Sadly, the author of TextSecure doesn't think so. He thinks side-loading of apps and alternate app stores are a problem (he says that allowing installs that don

Sadly, the author of TextSecure doesn't think so. He thinks side-loading of apps and alternate app stores are a problem (he says that allowing installs that don't come from Play store is "returning to desktop security model which is completely broken" [1]). He also opposes TextSecure being on f-droid, etc. [1]: https://github.com/WhisperSystems/TextSecure/issues/127 https://github.com/WhisperSystems/TextSecure/issues/127