# Robus vs Ossby

The clearest difference is update cadence: Robus at every 3 weeks against Ossby's every 13 months. 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.

Robus ships an update every 3 weeks, Ossby every 13 months. The most recent releases landed on September 25, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Robus | Ossby |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 13 months |
| Size | 29 MB | 17 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Robus Athletic OÜ](https://appshunter.io/developer/1660572428) | [Karikrea SL](https://appshunter.io/developer/1670453445) |

## What reviewers say

### Robus

[App page](https://appshunter.io/ios/app/robus/id1660572426)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ossby

[App page](https://appshunter.io/ios/app/ossby/id1670453443)

**In-app purchases:** none


## Frequently asked questions

### Is Robus free?

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

### Is Ossby free?

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

### Do Robus or Ossby have ads?

Neither Robus nor Ossby shows ads.

### Which is updated more often, Robus or Ossby?

Robus ships an update every 3 weeks, and Ossby every 13 months. Most recently, Robus was updated on September 25, 2026 and Ossby on September 29, 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.*