# OCS vs BioCog

The clearest difference is update cadence: BioCog at monthly against OCS's every 12 months. OCS's advantage is iOS requirement (11.0 vs 17.6). 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.

OCS ships an update every 12 months, BioCog monthly. Both last shipped on October 5, 2026.

## The numbers

| Metric | OCS | BioCog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Monthly** |
| Size | 138 MB | 55 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [University of Oxford](https://appshunter.io/developer/688778837) | [Lund University](https://appshunter.io/developer/583639460) |

## What reviewers say

### OCS

[App page](https://appshunter.io/ios/app/ocs-plus/id1514766032)

**Features:** Vision Pro support

**In-app purchases:** none


### BioCog

[App page](https://appshunter.io/ios/app/biocog/id6745024792)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OCS free?

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

### Is BioCog free?

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

### Do OCS or BioCog have ads?

Neither OCS nor BioCog shows ads.

### Which is updated more often, OCS or BioCog?

OCS ships an update every 12 months, and BioCog monthly. Most recently, OCS was updated on October 5, 2026 and BioCog on October 5, 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.*