# Eclipse Elite vs Fartlek

The clearest difference is in-app purchases: Eclipse Elite at none against Fartlek's 3. Eclipse Elite also leads on iOS requirement (11.0 vs 18.5). Fartlek's advantage is update cadence (every 4 days vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. Fartlek sells 3 in-app purchases, starting at $1.99 per 7 days. Eclipse Elite asks for nothing beyond the download.

Eclipse Elite ships an update every 4 months, Fartlek every 4 days. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Eclipse Elite | Fartlek |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 36 MB | 29 MB |
| Requires iOS | **11.0** | 18.5 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Calliaqua](https://appshunter.io/developer/1339486474) | [Axis SA](https://appshunter.io/developer/1621529800) |

## What reviewers say

### Eclipse Elite

[App page](https://appshunter.io/ios/app/eclipse-elite/id1339486475)

This app helps registered athletes manage their training and wellness data. It integrates with Apple Health to track sleep, training, and other measurements, providing a comprehensive view of an athlete's health.

**Highlights:** Athlete management, Training data tracking, Wellness measurement, Sleep tracking, HealthKit integration, View data in Apple Health

**In-app purchases:** none


### Fartlek

[App page](https://appshunter.io/ios/app/fartlek-interval-run-timer/id6752724674)

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $1.99 | per 7 days |
| Monthly premium | $4.99 | per month |
| Yearly Premium | $29.99 | per year |


## Frequently asked questions

### Is Eclipse Elite free?

Eclipse Elite is free to download, with no in-app purchases.

### Is Fartlek free?

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

### Do Eclipse Elite or Fartlek have ads?

Neither Eclipse Elite nor Fartlek shows ads.

### Which is updated more often, Eclipse Elite or Fartlek?

Eclipse Elite ships an update every 4 months, and Fartlek every 4 days. Most recently, Eclipse Elite was updated on October 29, 2026 and Fartlek on October 30, 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.*