# Ravens vs Percepta

The clearest difference is update cadence: Ravens at every 8 days against Percepta's every 3 weeks. 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.

Ravens ships an update every 8 days, Percepta every 3 weeks. Both last shipped on October 2, 2026.

## The numbers

| Metric | Ravens | Percepta |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 3 weeks |
| Size | 11 MB | 537 MB |
| Requires iOS | 17.2 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Eric de Quartel](https://appshunter.io/developer/1614066463) | [Koninklijke Visio, Landelijke Stichting Slechtzienden en Blinden](https://appshunter.io/developer/1546257768) |

## What reviewers say

### Ravens

[App page](https://appshunter.io/ios/app/ravens/id6475675260)

**Features:** macOS Compatibility

**In-app purchases:** none


### Percepta

[App page](https://appshunter.io/ios/app/percepta/id6761256272)

**In-app purchases:** none


## Frequently asked questions

### Is Ravens free?

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

### Is Percepta free?

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

### Do Ravens or Percepta have ads?

Neither Ravens nor Percepta shows ads.

### Which is updated more often, Ravens or Percepta?

Ravens ships an update every 8 days, and Percepta every 3 weeks. Most recently, Ravens was updated on October 2, 2026 and Percepta on October 2, 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.*