Inbox Zero
6.8#14 in ai email assistantsFrom $20 a monthAndroidiOSWebAPI
VisitInbox Zero vs Mailbutler Smart Assistant
Mailbutler Smart Assistant
8.9#2 in email clientsFree planFree planAndroidiOSWebExtension
VisitWhat both publish
| Fact | Inbox Zero | Mailbutler Smart Assistant |
|---|---|---|
| Headquarters | Newark, Delaware, United States | Berlin, Germany |
Inbox Zero plans
- Starter$20 a month
- Plus$35 a month
- Professional$50 a month
- EnterprisePriced on request
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
Pick Inbox Zero if…
You want what its maker publishes above — check its page for the details.
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.