# Intervals Pro vs i

The clearest difference is review sentiment: Intervals Pro at 84% against i's 43%. Intervals Pro also leads on ads (none vs shown) and ratings volume (14K vs 1). i's advantage is rating (5.0 vs 4.8) and iOS requirement (13.6 vs 17.5). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Intervals Pro sells 8 in-app purchases, starting at $2.99 per month and i sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

i 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. Written reviews complicate that: 84% of Intervals Pro's written reviews are positive against 43% of i's, so the app with the better star average is not the one people write more warmly about.

Intervals Pro ships an update every 8 days, i every 9 days. The most recent releases landed on September 26, 2026 and August 20, 2026 respectively.

## The numbers

| Metric | Intervals Pro | i |
| --- | --- | --- |
| 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/i-timer-interval-timer-app/id1441245127/reviews)** |
| Number of ratings | **14K** | 1 |
| Positive reviews | **84.4% of reviews** | 42.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 8 days** | Every 9 days |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 69 MB | 8 MB |
| Requires iOS | 17.5 | **13.6** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Intervals, LLC](https://appshunter.io/developer/331071662) | [Foodmenu.world Inc.](https://appshunter.io/developer/1438351063) |

## 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


### i

[App page](https://appshunter.io/ios/app/i-timer-interval-timer-app/id1441245127)

This interval timer app allows for customizable repeat and interval settings. It includes features to measure elapsed time after stopping, mute functionality, and a skip option to advance timers.

**Highlights:** Repeat timer function, Interval time settings, Elapsed time measurement, Mute function, Skip timer function

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| full_version | $0.99 | one-time |


## Frequently asked questions

### Is Intervals Pro free?

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

### Is i free?

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

### Which has better reviews, Intervals Pro or i?

i is rated higher. Intervals Pro averages 4.8 out of 5 from 14K ratings, while i averages 5.0 from 1 ratings.

### Do Intervals Pro or i have ads?

i shows ads; Intervals Pro does not.

### Which is updated more often, Intervals Pro or i?

Intervals Pro ships an update every 8 days, and i every 9 days. Most recently, Intervals Pro was updated on September 26, 2026 and i on August 20, 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.*