Turn your smartphone or tablet into a large format bulletin board!
Choose your color according to your environment!

New v.0.1.4.0: MaxiChrono integrates a countdown timer
New v.1.0.0.0: Countdown countdown with counting series
New v.1.1.0.0: Display management, reverse protection, choice of sound type by multiple pressure
New v.1.2.0.0: Clock Mode
New V.1.3.0.0: Display mode elapsed time since the end of a countdown, rotaion / recovery mode

works on smartphone and tablet all dimensions