Spark Mail review

Spark is the most provider-flexible app in this list. It connects Google, Outlook, Exchange, iCloud, Yahoo and any IMAP account, and the free plan already includes the Smart Inbox and unlimited accounts. Spark +AI adds a writing assistant, thread summaries and translation, and the AI Assistant can find, summarize and act on mail when you ask. Plus, at $10 per user per month on the US pricing page, adds advanced productivity tools, team collaboration, templates and 40 AI Meeting Notes. Pro at $20 adds Auto-Drafts, Autopilot, read statuses and a HubSpot integration. Focus features such as Gatekeeper for new senders, Group by Sender and Set Aside are a strength. The catch is that the feature most buyers associate with AI email assistants, drafts waiting for review, sits on Pro, and Readdle does not publish an integration count.

Who it is for

People who manage several accounts across providers and want AI in a polished email client.

Price

Free plan; Plus $10 per user per month; Pro $20 per user per month.

$10 / month per user $120 / year
Quoted from the vendor pricing page on November 6, 2026.

Key features

• Spark +AI writing assistant, summaries and translation
• AI Assistant that finds, summarizes and acts on inbox content
• Auto-Drafts and Autopilot on the Pro plan
• Smart Inbox, Gatekeeper and Group by Sender
• Team collaboration with private comments and delegation

Strengths and weaknesses

• Strength: Free plan with unlimited email accounts and Smart Inbox
• Strength: Works with Google, Outlook, iCloud, Exchange, Yahoo and IMAP
• Strength: Plus includes AI Meeting Notes and team collaboration
• Weakness: Auto-Drafts need the $20 Pro plan
• Weakness: Plus includes 40 AI Meeting Notes rather than unlimited
• Weakness: Integration count is not published

Key facts

• Free plan: Smart Inbox, unlimited email accounts
• Plus: $10 per user per month, $120 per year
• Pro: $20 per user per month, $240 per year
• Users: 21+ million, according to Readdle

Where it ranks

Spark Mail is No. 5 in our Best AI Email Assistants verdict.