# KlankKr8 Op School vs Percepta

The clearest difference is device support: KlankKr8 Op School at 3 against Percepta's 1. KlankKr8 Op School also leads on iOS requirement (13.0 vs 16.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

KlankKr8 Op School ships an update monthly, Percepta every 3 weeks. The most recent releases landed on October 5, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | KlankKr8 Op School | Percepta |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Size | 460 MB | 537 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [RID](https://appshunter.io/developer/1507768954) | [Koninklijke Visio, Landelijke Stichting Slechtzienden en Blinden](https://appshunter.io/developer/1546257768) |

## What reviewers say

### KlankKr8 Op School

[App page](https://appshunter.io/ios/app/klankkr8-op-school/id6447011591)

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

**In-app purchases:** none


### Percepta

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

**In-app purchases:** none


## Frequently asked questions

### Is KlankKr8 Op School free?

KlankKr8 Op School is free to download, with no in-app purchases.

### Is Percepta free?

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

### Do KlankKr8 Op School or Percepta have ads?

Neither KlankKr8 Op School nor Percepta shows ads.

### Which is updated more often, KlankKr8 Op School or Percepta?

KlankKr8 Op School ships an update monthly, and Percepta every 3 weeks. Most recently, KlankKr8 Op School was updated on October 5, 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.*