Essential Android apps for Scrum Masters

Native mobile apps:

Post-it®

https://play.google.com/store/apps/details?id=com.mmm.postit

Decision Roulette
https://play.google.com/store/apps/details?id=es.treebit.decisionroulette

Giant clock
https://play.google.com/store/apps/details?id=com.bojankogoj.giantclock

HUGE Stopwatch
https://play.google.com/store/apps/details?id=huge.stopwatch

Large Countdown Timer (Timesloutely)
https://play.google.com/store/apps/details?id=com.mta.countdown

Multi Timer - Stopwatch Timer
https://play.google.com/store/apps/details?id=com.egg.multitimer

Liberating Structures (LiSA)
https://play.google.com/store/apps/details?id=de.holisticon.app.ls

Mobile versions of browser apps:

Miro - formerly RealtimeBoard Online Whiteboard
https://play.google.com/store/apps/details?id=com.realtimeboard

Kanban Tool
https://play.google.com/store/apps/details?id=com.kanbantool

Trello
https://play.google.com/store/apps/details?id=com.trello