Choose two currencies
Pick what you have and what you want to understand.
A currency converter for iPhone that makes foreign prices feel familiar.
Spin for a quick estimate. Type an exact amount. Keep cached reference rates ready when your signal fades.
No account · No ads · Estimates only
Turn a foreign price into something familiar.
Choose a pair. Spin or type an amount. Currency DJ checks the latest available reference rate, then converts the amount in your browser.
Estimated result
Sample estimate · requesting latest available reference rate…
- 01Pair chosenJPY → USD
- 02Reference rate checkedLatest available or cached
- 03Amount calculated hereInside this browser
- 04Estimate readyCheck final fees before paying
Reference estimate only. Your bank, card, ATM, or checkout rate may differ.
One screen. Less travel math.
Spin, type, swap, search 160 selectable currencies, and see rate status without digging through menus.
From foreign price to familiar estimate.
Spin or type
Turn the wheel for speed or type an exact source amount.
Check the snapshot
See whether the reference rate is refreshed, cached, or stale.
Use the estimate
Copy, swap, or jump to a favorite. Check final fees before you pay.
Start free. Add more room when you need it.
Free gives you the full conversion flow for up to 10 counted conversions each local day. Pro removes that counted-conversion limit and adds more control.
| Feature | Free | Pro |
|---|---|---|
| Counted conversions | 10 each local day | Unlimited |
| Manual refresh | One attempt per 24 hours | 30-second cooldown |
| Favorites | Six defaults | Customize up to 24 |
| Wheel & haptics | Classic | Premium styles and advanced modes |
| Magnetic snapping | — | Included |
| Offline preparation | Selected cached pairs | Expanded relevant cache |
Plans and storefront prices can change. See the App Store for current purchase terms.
Keep the day moving.
Café
Estimate the menu price, then get back to the table.
Train
Estimate the ticket price before the line moves.
Market
Compare nearby prices without starting over.
Hotel
Estimate the displayed total, then verify fees and checkout terms.
Currency DJ gives reference-rate estimates, not bank, card, ATM, or checkout quotes.
Simple to open. Clear about data.
- No accountOpen straight to the converter.
- No adsCurrency DJ does not show advertising.
- Amounts stay localEntered amounts and results are excluded from rate requests and analytics.
- Your app choiceFirebase analytics and crash diagnostics can be turned off in Settings.
- Website choiceOptional Google Analytics loads only after you allow it, and you can withdraw later.
Know what the estimate can—and cannot—tell you.
Learn how cached rates work, why final card charges can differ, and what to check before you pay.
01
Currency app vs Calculator
Compare Currency DJ with iPhone Calculator for travel conversion, repeated price checks, exact entry, favorites, and cached exchange-rate estimates.
02
Travel calculator for iPhone
Prepare Currency DJ before a trip, save useful currencies, refresh reference rates, read cache age, and make quick travel estimates on iPhone.
03
Offline cached conversion
Learn when Currency DJ works offline, how rate snapshots are prepared, what fresh, cached, and stale mean, and when an old estimate is unsafe.
04
Shopping abroad
Convert menus and shop prices abroad with a quick iPhone workflow, sensible rounding, and clear limits for fees and dynamic currency conversion.
05
Estimate vs card rate
Understand why a Currency DJ reference-rate estimate can differ from a bank, card, ATM, checkout, or exchange-counter conversion.
06
Latest vs cached rates
Learn what latest, fresh, cached, and stale mean in Currency DJ, including its 12-hour warmup window and 14-day stale threshold.
07
The scrub wheel
Learn the Currency DJ scrub wheel: speed-sensitive steps, exact entry, reset gestures, haptics, VoiceOver, Reduced Motion, and Pro snapping.
08
No-account conversion
Understand Currency DJ privacy: no account, no ads, local amount arithmetic, pseudonymous Firebase analytics, crash diagnostics, and website consent.
Currency conversion questions, answered simply.
Can Currency DJ convert without internet?
Yes, when a locally stored snapshot covers the selected pair. Cached data is marked stale at 14 days.
Read the full answerAre the rates the same as my card or bank?
No. Currency DJ shows reference-rate estimates. A bank, card, ATM, or checkout can use different timing, fees, or conversion terms.
Read the full answerDoes Currency DJ require an account?
No. The app opens directly to the converter. Limited pseudonymous app analytics and crash diagnostics are enabled by default and can be turned off in Settings.
Read the full answerWhat is included free and with Pro?
Free includes the complete conversion flow, 10 counted conversions each local day, one manual refresh per 24 hours, and six favorites. Pro expands limits and customization.
Read the full answerHow does the scrub wheel work?
Turn clockwise or counterclockwise for quick amount changes, move faster for larger steps, or tap for exact entry.
Read the full answerLess travel math. More of the trip.
Keep fast estimates, exact entry, favorites, and cached reference rates on your iPhone.
No account · No ads · Estimates only