Sometimes, less is more, and that could well be the case with Unit Converter. Rather than presenting a long list of units for you to pick from, it displays just a few at a time, which you can edit to your liking.

Units are grouped into four broad categories: Basic, Living, Science, and Misc. These are presented as tabs, under which are four unit types. Apart from the Basic tab, you can change what’s displayed under a tab by tapping Favorites at the top. You’re still limited to four unit types, but there’s an extensive list to choose from---not as many as some other apps but enough for everyday use.

Unit Converter isn’t the most advanced unit conversion app, but it’s easy to navigate and good for anyone who converts the same things a lot.