Eight things it does well.
38 fiat currencies
USD, EUR, GBP, JPY, CNY, KRW, INR — and 31 others. Major global currencies plus regional favourites.
24-hour smart cache
Rates are fetched once a day and reused. API hits stay polite; conversions stay instant.
30-day price history
Daily snapshots build a complete one-month history. Open the pair, see where it's been.
24-hour trend arrows
Up or down, with the percentage change versus yesterday. A quiet visual; no chart noise.
Flexible number input
Type 1,000,000 or 1000000. Both parse the same. Localised separators welcome.
Two-column layout
Pair pickers on the left, amount on the right, swap button in the middle. The pattern that's been working for decades.
Offline mode
When the network is gone, the most recent cached rates are still in play. The screen tells you which.
State persistence
Pair, amount, last view — all of it remembered between sessions.
Four moves across borders.
Pick a pair
From and to. Both pickers know all 38 currencies; type to filter.
Type the amount
Enter a value. Conversion is instant; commas optional.
Read the trend
The 24-hour arrow tells you which way the rate moved since yesterday. Open the pair to see 30 days.
Swap and copy
One-click swap reverses the pair. Copy outputs in either direction.
The work it actually does.
International billing
Translate USD price points into EUR, GBP, or JPY for marketing site copy without leaving the editor.
App development
Sanity-check FX-rate logic against a tool that knows what it's doing.
Multi-currency invoices
Quote in your client's currency, paid in yours — without spreadsheets.
Quick conversions
Wallet vs. menu price; see the answer at a glance.
Spotting movement
The 30-day chart hints at where a pair is heading; the arrow tells you what changed yesterday.
Distributed work
Communicate budgets across markets in the unit each market actually pays in.
Things people ask before they download.
Where do exchange rates come from?
From a public exchange-rate API. Rates are fetched once per day per currency; the smart cache covers everything in between.
How does the 30-day history get built?
Each launch within a new day takes a daily snapshot. After 30 days you have a full month, automatically.
What does the 24-hour trend arrow show?
The percentage change of the current pair versus the snapshot from 24 hours ago. Up or down, with the value.
Does this work offline?
Yes — against the most recent cache. The status strip tells you when the rate was last fetched, so you know whether to trust it.
Are crypto assets supported?
No. Only fiat currencies; 38 of them.
Does it remember my last conversion?
Yes. Currency pair, amount, view — all preserved between sessions.