# Plus & Minus vs Clue.doku

The clearest difference is in-app purchases: Clue.doku at none against Plus & Minus's 5. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Plus & Minus sells 5 in-app purchases, starting at $4.99 per month. Clue.doku asks for nothing beyond the download.

Plus & Minus ships an update weekly, Clue.doku every 5 days. The most recent releases landed on October 6, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Plus & Minus | Clue.doku |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Size | 44 MB | 49 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Ali Osman Kepir](https://appshunter.io/developer/1673739939) | [Guillermo Arispe](https://appshunter.io/developer/1607945055) |

## What reviewers say

### Plus & Minus

[App page](https://appshunter.io/ios/app/plus-and-minus-code-breaker/id6760176000)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Refill Lives | $0.99 | one-time |
| Flag | $0.99 | one-time |
| Avatar | $1.99 | one-time |
| Frame | $1.99 | one-time |


### Clue.doku

[App page](https://appshunter.io/ios/app/cluedoku/id6798289981)

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

**In-app purchases:** none


## Frequently asked questions

### Is Plus & Minus free?

Plus & Minus is free to download, with in-app purchases available.

### Is Clue.doku free?

Clue.doku is free to download, with no in-app purchases.

### Do Plus & Minus or Clue.doku have ads?

Neither Plus & Minus nor Clue.doku shows ads.

### Which is updated more often, Plus & Minus or Clue.doku?

Plus & Minus ships an update weekly, and Clue.doku every 5 days. Most recently, Plus & Minus was updated on October 6, 2026 and Clue.doku on October 5, 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.*