On a train through a tunnel
You're checking whether the lunch you just ordered cost 12 or 28 of your home currency. The conversion appears instantly. Cached this morning at the hotel.
Offline-first
An offline currency converter that doesn't pretend the signal is fine.
Cached rates with timestamps, a calm interface, and a one-time price. Built for the moments when "no service" is the only thing on your screen.
- No ads No banners, no interstitials.
- No subscriptions One purchase. Done.
- No accounts Nothing to sign up for.
- No tracking pixels Your conversions stay on-device.
- Works offline Cached rates with timestamps.
Why "offline" matters more than it sounds
Most currency apps quietly fall over without a connection — the conversion field freezes, a spinner appears, and you're left doing rough mental math at the checkout. Travel Currency Rates was designed the other way around: online is the bonus, offline is the default. Whenever the app has any connection, it pulls the latest mid-market rates and saves them locally. From there, every conversion happens against that local cache, with the rate's age clearly displayed on screen.
At a market stall in Marrakech
The vendor offers 350. You glance at the app — it converts using yesterday's rates because the eSIM is searching for a tower. Close enough to negotiate confidently.
On a long-haul flight in airplane mode
You're planning a budget for the trip ahead. Conversions still work; you can pin currencies and rearrange them, all without a connection.
In a hotel with captive-portal Wi-Fi
The Wi-Fi technically connects but blocks everything until you log in. The app keeps converting against cached rates and refreshes once you're through the splash page.
Offline mode
What people ask about offline currency conversion.
Still curious? Email us at support@travelcurrencyrates.com.
How does an offline currency converter actually work?
Currency rates change every few minutes during banking hours, but for everyday spending the rate from this morning is usually fine. The app downloads rates whenever you have a connection, then keeps them on your device. Offline, it converts using the most recent cached rates and shows you when they were saved, so you know how stale they are.
How outdated do offline rates get?
For travel currencies, mid-market rates typically move less than 1% per day under normal market conditions. For a coffee, a taxi, or a market stall, rates from earlier today are accurate enough. For larger purchases, refresh on hotel Wi-Fi first.
What happens when I get back online?
The app silently refreshes its cache the next time it has a connection. There is no manual sync button to remember — though you can pull-to-refresh if you want a fresh number right now.
Is there a data plan in this?
No. The app uses standard cellular or Wi-Fi data when refreshing rates — typically a few kilobytes. There is no separate "premium data" sold inside the app.
Ready when you are
A converter that travels with you, signal or not.
Pay once, no subscription, no ads.