This app lets you convert more than 900 units. For a better overview, they have been divided into 33 categories. The list is quite impressive and ranges from common things like temperature or weight, all the way to very specific ones like cooking or donkey power. The 164 included currencies are automatically updated. The app also automatically determines your current location to provide you with the relevant units.
Simple search functions quickly display what you need to know: Currencies may be searched for by country, units by name or code. If you use a specific category on a regular basis, it can be captured in the set up menu as default. When you open the app the next time, it appears directly on the screen.