# Visual Attention Therapy vs OCS

The clearest difference is price: OCS at Free against Visual Attention Therapy's $19.99. Visual Attention Therapy's advantage is update cadence (every 6 months vs every 12 months) and iOS requirement (9.0 vs 11.0). On ads, in-app purchases and device support there is nothing between them.

OCS is free to download; Visual Attention Therapy costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Visual Attention Therapy ships an update every 6 months, OCS every 12 months. The most recent releases landed on September 24, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Visual Attention Therapy | OCS |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | **[4.7 (486 ratings)](https://appshunter.io/ios/app/visual-attention-therapy/id539203206/reviews)** | — |
| Number of ratings | **486** | — |
| Positive reviews | 92.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 12 months |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 138 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Tactus Therapy Solutions Ltd.](https://appshunter.io/developer/438070002) | [University of Oxford](https://appshunter.io/developer/688778837) |

## What reviewers say

### Visual Attention Therapy

[App page](https://appshunter.io/ios/app/visual-attention-therapy/id539203206)

This app retrains the brain to scan from left to right, improving reading, concentration, and memory. It features two modes to help individuals with left neglect and professionals assess and treat visual attention deficits.

**Highlights:** Left-to-right scanning training, Visual attention deficit assessment, Target finding exercises, Immediate feedback with cues, Automated scoring and reports, Adjustable difficulty and layouts, Printable exercise options

**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 Visual Attention Therapy free?

Visual Attention Therapy costs $19.99, with no in-app purchases.

### Is OCS free?

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

### Do Visual Attention Therapy or OCS have ads?

Neither Visual Attention Therapy nor OCS shows ads.

### Which is updated more often, Visual Attention Therapy or OCS?

Visual Attention Therapy ships an update every 6 months, and OCS every 12 months. Most recently, Visual Attention Therapy was updated on September 24, 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.*