▲ ▼ Palm OS like timesheet app for modern mobile OS
Palm had a set of "rules" for programmers as to how the UI should work - and one was that nothing should take more than 3 clicks, IIRC. The needs I have for a time sheet app is to simply keep track whenever I change what I work on during the day. I may be working on project 1234, then someone wants me in a meeting on project 6566 work package 312, and my time app must keep track of that. The TimeSheet app does that in the simplest way possible - I do exactly one click, and it tracks the other project.
During the day I may have to work on a number of projects, for shorter or longer periods. I have a list of those projects and work packages in TimeSheet. When the time comes to input all of that into the corporate time system TimeSheet presents me with the total sum of all work packages for each day (and other ways, if I need them).
It's extremely simple. I just can't find anything with the same easy functionality on Android or elsewhere. They seem to have a different focus, and way too many clicks to go through.