RateKey: Currency Converter

ITeddy

About this app

Type it on your home screen.

RateKey puts a currency converter widget with a real number pad on your home screen. See a price tag, type the amount on the widget keypad, and read the result on the spot — without opening the app. Tap a currency chip and the keypad turns into a currency grid, so you can switch pairs right there too.

CONVERT ON THE HOME SCREEN
• A widget with a built-in number pad — type 1200 and see it converted instantly
• Switch currencies on the widget: 11 frequent currencies plus quick access to all of them
• Works offline with cached rates, clearly marked with the update time

OPEN STRAIGHT INTO THE CONVERTER
• The app opens on the converter. No feeds, no promotions, no detours
• Flip the pair with one tap; amounts format cleanly as you type
• A rates board converts one amount into all your currencies at a glance

READ THE TREND BEFORE YOU EXCHANGE
• Charts from one week to five years
• Press and hold to read the exact rate on any day

SEARCH THE WAY YOU SPEAK
• Find currencies by code, English or Chinese name, or everyday words — "dollar", "yen", "rmb"
• Onshore CNY and offshore CNH are listed separately — they are two different prices

KNOW WHERE YOUR RATE COMES FROM
• Every number shows its source and update time
• Rates are mid-market reference rates from openly published data (Frankfurter), updated daily
• They are not a bank's buy/sell counter rates — we say so right under the result

WHAT RATEKEY DOESN'T DO
• No ads. No account. No sign-in.
• No money transfers, no wallets, no crypto trading
• No location permission — your home currency is inferred from system settings only

40 everyday currencies for travel and cross-border life: USD, EUR, JPY, CNY, CNH, GBP, HKD, TWD, SGD, KRW, THB, AUD, CAD, CHF, MYR, VND, IDR, PHP, INR, AED, TRY, SEK, NOK, DKK, PLN, MXN, BRL, NZD, ZAR and more.

RateKey is free, with all features included.

What’s new

First release.

• A home screen widget with a real number pad — type an amount, read the result, no app needed
• Tap a currency chip to switch pairs on the widget
• Charts from 1 week to 5 years; press and hold to read any day's rate
• Search by code, name, or everyday words like dollar or yen
• Onshore CNY and offshore CNH listed separately
• Works offline with cached rates, update time always shown

Daily mid-market reference rates (Frankfurter), not bank counter rates. No ads, no account.