Free
In-App Purchases
Rating summary
About
CurrencySpy is a fast currency converter for iPhone & iPad. Convert between currencies with live mid-market rates, keep the currencies you use on one screen, and see every amount update as you type.
WHY CURRENCYSPY?
Most converters focus on one pair and make you dig through lists. CurrencySpy is built for real moments: a bill abroad, a taxi quote, online shopping, or a quick check before you pay. Add the currencies you need, tap a row to enter an amount, reorder your list, and copy or share a figure in seconds.
LIVE RATES YOU CAN TRUST
Rates are live mid-market figures, not bank, card, or bureau quotes. When spot FX markets close over the weekend, CurrencySpy tells you clearly, not hidden as fresh news.
WORKS OFFLINE
If you lose signal, CurrencySpy keeps the last rates it downloaded so the converter stays useful until a refresh succeeds.
SYNC ACROSS YOUR DEVICES
No account to create. Your watchlist, settings, and history can sync with iCloud between iPhone and iPad.
WIDGETS
Add Last Conversion or Exchange Rate widgets to your Home Screen or Lock Screen. On iOS 18 and later, open CurrencySpy from a Lock Screen control. Plus members can add Exchange Rates and Historical Charts widgets.
MAKE IT YOURS
Choose light, dark, or a colour theme in Settings. Your theme syncs with iCloud and Home Screen widgets.
CURRENCYSPY PLUS (OPTIONAL)
Plus is there when you want more:
• Extra currency rows for a bigger trip
• Full conversion history
• Live rate charts and chart sharing
• Rate watches when a pair hits a number you set
• Currency AI for travel money and live rate questions
• Plus widgets for exchange rates and historical charts
Try Plus free for 3 days subject to conditions and availability.
Currency AI is information only, not financial advice, and will not tell you when to buy or sell.
Rate watches are Plus only. They ping you when a mid-market rate hits your number. That figure is information only, not a dealing quote or financial advice, and it will not tell you when to buy or sell. Watches stay quiet while weekend markets are closed.
CurrencySpy Plus is an optional auto-renewing App Store subscription, charged to your Apple ID, and renews unless cancelled at least 24 hours before the period ends. Manage or cancel in Settings or your Apple ID subscription settings. Family Sharing is available. Use of the app implies you agree to the standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ and our terms: https://aiwebltd.co.uk/apps/currencyspy/
Show more
What's New in CurrencySpy
1.2
September 14, 2026
New colour theme options. Share is enhanced, with more options including chart images. UI tweaks and improvements. Landscape fixes. Plus more.
3
Subscriptions & In-App Purchases
Plus Monthly
More rows, history, charts, rate watches, AI, widgets.
$1.991 Month
3 Days trial







