# One Is Odd vs Odd One Out Puzzle

The clearest difference is in-app purchases: Odd One Out Puzzle at none against One Is Odd's 1. Odd One Out Puzzle also leads on ads (none vs shown) and ratings volume (13 vs 4). One Is Odd's advantage is update cadence (every 10 days vs every 9 months) and rating (5.0 vs 4.7). On price and device support there is nothing between them.

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

One Is Odd holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 4 and 13 respectively.

One Is Odd ships an update every 10 days, Odd One Out Puzzle every 9 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | One Is Odd | Odd One Out Puzzle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/one-is-odd/id1660806446/reviews)** | [4.7 (13 ratings)](https://appshunter.io/ios/app/odd-one-out-puzzle/id6456835772/reviews) |
| Number of ratings | 4 | **13** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Every 9 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 21 MB | 16 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Richard Chapman](https://appshunter.io/developer/435328057) | [Appulet, Inc](https://appshunter.io/developer/1164224103) |

## What reviewers say

### 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 |


### Odd One Out Puzzle

[App page](https://appshunter.io/ios/app/odd-one-out-puzzle/id6456835772)

Test your observation skills by finding the unique image among a set of similar ones. Race against the clock to complete each challenge and discover all the hidden differences.

**Highlights:** Identify unique images, Timed challenges, Observation skills test, Fast-paced gameplay, Multiple image sets

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

**In-app purchases:** none


## Frequently asked questions

### Is One Is Odd free?

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

### Is Odd One Out Puzzle free?

Odd One Out Puzzle is free to download, with no in-app purchases.

### Which has better reviews, One Is Odd or Odd One Out Puzzle?

One Is Odd is rated higher. One Is Odd averages 5.0 out of 5 from 4 ratings, while Odd One Out Puzzle averages 4.7 from 13 ratings.

### Do One Is Odd or Odd One Out Puzzle have ads?

One Is Odd shows ads; Odd One Out Puzzle does not.

### Which is updated more often, One Is Odd or Odd One Out Puzzle?

One Is Odd ships an update every 10 days, and Odd One Out Puzzle every 9 months. Most recently, One Is Odd was updated on November 3, 2026 and Odd One Out Puzzle 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.*