You are looking for an app to help you concentrate and everything you find is complicated, distracting apps that afterwards keep asking you to pay for things you dont really need?
That time is over.
Slim Pomodoro is just that: a simple pomodoro app that helps you concentrate.
IT IS FREE AND IT WILL EVER BE.
It has been designed for being easy to use and not distracting. Just spend a couple of seconds setting your next task and be ready for getting the job done.
Moreover, because it doesnt include any not requested functionality, it is extremely light (it is less than 1 MB).