# Intervals Pro vs Ramp4x4

The clearest difference is ratings volume: Intervals Pro at 14K against Ramp4x4's 2. Ramp4x4's advantage is rating (5.0 vs 4.8) and review sentiment (100% vs 85%). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Intervals Pro sells 8 in-app purchases, starting at $2.99 per month and Ramp4x4 sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Ramp4x4 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 2, so its average is the more settled of the two. Written reviews point the same way: 85% of Intervals Pro's written reviews are positive against 100% of Ramp4x4's.

Intervals Pro ships an update weekly, Ramp4x4 every 4 days. The most recent releases landed on November 2, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Intervals Pro | Ramp4x4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (14K ratings)](https://appshunter.io/ios/app/intervals-pro-hiit-timer/id957586938/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ramp4x4-vo2-max-trainer/id6768789400/reviews)** |
| Number of ratings | **14K** | 2 |
| Positive reviews | 84.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 66 MB | 42 MB |
| Requires iOS | 17.5 | **17.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Intervals, LLC](https://appshunter.io/developer/331071662) | [Archline Labs LLC](https://appshunter.io/developer/1896604874) |

## 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


### Ramp4x4

[App page](https://appshunter.io/ios/app/ramp4x4-vo2-max-trainer/id6768789400)

This app guides you through high-intensity interval training sessions designed to improve your VO2 max. It offers live heart-rate feedback and timing for your workouts, with options for both free and premium training plans.

**Highlights:** Norwegian 4x4 interval workouts, Live heart-rate guidance, Apple Watch integration, Multiple training equipment options, Workout performance review, VO2 max estimate tracking

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ramp4x4+ Monthly | $9.99 | per month |
| Ramp4x4+ Yearly | $59.99 | per year |


## Frequently asked questions

### Is Intervals Pro free?

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

### Is Ramp4x4 free?

Ramp4x4 is free to download, with in-app purchases available.

### Which has better reviews, Intervals Pro or Ramp4x4?

Ramp4x4 is rated higher. Intervals Pro averages 4.8 out of 5 from 14K ratings, while Ramp4x4 averages 5.0 from 2 ratings.

### Do Intervals Pro or Ramp4x4 have ads?

Neither Intervals Pro nor Ramp4x4 shows ads.

### Which is updated more often, Intervals Pro or Ramp4x4?

Intervals Pro ships an update weekly, and Ramp4x4 every 4 days. Most recently, Intervals Pro was updated on November 2, 2026 and Ramp4x4 on October 28, 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.*