Mailbutler Smart Assistant
8.9#2 in email clientsFree planFree planAndroidiOSWebExtension
VisitMailbutler Smart Assistant vs Synapse
What both publish
| Fact | Mailbutler Smart Assistant | Synapse |
|---|---|---|
| Free plan | Yes | No |
| Headquarters | Berlin, Germany | Turin, Italy |
| Integrations | Business plans sync tracking events with HubSpot and Salesforce and support Google Analytics 4 UTM data. | Listed plugins include Asana, ClickUp, Google Calendar, and Reminders; the site also describes adding integrations in Rust. |
| Product | Mailbutler presents Smart Assistant as an AI email assistant for Apple Mail, Gmail, and Outlook. | Synapse is a Windows email client with on-device AI. |
Mailbutler Smart Assistant plans
- StarterFree
- Professional$9 a month
- Smart$14 a month
- Business$32 a month
- Professional (yearly billing)$7 a month
- Professional (monthly billing)$9 a month
Synapse plans
- Synapse€4.99, paid once
Pick Mailbutler Smart Assistant if…
It suits people who want AI drafting, reply, summary, and task-finding tools in Apple Mail, Outlook, or Gmail. Check the supported operating systems and subscription requirement before choosing it.
Pick Synapse if…
You want what its maker publishes above — check its page for the details.