Convert units and currencies faster than you type. Here is how:
Begin by entering the number you want to convert
Type here, no need to switch keyboards
The units from previous conversions are used
Next, enter the first letter of the unit, say, g
All units starting with g appear, no matter the category
Most probable target unit is used based on your history
Most probable convertions are done for each suggestion
Go to the history
Clear the unit with backspace
Previously used units
Go to the menu
Tap here to see the all available units
Results, results, results
Even here, you see all the results before you tap
Tap the value to change it, tap the unit or swipe from the left edge of the screen to get back to history
Keyboard still here
Get back to typing any moment
Currency rates updated
The approximate result is shown while updating
Go to the target unit
Tap the target unit above, press space or Next on the keyboard, or just swipe from the right edge
Tap the result, then select Copy
Swap the values
Tap the = sign
Convert something else
Swipe right and left
We have started from scratch. You have a number in your head, you want it converted stat. You do not want an endless list of categories distracting you.
We ask you for a number and strive to give you the answer with as little taps as possible. Ideally, with zero taps. That is why we check out your clipboard first. We use the units from the previous convertion before you change them. We show you your unit history before you have started typing the unit. We try to guess the target unit i. e. we know that it is natural to convert feet to meters, but miles to kilometers. We learn what you convert to make better guesses over time. We keep currency rates updated, but show you approximate values when offline. We support alternative spelling of many units.
The menu of categories will not get in your way if you don’t ask for it. But if you are curious, tap the source unit and then “select from list”.
Every screen of the app is as informative as possible. Even in the menu we show you the results of possible convertions with each unit.
Blog posts on the design of Ångström:
The update animation
Ångström Style System
Type 45f, get °F in centigrade, feet in meters and more; the result updates live as you refine your query
Dedicated numpad helps to avoid switching between alphabetical and numeric keyboards
Just press space after entering a number to convert all units from your history at once
We keep currency rates updated in background to remain helpful in a flight or in a subway
You don’t need to think about unit categories to convert things, but what if you are just curious?
Author and app developer