# Decypher — Learn about Royal Cyphers

> AI-powered identification of UK post boxes and street furniture. (iPhone/iPad app by New Material, Inc..)

- Source: https://appshunter.io/ios/app/decypher/id6448763995 (this page in markdown: same URL + `.md`)
- Developer: [New Material, Inc.](https://appshunter.io/developer/1683570887)
- Category: Reference, Lifestyle
- Price: Free
- Age rating: 4+
- Requires: iOS 16.0 · 69 MB
- Languages: English
- Released: 2023-05-05
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/decypher/id6448763995/reviews.md

## What is Decypher?

Did you know that post boxes in the United Kingdom can tell you a lot about their history and the one of your neighbourhood? Both their shape and the ‘royal cyphers’ they carry can tell you a lot if you know where to look. Decypher uses your camera and AI to tell you more about post boxes and other street furniture around the UK.

## Key features

- AI-powered identification
- Learn about post box history
- Discover street furniture details
- Uses device camera
- UK-focused content

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/decypher/id6448763995/reviews.md

### 4/5 — Great way to learn about history and trivia

*2023-05-10, version 1.0.2*

The app is really easy to use and provides great snippets of information. Would highly recommend for curious minds looking to learn more about history.

### 5/5 — This could be the next Pokémon Go

*2023-05-09, version 1.0.2*

The postbox models are super cute. Would be a great way to explore and learn more about the city with more features

### 5/5 — Works very well with older iPhones!

*2023-05-07, version 1.0.2*

The app is very useful. Works super smoothly on my iPhone XS. No frame rate issues at all!

### 5/5 — Love it

*2023-05-05, version 1.0.1*

This app is amazing! Just in time for coronation weekend - it has opened a new world while I’m walking around London and the interface is flawless!

## Frequently asked questions about Decypher

### What can Decypher identify?

Decypher can identify UK post boxes and other street furniture. It uses your camera and AI to provide information about their history and significance.

### Is Decypher free to use?

Yes, Decypher is completely free to download and use. There are no in-app purchases or advertisements.

### What devices does Decypher support?

Decypher is currently available for iPhone devices.

### How does Decypher work?

Decypher utilizes your device's camera and artificial intelligence to analyze images of post boxes and street furniture, providing you with detailed information.

### When was Decypher last updated?

The latest version, 1.0.2, was released on May 6, 2023. The app was initially released on May 5, 2023.

### What is the age rating for Decypher?

Decypher has an age rating of 4+, making it suitable for a wide range of users interested in learning about UK street furniture.

### Does Decypher have ads?

No, Decypher is ad-free. You can explore its features without any interruptions from advertisements.

## Version history (last 3 releases)

### 1.0.2 — 2023-05-06

Improved support for various screen sizes and bug fixes.

### 1.0.1 — 2023-05-05

Improved onboarding and instruction interface.

### 1.0 — 2023-05-05

No release notes.

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## More apps by New Material, Inc.

- [Anonymous Camera](https://appshunter.io/ios/app/anonymous-camera/id1504102584)
- [FieldDay · Play](https://appshunter.io/ios/app/fieldday-play/id6448126302)
- [FieldDay · Real-World AI](https://appshunter.io/ios/app/fieldday-real-world-ai/id6448133483)

All apps by New Material, Inc.: https://appshunter.io/developer/1683570887

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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 2026-06-01.*