An Idea for a unit converter (Updated)
I was watching a TEDx talk some time ago where an app developer tells how he learned to code and discussed his transportation app.
I liked the intuitive way he made his app, and I found almost all unit converters require too many steps to get the results. For example, this app requires you to:
- open the app
- choose category
- choose 'from' unit
- choose 'to' unit
- tap edit field
- type value
Some unit converters try to do away with selecting a 'to' unit by having a field next to all units and type in one field to get results in all the others.
An idea similar to the one used by the transportation app is to have units in a circle or another arrangement where you can swipe from one unit to another:

To improve the UX even further, you can:
- automatically focus to edit field on startup (pop up numerical keyboard).
- Allow pinning most used categories (and/or hide unused ones) and open on last/chosen category on startup.
- Allow hiding unused units.
- Allow a custom/combined categories, where the user can put unit pairs/groups from multiple categories. E.g. Celsius-Fahrenheit, Pound-Kg, a few length units, etc.
This way, to do most of their conversions, the user only has to:
- open app (on custom category)
- type value
- swipe between desired units
What do you think? :)
It might be added someday in the far future. Maybe as part of the calculator, maybe not. Dont expect having it anytime soon though.
OK, thanks.
I would like for this idea to see daylight. Do you know any dev who might take it up?
not really. There are a lot of unit converters out there, just search for some.
I did :) I tried dozens of them. I didn't find FOSS/good ones with that feature.
Thank you for your prompt responses by the way.