When comparing Chatterer vs ChatSecure + Orbot, the Slant community recommends Chatterer for most people. In the question“What is the best free CRM?” Chatterer is ranked 3rd while ChatSecure + Orbot is ranked 5th.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Adds radio chatter
Pro Excellent atmospheric touch
Pro Passed EFF's security review
To pass EFF's security review ChatSecure had to encrypt data in transit, the encryption had to be end-to-end, the app needed to provide forward secrecy, app's source code has to be open to independent review, users have to be able to verify contact's identities even with the service provider compromised, app's cryptographic design has to be well documented and app's source code has to have been audited in the last 12 months.
Pro Free and open source
ChatSecure is free and open source, enabling anyone to verify its security by auditing the code.
Pro Works with popular chat services across mobile and PC
ChatSecure works with Google Hangouts, Facebook messaging, Jabber and other popular messaging service, making for a convenient way to use secure chatting.