When comparing Allo vs Hop, the Slant community recommends Hop for most people. In the question“What are the best messaging apps for iOS?” Hop is ranked 27th while Allo is ranked 30th. The most important reason people chose Hop is:
The app takes your email provider such as Gmail, Yahoo, AOL, or iCloud and uses their infrastructure and your established contact-list there and creates a messaging platform.
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Pros
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
Pro Assistant
The assistant is a bot that can help book, look up locations, restaurants, set up calendar events, etc.
Pro Full quality pictures
Pro Turns your e-mail into mobile messaging
The app takes your email provider such as Gmail, Yahoo, AOL, or iCloud and uses their infrastructure and your established contact-list there and creates a messaging platform.
Pro Users can see when another person is typing
Users can even see when another person is typing, as you would with iMessage or chat.