# Apollo vs OCS

The clearest difference is update cadence: Apollo at monthly against OCS's every 12 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.

Apollo ships an update monthly, OCS every 12 months. The most recent releases landed on September 20, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Apollo | OCS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/apollo-cognitive-testing/id1455948323/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 12 months |
| Monetization | Free | — |
| Size | 218 MB | 138 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [ki elements GmbH](https://appshunter.io/developer/1435472903) | [University of Oxford](https://appshunter.io/developer/688778837) |

## What reviewers say

### Apollo

[App page](https://appshunter.io/ios/app/apollo-cognitive-testing/id1455948323)

This app digitizes classical neuropsychological assessments using AI for standardized, smarter, and faster evaluations. It incorporates proven testing principles with digital scoring, including innovative speech analysis.

**Highlights:** AI-driven neuropsychological assessments, Standardized and faster evaluations, Digital implementation of classic tests, Automated scoring via speech analysis, Manual scoring for clinician control

**Features:** macOS Compatibility

**In-app purchases:** none


### OCS

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

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Apollo free?

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

### Is OCS free?

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

### Do Apollo or OCS have ads?

Neither Apollo nor OCS shows ads.

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

Apollo ships an update monthly, and OCS every 12 months. Most recently, Apollo was updated on September 20, 2026 and OCS on September 18, 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.*