Download on the App Store
Fast FX checks for travel, shopping, and daily money math

Currency DJ

Convert between 160 selectable currencies on iPhone with a tactile DJ-style wheel. Spin for quick amount changes, tap for exact entry, and refresh live rates when you need them.

160 Selectable currencies
Live Exchange-rate refresh
No Account or ads required

Try the scrub wheel in your browser.

This demo uses Frankfurter’s live exchange-rate API, then performs the amount conversion locally on the page.

1
Pick a pair

Choose source and target currencies from Frankfurter’s current currency catalog.

2
Spin the wheel

Drag, scroll, or use arrow keys to change the source amount with a tactile wheel feel.

3
See the live estimate

The page refreshes the latest rate for the selected pair and formats the result instantly.

Converted estimate
Loading...
Fetching live rate from Frankfurter.

Built for quick checks, not calculator clutter.

Currency DJ keeps the conversion workflow on one focused screen with the controls travelers and shoppers need most.

DJ-style scrub wheel

Spin clockwise or counterclockwise to adjust amounts quickly. Faster spins make larger changes.

Exact amount entry

Tap the amount anytime when you need a precise total for a receipt, menu, invoice, or travel budget.

Live and cached rates

Refresh rates when online, then keep using cached snapshots for approximate offline conversion.

Instant currency swap

Flip source and target currencies in one tap when comparing prices both ways.

Favorite currencies

Start with practical defaults and unlock custom favorites with Currency DJ Pro.

Private by design

No account, no advertising SDKs, and no manual amounts sent with exchange-rate requests.

Currency DJ converter screen showing JPY to USD conversion with the scrub wheel

Spin, tap, swap, refresh.

The core flow stays close to your thumb so you can check a price while walking through an airport, store, or cafe.

1

Choose currencies

Pick a source and target currency from the built-in catalog of 160 selectable options.

2

Adjust the amount

Use the scrub wheel for quick changes or tap the amount for exact number entry.

3

Check the result

Copy the conversion, swap the pair, or refresh rates when you need the latest available data.

No account. No ads. No tracking across apps.

Currency DJ is designed for fast utility without building a personal profile. Amounts, selected currencies, favorites, and conversion results are processed locally in the app.

Read the Privacy Policy

Local conversion workflow Manual amounts and conversion results are not sent with exchange-rate requests.
Firebase diagnostics Firebase Analytics and Crashlytics may be used to understand reliability and purchase flows.
No advertising identifiers Currency DJ does not use advertising SDKs or account-based tracking.

Questions before you download?

Is Currency DJ free?

Yes. Currency DJ includes free daily conversions. Currency DJ Pro unlocks unlimited conversions, live refresh, custom favorites, premium wheel styles, and advanced haptics.

Does Currency DJ work offline?

It can use cached exchange-rate snapshots after rates have been downloaded. Cached rates are approximate and may become outdated.

How accurate are the exchange rates?

Currency conversions are estimates. Banks, card issuers, payment processors, shops, and currency exchanges may use different rates or fees.

How do I contact support?

Email support@emonster.com and include your device model, iOS version, app version, and issue details.

Ready for faster currency checks?

Download Currency DJ for iPhone and keep quick FX math one spin away.

Download on the App Store
Free - iPhone - No account required