# Intervals vs Norwegian 4x4 Timer

The clearest difference is rating: Norwegian 4x4 Timer at 5.0 against Intervals's 4.0. Norwegian 4x4 Timer also leads on in-app purchases (none vs 2). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Intervals sells 2 in-app purchases, starting at $2.99 per month. Norwegian 4x4 Timer asks for nothing beyond the download.

Norwegian 4x4 Timer holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Intervals ships an update every 9 days, Norwegian 4x4 Timer fortnightly. The most recent releases landed on September 24, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Intervals | Norwegian 4x4 Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/intervals-the-training-timer/id6736897379/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/norwegian-4x4-timer/id6793446428/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Fortnightly |
| Monetization | Freemium | **Free** |
| Size | 49 MB | 2 MB |
| Requires iOS | 18 | **17.0** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Christoph Gogolin](https://appshunter.io/developer/511901280) | [No Translation Layer LLC](https://appshunter.io/developer/1705015522) |

## What reviewers say

### Intervals

[App page](https://appshunter.io/ios/app/intervals-the-training-timer/id6736897379)

This app provides a versatile interval timer for various training styles like HIIT and Tabata, integrating seamlessly with Apple Watch and iPhone. It offers detailed workout tracking, custom workout creation, and performance analytics to help users achieve their fitness goals.

**Highlights:** Real-time workout tracking on Apple Watch, Customizable workout editor, Training Impulse and heart rate zone analysis, Game Center integration for leaderboards, Weekly progress challenges, Apple Health integration

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Pro features (monthly) | $2.99 | per month |
| All Pro features (yearly) | $12.99 | per year |


### Norwegian 4x4 Timer

[App page](https://appshunter.io/ios/app/norwegian-4x4-timer/id6793446428)

This free app guides users through the Norwegian 4x4 interval training protocol to improve cardio and VO2 Max. It supports various cardio activities and allows for customization of interval durations and repetitions.

**Highlights:** Norwegian 4x4 Protocol guidance, Customizable interval durations, Adjustable number of intervals, Supports various cardio activities, VO2 Max improvement focus

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

**In-app purchases:** none


## Frequently asked questions

### Is Intervals free?

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

### Is Norwegian 4x4 Timer free?

Norwegian 4x4 Timer is free to download, with no in-app purchases.

### Which has better reviews, Intervals or Norwegian 4x4 Timer?

Norwegian 4x4 Timer is rated higher. Intervals averages 4.0 out of 5 from 1 ratings, while Norwegian 4x4 Timer averages 5.0 from 1 ratings.

### Do Intervals or Norwegian 4x4 Timer have ads?

Neither Intervals nor Norwegian 4x4 Timer shows ads.

### Which is updated more often, Intervals or Norwegian 4x4 Timer?

Intervals ships an update every 9 days, and Norwegian 4x4 Timer fortnightly. Most recently, Intervals was updated on September 24, 2026 and Norwegian 4x4 Timer on September 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*