Time your tea with material style. Shows you temperature and time quickly.
the app is FOSS - you can find the source-code here: https://github.com/ligi/MaterialTeaTimer
have a great tea!
Market link: org.ligi.materialteatimer
Web site: http://ligi.de
Market downloads: 1,000-5,000
Market rating: 4.1 / 5.0