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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.