# Brain Boss vs One Is Odd

The clearest difference is rating: One Is Odd at 5.0 against Brain Boss's 3.7. One Is Odd also leads on update cadence (every 10 days vs every 3 months). Brain Boss's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, ratings volume, device support and iOS requirement there is nothing between them.

Both are free to download. One Is Odd sells 1 one-off in-app purchase. Brain Boss asks for nothing beyond the download.

One Is Odd holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 6 and 4 respectively.

Brain Boss ships an update every 3 months, One Is Odd every 10 days. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Brain Boss | One Is Odd |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (6 ratings)](https://appshunter.io/ios/app/brain-boss/id920372599/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/one-is-odd/id1660806446/reviews)** |
| Number of ratings | **6** | 4 |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 70 MB | 21 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rise Up Labs](https://appshunter.io/developer/337502798) | [Richard Chapman](https://appshunter.io/developer/435328057) |

## What reviewers say

### Brain Boss

[App page](https://appshunter.io/ios/app/brain-boss/id920372599)

This game challenges your brain with a fast-paced color and number matching mechanic. It's designed to improve memory and coordination by requiring precise taps within a time limit. Compete with others to see how your brain stacks up.

**Highlights:** Color and number matching gameplay, Tests brain workout skills, Improves memory skills, Scientifically designed challenges, Fast-paced and challenging, Minimalistic UI, Compares coordination against others

**Features:** macOS Compatibility

**In-app purchases:** none


### One Is Odd

[App page](https://appshunter.io/ios/app/one-is-odd/id1660806446)

Challenge your observation skills by finding the unique item among a set of similar objects. With numerous themes and levels, the game offers a fresh experience each time. Compete with others on leaderboards or play at your own pace.

**Highlights:** Variety of themes, Challenging levels, Moving items, Game Center leaderboards, Relaxing gameplay

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 40 Themes & No Ads | $1.99 | one-time |


## Frequently asked questions

### Is Brain Boss free?

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

### Is One Is Odd free?

One Is Odd is free to download, with in-app purchases available.

### Which has better reviews, Brain Boss or One Is Odd?

One Is Odd is rated higher. Brain Boss averages 3.7 out of 5 from 6 ratings, while One Is Odd averages 5.0 from 4 ratings.

### Do Brain Boss or One Is Odd have ads?

One Is Odd shows ads; Brain Boss does not.

### Which is updated more often, Brain Boss or One Is Odd?

Brain Boss ships an update every 3 months, and One Is Odd every 10 days. Most recently, Brain Boss was updated on November 1, 2026 and One Is Odd on November 3, 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.*