# Brain Opt vs ONO

The clearest difference is update cadence: Brain Opt at every 5 days against ONO's every 2 months. Brain Opt also leads on iOS requirement (9.0 vs 15.0). ONO's advantage is rating (5.0 vs 4.7). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Brain Opt sells 6 in-app purchases, starting at $4.99 per month and ONO sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ONO holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 18 and 9 respectively.

Brain Opt ships an update every 5 days, ONO every 2 months. The most recent releases landed on August 22, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Brain Opt | ONO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (18 ratings)](https://appshunter.io/ios/app/brain-opt/id1501294640/reviews) | **[5.0 (9 ratings)](https://appshunter.io/ios/app/ono-think-straight/id1533608908/reviews)** |
| Number of ratings | **18** | 9 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 5 days** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 45 MB | 95 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [BRAVO TECHNOLOGY ENTERPRISE LIMITED](https://appshunter.io/developer/1443458724) | [Real Maxwell LLC](https://appshunter.io/developer/1296946363) |

## What reviewers say

### Brain Opt

[App page](https://appshunter.io/ios/app/brain-opt/id1501294640)

Engage in a gallery of challenging brain teasers and tricky puzzles designed to test your logic and imagination. This game offers an unexpected experience with mind-bending challenges that may defy common sense, providing a fun way to boost your cognitive skills.

**Highlights:** Tricky and mind-hitting brain teasers, Unexpected game answers, Test savvy, imagination, and logic, Easy and addictive gameplay, Great time killer, Play offline

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ads Remove | $4.99 | per month |
| VIP Premium | $7.99 | per 7 days |
| 300 Hints | $1.99 | one-time |
| 600 Hints | $2.99 | one-time |
| 1200 Hints | $4.99 | one-time |
| 2800 Hints | $9.99 | one-time |


### ONO

[App page](https://appshunter.io/ios/app/ono-think-straight/id1533608908)

A unique logic puzzle game where you clear 'O's from the screen to achieve 'ONO'. It offers a hybrid casual puzzle experience with increasing complexity and variety. Designed to improve clarity, focus, and working memory through engaging gameplay.

**Highlights:** Unique logic puzzle mechanics, Chain reaction gameplay, Hybrid casual puzzle experience, Improves clarity and focus, 24 levels with increasing difficulty, Free play mode, Thousands of puzzle variations

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads in ONO | $0.99 | one-time |


## Frequently asked questions

### Is Brain Opt free?

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

### Is ONO free?

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

### Which has better reviews, Brain Opt or ONO?

ONO is rated higher. Brain Opt averages 4.7 out of 5 from 18 ratings, while ONO averages 5.0 from 9 ratings.

### Do Brain Opt or ONO have ads?

Both Brain Opt and ONO show ads.

### Which is updated more often, Brain Opt or ONO?

Brain Opt ships an update every 5 days, and ONO every 2 months. Most recently, Brain Opt was updated on August 22, 2026 and ONO on September 10, 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.*