# ION vs Athelyst

The clearest difference is update cadence: ION at fortnightly against Athelyst's every 5 weeks. ION also leads on iOS requirement (17.6 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ION ships an update fortnightly, Athelyst every 5 weeks. The most recent releases landed on October 28, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | ION | Athelyst |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Size | 56 MB | 6 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [CARLOS MARTIN DE ARGILA LORENTE](https://appshunter.io/developer/1869158134) | [Magnus Singer](https://appshunter.io/developer/1866033750) |

## What reviewers say

### ION

[App page](https://appshunter.io/ios/app/ion-workout-log/id6757827438)

**Features:** macOS Compatibility

**In-app purchases:** none


### Athelyst

[App page](https://appshunter.io/ios/app/athelyst/id6761343441)

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

**In-app purchases:** none


## Frequently asked questions

### Is ION free?

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

### Is Athelyst free?

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

### Do ION or Athelyst have ads?

Neither ION nor Athelyst shows ads.

### Which is updated more often, ION or Athelyst?

ION ships an update fortnightly, and Athelyst every 5 weeks. Most recently, ION was updated on October 28, 2026 and Athelyst on October 19, 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.*