Microsoft Solitaire Collection launched on iOS and Android
Since this is a collection, you will be able to play multiple solitaire variations. According to Microsoft, five of the best Solitaire card games are now available for Android and iOS users: Klondike, Spider, FreeCell, Pyramid and Tripeaks.
If you really want to play at a “professional” level, you can even benefit from Xbox Live integration. This means that you can sign in with your Xbox Live gamertag or Microsoft account and earn Xbox Live achievements and Gamescore.
The Xbox Live integration also enables players to compete with friends, as well as continue playing on any iPhone, iPad or Android device while on the move since the progress and game data are saved in the cloud.
So, if you want these features like cloud data save or the ability to compete with friends, you will need an Xbox Live account, which is available for free.
Keep in mind that while the game is available for free, it does come with ads. However, to celebrate the global launch of the game Microsoft offers Android and iOS players one free month of Premium Edition ($1.99 value), which includes no ads, game boosts and double coins for all Daily Challenges.
source: Major Nelson
Things that are NOT allowed: