Hi all, I have found a free app for Android devices in order to keep our collections (CoinGle: https://play.google.com/store/apps/details?id=com.andual.coingleads). It allows importing collections by means of CSV files and share them with another users. It currently contains a valuable coin database with several countries and currencies (currently above 8000 different coins). This number is currently raising since the app allows users to create their own coins in the app database that is shared between all users. Furthermore, our private collection data is safe since it is not only stored on our mobile but it is also stored on cloud and we can install the app in several devices and all of them will be synchronized. I hope you like it and we can share!