First version of Android app for TMA Post was released: https://github.com/tmacoin/tmapostapp

TMA Post will be on Android in a couple of months. It might not appear on iOS because of censorship.

Take a look at TMA Post desktop application: https://github.com/tmacoin/tmapost. It is running on top of the TMA blockchain. For a limited time here is a web-based version of it: https://tma.tmacoin.net/ with a smaller set of features. The web-based version will be removed as soon as smart phone applications created.