CurrencyRef: Offline Sheet

CurrencyRef is an offline currency converter for travel. You set the exchange rate yourself, and the app turns it into a clean conversion table you can read at a glance. Nothing is fetched and nothing is downloaded, so it works the same on a plane, in a basement car park, or in a country where your data plan does not.

There is no account, no sign up and nothing to wait for. Type the two currency codes, type the rate you were quoted at the counter or the one you decided to use for the trip, and the whole table is in front of you.

WHAT YOU CAN DO
Set any base and target currency by typing its code, so you are not held to a fixed list.
Tap one of 22 built in codes to switch the target instantly, including USD, EUR, GBP, CAD, AUD, NZD, JPY, CHF, CNY, HKD, SGD, INR, MXN, BRL, KRW, THB, AED, TRY, ZAR, NOK, SEK and DKK. The rate stays as you typed it, so enter the one for the new currency.
Enter the rate on a number pad that accepts a comma or a period, whichever your keyboard gives you.
Read the headline conversion at the top in large type: 1 unit of your base currency in the currency you are spending.
Check nine common amounts at once: 1, 5, 10, 20, 50, 100, 200, 500 and 1000, each rounded to two decimals.
Watch every row of the table update as you change the rate.
Use the offline currency converter in airplane mode, underground, or abroad with no data plan.
Read it in light or dark, following your device automatically.

WHO IT IS FOR
Travellers who want one number they can rely on for a whole trip. Anyone changing cash at a bureau and checking the counter's arithmetic. Shoppers and market-goers who would rather use one rate they chose than reload something every time they look at a price tag. People who simply want a currency converter with no loading spinner, because there is nothing to fetch.

PRIVACY
CurrencyRef makes no network requests of any kind. There is no account, no sign up, no analytics and no tracking. Whatever you type stays on your device, which is also why the app never asks you for a permission.

QUESTIONS

Does it need an internet connection?
No. There is no network code in the app at all. Every conversion is worked out on your device, which is what makes it a genuinely offline currency converter.

Where do the rates come from?
From you. This is a manual currency converter: you enter the rate, so the table is exactly as current as the number you put in. Each time the app starts, it opens on a sample rate of 1 USD to 0.92 EUR, so type the rate you want to use.

Which currencies does it handle?
Any of them. 22 common codes are one tap away, and any other code can be typed in directly.

Which amounts does the table show?
1, 5, 10, 20, 50, 100, 200, 500 and 1000, each converted at your rate and rounded to two decimals.

Type the rate, read every price at a glance, and stop hunting for a signal to do arithmetic you already have the numbers for.

Recent changes:
New app icon.