# PerfectWord vs One Is Odd

The clearest difference is in-app purchases: PerfectWord at none against One Is Odd's 1. PerfectWord also leads on ads (none vs shown). One Is Odd's advantage is update cadence (every 10 days vs every 8 months). On price, 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. PerfectWord asks for nothing beyond the download.

PerfectWord ships an update every 8 months, One Is Odd every 10 days. The most recent releases landed on October 26, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | PerfectWord | One Is Odd |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/one-is-odd/id1660806446/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 10 days** |
| Monetization | — | Free with in-app purchases |
| Size | 10 MB | 21 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Geoffrey Tywyll](https://appshunter.io/developer/459540549) | [Richard Chapman](https://appshunter.io/developer/435328057) |

## What reviewers say

### PerfectWord

[App page](https://appshunter.io/ios/app/perfectword/id591902538)

**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 PerfectWord free?

PerfectWord 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.

### Do PerfectWord or One Is Odd have ads?

One Is Odd shows ads; PerfectWord does not.

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

PerfectWord ships an update every 8 months, and One Is Odd every 10 days. Most recently, PerfectWord was updated on October 26, 2026 and One Is Odd on October 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.*