When comparing Wire vs Allo, the Slant community recommends Wire for most people. In the question“What are the best messaging apps for iOS?” Wire is ranked 12th while Allo is ranked 24th.
Ranked in these QuestionsQuestion Ranking
Pro Libre/open source
Pro End-to-end encryption
Pro Clean, modern interface
Pro Swiss legislation
Registered in Switzerland.
Pro Completely free for private use
Check out their pricing. It cannot be cheaper for secure private communication.
Pro Intuitive user interface
Wire's user interface is quite intuitive to use, still it has everything required for a complete experience. Settings are very clean and allows you to turn on/off some features which might be disturbing for some, like link previews and emoji conversion.
Pro Persists history
Your chat history is persisted by default (you can send incognito end-to-end encrypted self-destructing messages instead if you so desire).
Pro Allows self-destructing messages
You can send messages that will be removed from both parties after a defined period of time.
Pro Allows end-to-end encrypted incognito messages
The assistant is a bot that can help book, look up locations, restaurants, set up calendar events, etc.