# Fifteens vs Knyra Logic

The clearest difference is in-app purchases: Knyra Logic at none against Fifteens's 2. Knyra Logic also leads on iOS requirement (13.0 vs 15.6). Fifteens's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. Fifteens sells 2 one-off in-app purchases. Knyra Logic asks for nothing beyond the download.

Fifteens ships an update every 4 weeks, Knyra Logic monthly. The most recent releases landed on October 7, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Fifteens | Knyra Logic |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 4 weeks** | Monthly |
| Size | 9 MB | 158 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Maxim Pakhotin](https://appshunter.io/developer/1204479244) | [Playnix Labs (SMC-Private) Limited](https://appshunter.io/developer/1798523480) |

## What reviewers say

### Fifteens

[App page](https://appshunter.io/ios/app/fifteens-3d/id1327307182)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All dimensions | $1.99 | one-time |
| Full version | $2.99 | one-time |


### Knyra Logic

[App page](https://appshunter.io/ios/app/knyra-logic-thread-game/id6756679341)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fifteens free?

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

### Is Knyra Logic free?

Knyra Logic is free to download, with no in-app purchases.

### Do Fifteens or Knyra Logic have ads?

Knyra Logic shows ads; Fifteens does not.

### Which is updated more often, Fifteens or Knyra Logic?

Fifteens ships an update every 4 weeks, and Knyra Logic monthly. Most recently, Fifteens was updated on October 7, 2026 and Knyra Logic on October 20, 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.*