# Opti Brain vs Reality Cat

The clearest difference is in-app purchases: Reality Cat at none against Opti Brain's 2. Reality Cat also leads on update cadence (every 2 weeks vs every 3 months). Opti Brain's advantage is iOS requirement (12.4 vs 26.4). On price, ads and device support there is nothing between them.

Both are free to download. Opti Brain sells 2 in-app purchases, starting at $9.99 per month. Reality Cat asks for nothing beyond the download.

Opti Brain ships an update every 3 months, Reality Cat every 2 weeks. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Opti Brain | Reality Cat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (13 ratings)](https://appshunter.io/ios/app/opti-brain/id1029982015/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 36.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 159 MB | 599 MB |
| Requires iOS | **12.4** | 26.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [Optiherence](https://appshunter.io/developer/948846804) | [ConnectCode Pte Ltd](https://appshunter.io/developer/429119722) |

## What reviewers say

### Opti Brain

[App page](https://appshunter.io/ios/app/opti-brain/id1029982015)

Visualize and map your brain activity using compatible headbands. Record, save, and compare brain data to understand your cognitive patterns. Discover your optimal performance state and analyze brain activity during various activities.

**Highlights:** Brain activity mapping, Data collection and saving, Customizable collections, Map and movie creation, Brain pattern interpretation, Activity-based comparison

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Opti Subscription | $9.99 | per month |
| Yearly Opti Subscription | $99.99 | per year |


### Reality Cat

[App page](https://appshunter.io/ios/app/reality-cat-whispurr/id6759184910)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Opti Brain free?

Opti Brain is free to download, with in-app purchases available.

### Is Reality Cat free?

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

### Do Opti Brain or Reality Cat have ads?

Neither Opti Brain nor Reality Cat shows ads.

### Which is updated more often, Opti Brain or Reality Cat?

Opti Brain ships an update every 3 months, and Reality Cat every 2 weeks. Most recently, Opti Brain was updated on November 1, 2026 and Reality Cat on October 31, 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.*