https://play.google.com/store/apps/details?id=com.glufke.kammentgo KammEntGo is a simple to use App for timekeeping and accounting of your working time. Entries are created and managed with a view clicks. The stored working time can be booked to accounts and the accounting lists can be easily exported to your PC or whereever you need the data. The data is exported as a zip file which contains csv file which can be opened with any spreadsheet software. The data is kept in simple text file on the Android device and there is no communication with an external server.