When comparing Mailplane 3 vs Canary Mail, the Slant community recommends Canary Mail for most people. In the question“What are the best e-mail clients for macOS?” Canary Mail is ranked 6th while Mailplane 3 is ranked 15th.
Ranked in these QuestionsQuestion Ranking
Pro Doubles as a calendar
Mailplane 3 combines Google Calendar and Gmail within a single app.
Pro Can work with mutiple Gmail accounts simultaneously
The tabbed interface included in Mailplane 3 lets users work with as many Gmail accounts simultaneously as they want.
Pro Supports many plugins
Functionality and features can be extended by using plugins.
Pro Easy to use
Mailplane 3 looks just like Gmail's web UI and even imports Gmail shortcuts. If Gmail shortcuts aren't ideal for the user, those of Mac can be used instead.
Pro Pretty Good Privacy or PGP built-in
Pro Gorgeous and intuitive
Pro No personal data stored on servers
No access tokens, passwords, attachments or email itself is stored on Canary servers.
Pro Local email database is encrypted on disk
Canary stores your local email database encrypted.
Con Can freeze very often
Con Gmail only
Mailplane 3 is a Gmail-only client. It does not support other email providers.
Con Poor text editing capabilities
The cursor is laggy so you're better off using keyboard shortcuts.
Con Windows moves randomly
When you create a new email, the new windows is often misplaced so that you have to move it to reach the "Send" button.
Con Poor handling of new emails
You sometimes need to wait very long before your email actually gets delivered.
Con Show NO show
It'll show I have new email as a counter but I'm not able to view them.