Exchange Rates - All at Once
All your currencies at once
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Ever open a currency app and end up converting the same amount three times, once per currency?
Exchange Rates Calculator takes the amount once and shows every currency you care about on one screen.
■ Every currency at once
Type 1,000 and see dollars, euros, pounds, yen and won side by side.
No switching the "to" currency and starting over.
■ Convert from any of them
Tap the euro row and it becomes the input. Whatever you had carries over as the converted
amount, and you can keep typing from there.
■ 166 currencies
From the majors to the ones you'll only ever need once. Search by name or code, add what you
want to your list, and drag the rows into the order that suits you.
■ Works on the plane
Rates are stored on your device, so conversions keep working with no connection.
If the data is a few days old, the app says so rather than pretending otherwise.
■ Built like a calculator
A 000 key for adding three zeros at a time and a clear key for starting over.
Large amounts take a couple of taps.
■ No ads, no account, no data collection
Every feature is free. There is nothing to sign in to, and nothing is sent to a server.
Tipping the developer is optional and unlocks nothing.
■ For reference only
Rates refresh once a day and may differ from your bank's rate or the rate your card issuer
applies. For anything where the exact figure matters — exchanging money, sending it abroad,
paying a bill — confirm it with the institution handling the transaction. The numbers here are
a guide, not a basis for trading or investment decisions.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
· Small amounts now keep their decimals. 100 Vietnamese dong shows as 5.18 won instead of 5.
· Updated the contact email address.
· New Home Screen widget.
Tap the amount into the large widget's keypad and see it in several currencies at once.
The developer, SANGHOON LEE, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- SANGHOON LEE
- Size
- 2.4 MB
- Category
- Finance
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
English and 5 more
- English, German, Japanese, Korean, Simplified Chinese, Spanish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Another Round $5.99
- A Coffee $2.99
- An Espresso $0.99
- Copyright
- © 2026 SANGHOON LEE