, Tabata, and boxing. Structure your workouts to achieve your fitness goals with configurable sets and timers.

**Highlights:** Customizable interval sets, Configurable workout values, Supports HIIT, Tabata, boxing, sprints, Workout structure and discipline, Achieve fitness goals

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Simple Interval Timer free?

Simple Interval Timer is free to download, with no in-app purchases.

### Is Intervals Pro free?

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

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

Intervals Pro is rated higher. Simple Interval Timer averages 4.0 out of 5 from 2 ratings, while Intervals Pro averages 4.8 from 14K ratings.

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

Neither Simple Interval Timer nor Intervals Pro shows ads.

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

Simple Interval Timer ships an update every 5 days, and Intervals Pro every 8 days. Most recently, Simple Interval Timer was updated on October 1, 2026 and Intervals Pro on October 12, 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.*