Applications · Finance & tax

NairaGuard

A mobile-first prototype showing how counterfeit Naira checks could work from a phone photo.

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Status: Prototype Demo with simulated analysis
Access: Open to try
Type: Concept
Role: Designer and developer.
Built with: HTML
CSS
JavaScript
Link checked: Loads; displays its own demo-version notice (10 October 2026)

NairaGuard scanner screen with a notice that analysis is simulated — Scanner screen. The app labels itself as a demo with simulated analysis.

The problem

Counterfeit notes are hard to spot quickly at the point of sale.

Who it is for

People handling cash in everyday transactions in Nigeria.

What was built

A single-file web app with camera capture, a reference gallery of note denominations, a learning section on security features and local scan history.

Key features

Camera capture and upload
Denomination reference gallery
Security-feature guide
Offline support

Results so far

Demonstrates the user journey only.

Limitations and context

Analysis is simulated; it does not detect counterfeit notes.
Not affiliated with the Central Bank of Nigeria.