RatesAlert — never miss the best exchange rate. RatesAlert monitors foreign-exchange rates in real time and notifies you the moment a rate enters its historically favorable range, so you can exchange at the right time. Features - Live rates: browse 100+ currencies with search; set your own base currency. - Currency converter: convert any two currencies instantly. - Rate alerts: subscribe to a currency pair and get notified when its rate drops into the historical low 10%-40% range. - History charts: view 1, 3, 6 and 12-month trends to inform your decision. - Background monitoring: checks rates periodically even when the app is closed. Rates come from public European Central Bank data (via the Frankfurter API). No account, no ads, no tracking — your data stays on your device.