All our applications support phones and tablets, including no-wifi devices.
Unofficial alpha apps for Windows Phone can be found below.
For the moment we are focusing on open sourcing the things that allow developers to quickly build something using our API. We started with Android and Linux, since these platforms are the most open, recently we published the iOS app code as well. We will be releasing more code eventually.
TL binary data serialization base classes.
Telegram-tl-core on GitHub »
TL-Builder (TL to Jar compiler) for TL binary data serialization.
Telegram-tl on GitHub »
MTProto implementation for Java.
Telegram-mt on GitHub »
Java library which allows you to perform Telegram API RPC calls.
Telegram-api on GitHub »