Currency Converter Optimised brings real-time currency conversion and tax calculation together in one fast, beautiful app.

REAL-TIME CURRENCY CONVERSION
Convert between 30 major world currencies using live exchange rates from the European Central Bank (ECB) via the trusted Frankfurter API.

• Instant conversion as you type — no waiting, no loading screens
• Bi-directional input: type in either currency field and the other updates automatically
• One-tap swap button to reverse the conversion pair
• Searchable currency picker — find currencies by code (USD), name (Dollar), or country (United States)
• Country flag indicators for quick visual identification
• Manual refresh to fetch the latest rates on demand
• Offline support: cached rates are available when you have no internet connection
• Clear rate display showing the exact exchange rate and last-updated timestamp
• ECB rate disclaimer for transparency

SUPPORTED CURRENCIES (30)
USD, EUR, GBP, JPY, AUD, CAD, CHF, CNY, CZK, DKK, HKD, HUF, IDR, ILS, INR, ISK, KRW, MXN, MYR, NOK, NZD, PHP, PLN, RON, SEK, SGD, THB, TRY, BRL, ZAR

TAX CALCULATOR
Quickly calculate the final price including tax — no internet required.

• Enter any base price and tax percentage
• See a clear breakdown: base price, tax amount, and final total
• Works completely offline — all calculations happen on your device
• Smart decimal input supporting both comma and period separators
• Perfect for shopping, invoicing, freelancing, or travel budgeting

PRIVACY-FIRST DESIGN
• No account required — no login, no sign-up
• No personal data collected or stored
• Non-personalised ads only (removable with a one-time purchase)
• GDPR-compliant consent management for EEA/UK users
• All calculations performed locally on your device

CLEAN & FAST
Built with modern React Native technology for smooth, native performance on every Android device. The minimal, distraction-free interface lets you focus on what matters — getting accurate conversions and calculations instantly.

REMOVE ADS
Enjoy a completely ad-free experience with a single, one-time in-app purchase. No subscriptions, no recurring charges — pay once and ads are gone forever across both the converter and tax calculator.

DATA SOURCE
Exchange rates are sourced from the European Central Bank (ECB) through the open-source Frankfurter API. Rates are updated daily on business days. Note: banks and merchants may apply different rates or fees for actual transactions.