# KnowScore vs Mister13

The clearest difference is in-app purchases: Mister13 at none against KnowScore's 2. Mister13 also leads on update cadence (every 4 days vs monthly). KnowScore's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. KnowScore sells 2 in-app purchases, starting at $3.99 per month. Mister13 asks for nothing beyond the download.

KnowScore ships an update monthly, Mister13 every 4 days. The most recent releases landed on October 9, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | KnowScore | Mister13 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 4 days** |
| Size | 53 MB | 43 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Sergei Soldatov](https://appshunter.io/developer/6784429118) | [DotIt S.R.L.](https://appshunter.io/developer/789389904) |

## What reviewers say

### KnowScore

[App page](https://appshunter.io/ios/app/knowscore/id6784428876)

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KnowScore Premium | $3.99 | per month |
| KnowScore Premium | $29.99 | per year |


### Mister13

[App page](https://appshunter.io/ios/app/mister13/id6798595017)

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

**In-app purchases:** none


## Frequently asked questions

### Is KnowScore free?

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

### Is Mister13 free?

Mister13 is free to download, with no in-app purchases.

### Do KnowScore or Mister13 have ads?

Mister13 shows ads; KnowScore does not.

### Which is updated more often, KnowScore or Mister13?

KnowScore ships an update monthly, and Mister13 every 4 days. Most recently, KnowScore was updated on October 9, 2026 and Mister13 on October 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.*