# Key vs MapRadius

The clearest difference is update cadence: MapRadius at weekly against Key's every 21 months. Key's advantage is iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Key ships an update every 21 months, MapRadius weekly. Both last shipped on November 7, 2026.

## The numbers

| Metric | Key | MapRadius |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Weekly** |
| Size | 1 MB | 12 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Paul Barnes](https://appshunter.io/developer/1159692658) | [Kunftia GmbH](https://appshunter.io/developer/1548197799) |

## What reviewers say

### Key

[App page](https://appshunter.io/ios/app/key-info/id1523681669)

**Features:** macOS Compatibility

**In-app purchases:** none


### MapRadius

[App page](https://appshunter.io/ios/app/mapradius/id1549169193)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Key free?

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

### Is MapRadius free?

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

### Do Key or MapRadius have ads?

Neither Key nor MapRadius shows ads.

### Which is updated more often, Key or MapRadius?

Key ships an update every 21 months, and MapRadius weekly. Most recently, Key was updated on November 7, 2026 and MapRadius on November 7, 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.*