# Keeper of Measurements — Metric Mayhem

> Metric Mayhem (iPhone/iPad app by Arcade Ltd.)

- Source: https://appshunter.io/ios/app/keeper-of-measurements/id1622804322 (this page in markdown: same URL + `.md`)
- Developer: [Arcade Ltd](https://appshunter.io/developer/1437272542)
- Category: Education, Entertainment
- Price: Free
- Age rating: 4+
- Requires: iOS 12.0 · 88 MB
- Languages: English
- Released: 2022-05-11
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/keeper-of-measurements/id1622804322/reviews.md

## What is Keeper of Measurements?

The Keeper of Measurements: Metric Mayhem is the latest augmented reality adventure to emerge from the World of Keepers, created and developed by immersive experience agency Arcade, and commissioned by the NPL.

If you would like to try this experience remotely, you can download all the posters and information you need here: https://www.npl.co.uk/keeper-of-measurements-metric-mayhem


## Version history (last 4 releases)

### 1.3 — 2022-09-09

Updated to work for multiple locations.

### 1.2 — 2022-05-25

Updated description

### 1.1 — 2022-05-11

Improved detection and AR.

### 1.0 — 2022-05-11

No release notes.

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## More apps by Arcade Ltd

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- [Alone Together](https://appshunter.io/ios/app/alone-together/id1583962478)

All apps by Arcade Ltd: https://appshunter.io/developer/1437272542

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-19.*