timeCalc Lite is a free Android app developed by tpp.12finish, designed solely for calculating time. The app is easy to use and can be used just like any other calculator. It can be useful for both personal and business purposes, such as calculating overtime.

The app's main feature is its simplicity. It has an uncomplicated interface, making it easy to navigate. It does not include a calculation function for the second bit, but the developer offers a more advanced version called timeCalc Advance for those who need it. It's important to note that timeCalc Lite is free software and should be used at your own risk.