The converter is free. Try everything else free for 14 days, then keep it with one payment.
Free
$0
Check a rate and convert an amount between the major currencies. Free forever, no sign-up.
The converter for the 30 major currencies
Daily ECB reference rates
Your own base currency, and one-tap invert
Converter charts for the 30 major currencies, over 7 days and 1 month
Pay once. Own it forever.
Every feature and all 160 currencies — one payment.
Keyed rates and yields (ExchangeRate-API + FRED)
160 currencies, every pair
Bond-yield dashboard with FX context
AI trend outlooks, pair by pair
Unlimited watchlists
Unlimited rate alerts
Two-pair chart overlays
CSV export
Pay once. Own it forever.
Every feature and all 160 currencies — one payment.
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One-time purchase. Never renews. Restore it on any device signed in to the same account.
Try everything free for 14 days. When the trial ends, Markets, Yields, Trends, AI outlooks, alerts, the watchlist, all 160 currencies and chart ranges beyond one month lock. Keep them forever with a one-time unlock. Starting the trial is free and nothing is charged when it ends.
Sold by Link (Stripe), the merchant of record, which sends your receipt and handles payment support. Prices include applicable tax.
The full app unlocks as soon as your payment goes through. By buying, you agree to immediate access and acknowledge that you lose your 14-day right of withdrawal.
How it works
The converter is free for good: the 30 major currencies at daily ECB reference rates, one-tap invert, and its chart over 7 days and 1 month. No account, no card.
The full app switches the converter and boards onto keyed rates — ExchangeRate-API for 160 currencies and every pair, with FRED and US Treasury data behind the bond-yield dashboard — and adds the Markets tab, pair detail, AI trend outlooks, two-pair overlays, watchlists, rate alerts, CSV export and every chart range. Charts and rate history cover the 30 major currencies.
Every feature is free to try for 14 days, and nothing is charged when the trial ends. To keep them, unlock the full app with a single payment: it never expires, and it stays with you on every device signed in to the same account. The converter stays free either way.
The lifetime unlock is sold here on the web and in the CertusFX app on Google Play and the App Store.