# Intervals Pro vs Sprint Eight

The clearest difference is rating: Intervals Pro at 4.8 against Sprint Eight's 4.3. Intervals Pro also leads on ratings volume (14K vs 10) and review sentiment (84% vs 60%). Sprint Eight's advantage is in-app purchases (none vs 8) and iOS requirement (10.3 vs 17.5). On price, 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. Sprint Eight asks for nothing beyond the download.

Intervals Pro holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Intervals Pro has 14K ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 84% of Intervals Pro's written reviews are positive against 60% of Sprint Eight's.

Intervals Pro ships an update every 8 days, Sprint Eight every 6 weeks. The most recent releases landed on October 16, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Intervals Pro | Sprint Eight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (14K ratings)](https://appshunter.io/ios/app/intervals-pro-hiit-timer/id957586938/reviews)** | [4.3 (10 ratings)](https://appshunter.io/ios/app/sprint-eight/id1418761124/reviews) |
| Number of ratings | **14K** | 10 |
| Positive reviews | **84.3% of reviews** | 60.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 6 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 69 MB | 21 MB |
| Requires iOS | 17.5 | **10.3** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Intervals, LLC](https://appshunter.io/developer/331071662) | [Brad McAnalley](https://appshunter.io/developer/1088438425) |

## 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


### Sprint Eight

[App page](https://appshunter.io/ios/app/sprint-eight/id1418761124)

This app guides you through a high-intensity interval training workout designed for maximum calorie burn in minimal time. It provides timed intervals for sprinting and resting, allowing you to perform the exercise without specialized equipment.

**Highlights:** High Intensity Interval Training (HIIT), Maximum calorie burn, No extra equipment needed, Timed sprint and rest intervals, 30-second sprint / 90-second rest cycle

**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 Sprint Eight free?

Sprint Eight is free to download, with no in-app purchases.

### Which has better reviews, Intervals Pro or Sprint Eight?

Intervals Pro is rated higher. Intervals Pro averages 4.8 out of 5 from 14K ratings, while Sprint Eight averages 4.3 from 10 ratings.

### Do Intervals Pro or Sprint Eight have ads?

Neither Intervals Pro nor Sprint Eight shows ads.

### Which is updated more often, Intervals Pro or Sprint Eight?

Intervals Pro ships an update every 8 days, and Sprint Eight every 6 weeks. Most recently, Intervals Pro was updated on October 16, 2026 and Sprint Eight on September 16, 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.*