I’m a developer based in Togo, and I recently built a small tool called koodi.africa, a Progressive Web App that aggregates USSD codes (used to check balances, buy data, send money, etc.) for telecom users in Africa.

In many African countries, users rely on USSD codes for everyday mobile money actions and data purchases—but it’s hard to remember all the codes across different networks and countries (Moov, MTN, Yas, Orange, etc.).

So I created koodi.africa as a simple, installable web app that lists these codes in an easy-to-use interface. You tap a button (e.g., “Buy 500MB data”), and it launches the correct USSD code. It even handles variables if needed.

It works offline after the first load, so it’s usable without an internet connection. Great for people who travel, use dual-SIM phones, or manage multiple numbers.

This is just an MVP – built in a few hours – but I’d love feedback, feature suggestions, and contributions.

Try it here: https://koodi.africa

Happy to answer questions!