Delegate your day.
Otto Mail vs Sunsama
Sunsama guides you through planning the day. Otto works the mail that fills it, and asks before it sends.
You just approve.
The short version
- Sunsama is a daily planner. Otto is a mail app with a calendar and tasks next to the inbox, and an assistant.
- Pick Sunsama for a deliberate daily planning ritual. Pick Otto to work your mail with its calendar and tasks.
- Sunsama doesn't have a free plan. Otto Free covers one account.
Which one fits you
Pick Otto if
You want the inbox, the calendar and the task list in one app, with an assistant that prepares replies and meetings for your approval.
Stay with Sunsama if
You want a deliberate daily planning ritual, with tasks pulled in from tools like Todoist, Asana and Linear.
At a glance
Prices in USD where listed, as of Sept 2026 unless a row gives a later date. — means not verified here, not that a feature is absent. Confirm current offers and billing intervals before subscribing.
| Compare | Otto Mail | Sunsama |
|---|---|---|
| Price (USD where listed, checked Sept–Nov 2026) | Free; Plus $6.99/month or $55.99/year; Pro $19.99/month or $159.99/year | Pro $22/month, or $17/month billed yearly, per person (reviewed 2 November 2026) |
| Platforms | Web, iOS | iOS, Android, macOS, Windows and Linux |
| Gmail + Outlook | Both supported; one account on Free | Gmail and Outlook, with Google and Outlook calendars |
| Approval model | Review AI actions; chosen senders may auto-reply under an explicit rule; check the recorded result afterward. | You plan the day yourself in a guided ritual; AI details not published |
| Free tier | One connected Gmail or Outlook account with core mail, calendar and tasks, plus an AI allowance. | No free plan; a 14-day trial with no card |
| Calendar / tasks | Calendar plus Google Tasks or Microsoft To Do for the selected account | Daily planning, calendar, and tasks pulled in from other tools |
Price (USD where listed, checked Sept–Nov 2026)
- Otto Mail
- Free; Plus $6.99/month or $55.99/year; Pro $19.99/month or $159.99/year
- Sunsama
- Pro $22/month, or $17/month billed yearly, per person (reviewed 2 November 2026)
Platforms
- Otto Mail
- Web, iOS
- Sunsama
- iOS, Android, macOS, Windows and Linux
Gmail + Outlook
- Otto Mail
- Both supported; one account on Free
- Sunsama
- Gmail and Outlook, with Google and Outlook calendars
Approval model
- Otto Mail
- Review AI actions; chosen senders may auto-reply under an explicit rule; check the recorded result afterward.
- Sunsama
- You plan the day yourself in a guided ritual; AI details not published
Free tier
- Otto Mail
- One connected Gmail or Outlook account with core mail, calendar and tasks, plus an AI allowance.
- Sunsama
- No free plan; a 14-day trial with no card
Calendar / tasks
- Otto Mail
- Calendar plus Google Tasks or Microsoft To Do for the selected account
- Sunsama
- Daily planning, calendar, and tasks pulled in from other tools
Sunsama and Otto Mail both want you to have a calmer day, by different routes. Sunsama is a daily planner: each morning it walks you through choosing what fits in the day, and it pulls tasks from other tools into one list. Otto is a mail app with a calendar and tasks, on your existing Gmail or Outlook account. Its assistant drafts and books, and files things away, always for your approval.
Otto is ours, so weigh our side. If the planning ritual is what you value, Sunsama does that better. If you're searching for a Sunsama alternative that also handles email, that's Otto.
Where Sunsama is stronger
Sunsama's homepage describes guided planning and an end-of-day shutdown, plus focus timers and time-spent analytics. It lists integrations with Todoist, Asana, ClickUp, Linear, Jira, Notion, Slack and more, so tasks from many tools collect in one list. Otto's tasks live in Google Tasks or Microsoft To Do for the selected account, and Otto doesn't have a daily planning ritual.
Where Otto fits
Sunsama lets you drag emails into your task list to deal with later. Otto goes further into the mail itself. You work the inbox there (read, reply, sort, search), and the assistant prepares the reply or proposes a meeting on your Google or Outlook calendar. Every send comes back as a card for you to approve, and so does every booking or change. See how Otto's assistant works.
Price and fit
The Sunsama pricing page lists Pro at $22 a month, or $17 a month billed yearly, per person, with a 14-day trial and no card. It says there's no free forever plan. Otto Free covers one connected account with core mail plus calendar and tasks. Plus is $6.99 a month and Pro is $19.99/month.
Keep reading
- Mail with calendar and tasks in one app
- Otto's plans
- The calendar app for Gmail and Outlook
- Gmail and Outlook calendar apps compared
- The to-do app for email
- To-do apps for email compared
Questions, answered
Does Sunsama have a free plan?
No. Its pricing page says there's no free forever plan, and offers a 14-day trial with no card. Otto has a Free tier for one connected account.
Is Sunsama an email client?
No. Sunsama is a planner that can turn emails into tasks. Otto is the email client. Calendar and tasks sit beside the inbox.
Try your next step in Otto
Core mail, calendar and tasks are free. AI has an allowance.
Open Otto