Decypher
Decypher uses your camera to identify post boxes and their history.
At a glance
Starts at
Free
No paid plan found on the App Store, September 2026.
Free tier
Yes
Platforms
iPhone
Best for
Curious travelers, history enthusiasts
Not for
In-depth history buffs
3.9 out of 5
Scored by a Toolio reviewer after real useOur verdict
Explore UK's rich postal heritage through a fun augmented reality app. It works well on older iPhones but lacks features for detailed user interaction.
✓What it does well
Spot Post BoxesIdentifies and provides history of post boxes in real-time using camera.
Interactive LearningLearn about design, shape, and historical significance while exploring neighborhoods.
iOS CompatibilityWorks smoothly on older iPhones with no frame rate issues.
✕Where it falls short
Limited FeaturesDoesn't offer in-depth analysis or additional content for each post box.
Static ContentNo dynamic interactions beyond basic information and images about post boxes.
Screen Size LimitationsSupports various screen sizes but performance may vary on newer devices with higher resolution displays.
Key features
Camera AccessUses the camera to scan post boxes and their royal cyphers.
Real-Time InformationProvides instant feedback about local history while exploring streets.
AI TechnologyEmploys AI for accurate identification of post boxes and their historical details.
Dynamic InteractionsEnhances engagement with interactive elements.