Mandarin IM is a client to communicate on ICQ. Now you can be online 24 hours a day, Mandarin will run itself in the background to receive and deliver messages, not consuming the battery of your phone. You can type messages to friends, send photos, videos, even if now there is no network. Mandarin itself will deliver them as soon as possible.
Forget about disconnections from the network - Mandarin saves the state if the network down, and all your actions carefully preserved and will be executed when network became available.
Tracking: The application tracks and reports your activity to somewhere – usually either without your consent, or by default (i.e. you’d have to actively disable it). It’s commonly used for when developers obtain crash logs without the user’s consent, or when an app is useless without some kind of authentication.
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