Exchange rates, decoded.

Convert and follow the majors from your own base currency, free. With Pro: 160 currencies, AI trend outlooks, and the bond-yield context other rate apps skip.
The CertusFX app is free on the App Store and Google Play.

Everything in the app

Convert

A fast two-currency converter with 30-day mini charts and a majors board that follows your base currency.

Markets

Rate boards for every pair from your base, starred watchlists, and a 30-day indexed chart of the majors.

Yields

A Pro dashboard of government bond yields and the rate gaps that move currencies.

Trends

AI trend outlooks per pair, with Pro — direction, strength and confidence at a glance.

Make it yours

Pick your base currency and build your watchlist. Personalization is free, forever.

Ready when you are

No sign-up needed — open the converter and start converting in seconds.
Open the converter
Rates are reference values for information only, not dealing quotes.
CertusFX — a NestCalc app