I’m happy to announce that CardBoard Index Cards has been dowloaded by 20’000 users! What else? It has a solid 4 star rating on Google Play now from 169 user ratings.
Go to Google Play with this link.
Or check the CardBoard page on leanself.org.
Or, even better: learn how to use it for your personal kanban solution.
Please have a look at the app and rate it if you have not done that yet.