Open Sunsama vs Reclaim.ai
The open-source Reclaim alternative
Open Sunsama is an open-source Reclaim.ai alternative. You place time blocks next to your meetings, or ask any AI agent to plan them. It works with iCloud too, and you can self-host it.
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A task dragged onto Open Sunsama's day calendar next to meetings, then resized to fit
The short answer
Open Sunsama is the Reclaim alternative that plans your day instead of guarding your calendar
Open Sunsama is an open-source Reclaim.ai alternative for people who want to see and choose their day. Tasks live on a board of days. You drag them onto the calendar, next to your Google, Outlook and iCloud events.
We build Open Sunsama, so we put it first — here is why, and where Reclaim fits better.
Reclaim works on top of Google Calendar or Outlook. It books time for tasks, habits and focus, then moves those blocks by priority. If you want that done for you, Reclaim does it well, and Open Sunsama does not.
In short
- A daily planner: a board of days next to your calendar.
- Google, Outlook and iCloud calendars in one view.
- No auto-scheduler: blocks stay where you put them.
- One MCP URL for Claude, ChatGPT, Cursor or any agent.
- Public code, self-hosting and a REST API with API keys.
Should you switch?
Open Sunsama fits people who plan their own day; Reclaim fits teams that want time guarded for them
Both apps put your work on your calendar. The real choice is a smart layer that moves blocks for you, or a planner you run yourself.
Switch to Open Sunsama if you want to see and choose where each block goes, and Reclaim's moves felt hard to follow.
Switch to Open Sunsama if you use iCloud Calendar. Reclaim works with Google and Outlook only.
Switch to Open Sunsama if you want a board of days and a task list, not just events on a calendar.
Switch to Open Sunsama if you want to self-host, or read the code behind your planner.
Switch to Open Sunsama if you plan with Claude, ChatGPT or Cursor, and want one agent for your tasks and time blocks.
Stay with Reclaim if you want habits and focus time booked and defended for you.
Stay with Reclaim if your team needs smart meetings and scheduling links.
Stay with Reclaim if you want tasks synced in from Asana, Jira, Linear or Todoist.
The daily loop
You choose each block, and the day stays the way you planned it
Plan, block, focus, and move fast from the keyboard. Every clip below is a real recording of the app.
Pick today's tasks on a board of days
Your backlog sits next to Today and Tomorrow. Drag the tasks you will do into Today. Anything you don't finish rolls over to tomorrow.
Pick today's tasks on a board of daysSee the kanban board
Guard your own focus time
Drag a task into a free slot next to your meetings, then drag its edge to set the length. That block is your focus time, and it stays put.
Guard your own focus timeHow calendar sync works
Work one block at a time
Start focus mode on the task in front of you. The timer tracks real time, so you see planned vs actual.
Work one block at a timeHow focus mode works
Replan from the keyboard
A meeting landed on your focus time? Press Cmd+K to find the task or jump to a day, and move it in seconds.
Replan from the keyboardSee the command palette
AI native
Any AI agent can plan your tasks and time blocks in Open Sunsama
Paste one URL into Claude, ChatGPT, Cursor or any MCP client, then sign in. Your agent sees your meetings and tasks together and plans around them.
Reclaim has an official MCP server too. It works on your calendar events, and changes wait in a preview for you to approve.
Open Sunsama's server works on your tasks and time blocks, and reads your meetings without changing them. Its code is public, so you can run all of it on your own server.
MCP server URL: https://api.opensunsama.com/mcp
Prompts to try
- Find two hours for deep work every morning this week.
- Plan my day around my meetings. Put my top three tasks first.
- How did my planned time compare with my actual time yesterday?
Tools it calls: get_schedule_for_day, list_time_blocks, create_time_block, update_time_block, list_tasks
Claude plans the afternoon over MCP. Tasks and time blocks appear live.
Feature by feature
Open Sunsama gives you a full planner, iCloud and the code; Reclaim gives you autopilot
Reclaim leads on automation and team scheduling. Open Sunsama leads on control and ownership. Here is each feature side by side.
Open Sunsama gives you a full planner, iCloud and the code; Reclaim gives you autopilot| Feature | Open Sunsama | Reclaim |
|---|
| What it is | A daily planner with a calendar | A smart layer on your calendar |
|---|
| Places tasks on its own | No: You or your agent | Yes: By priority |
|---|
| Habits and focus time defense | No | Yes |
|---|
| Board of days and a backlog | Yes | Task list |
|---|
| Calendars | Yes: Google, Outlook, iCloud | Partly: Google, Outlook |
|---|
| Focus mode with planned vs actual | Yes | Focus time on the calendar |
|---|
| Built-in task integrations | No: Via REST API or your agent | Yes: Asana, Jira, Linear, Todoist and more |
|---|
| Smart meetings and scheduling links | No | Yes |
|---|
| MCP server for AI agents | Yes: Hosted, tasks and time blocks | Yes: Hosted, calendar events |
|---|
| Code you can read and self-host | Yes | No |
|---|
| Desktop apps | Yes: Mac, Windows, Linux | Partly: Web app |
|---|
| Phone | Partly: Mobile web app | Partly: Mobile web app |
|---|
Reclaim facts come from its pricing page, help center and Claude integration page. Reclaim has been part of Dropbox since August 2024. Checked September 2026.
What you give up
Leaving Reclaim costs you auto-scheduling, habits and task sync
Reclaim is a good app. Here is what it does that Open Sunsama doesn't, so you can choose with clear eyes.
Auto-scheduling and habits. Reclaim books time for tasks, habits and focus, then moves those blocks when meetings land. Open Sunsama never moves blocks on its own. You place them, or ask your agent to.
Team scheduling. Reclaim has smart meetings and scheduling links for teams. Open Sunsama is built for one person's day.
Built-in task integrations. Reclaim syncs tasks from Asana, Jira, Linear, Todoist and more on its paid plans. Open Sunsama syncs your calendars only. Other tasks come in by hand, through the REST API, or from your AI agent.
A one-click import. There is no Reclaim importer. Your meetings come across when you connect your calendar. Tasks move by hand, or your agent can create them.
A license for company use. The code is public on GitHub. It uses a non-commercial license: you can read it, run it and self-host it for personal use. Companies need a commercial license. Read the license
How to switch
You can switch from Reclaim in three steps
Plan your first day in Open Sunsama the same morning you sign up.
Create an account, or self-host
Sign up on the web or download the desktop app. Prefer your own server? Follow the Docker guide.
Connect your calendars
Add Google Calendar, Outlook or iCloud in Settings. Your meetings show up next to your tasks, so you see what really fits.
Move your tasks, then pause Reclaim
Add this week's tasks by hand, or ask Claude to create them over MCP. Then pause Reclaim's habits and task blocks, so they don't fill your calendar twice.
Questions before you switch from Reclaim
What is the best Reclaim.ai alternative?
We build Open Sunsama, and we think it is the best pick for most people. It is an open-source daily planner with time blocking that any AI agent can run. FlowSavvy is the closest auto-scheduler for one person, and Motion does more for you. Compare 7 Reclaim alternatives
Is there an open-source Reclaim alternative?
Yes. Open Sunsama's code is public on GitHub, and you can self-host it with Docker for personal use. It has time blocking, focus mode, calendar sync and a hosted MCP server. Self-hosting guide
Does Open Sunsama work with iCloud Calendar?
Yes. Connect Google Calendar, Outlook or iCloud in Settings. Reclaim works with Google and Outlook only. How calendar sync works
Does Open Sunsama auto-schedule like Reclaim?
No. There is no built-in auto-scheduler, so blocks stay where you put them. If you want help, ask your AI agent to place them.
Does Reclaim work with Claude or ChatGPT?
Yes. Reclaim has an official MCP server and a ChatGPT app. Changes made through AI wait in a preview until you approve them.
Did Dropbox buy Reclaim.ai?
Yes. Dropbox announced it bought Reclaim in August 2024. Reclaim still runs as its own app.
Is there a Reclaim alternative with a phone app?
Open Sunsama runs in your phone's browser as a mobile web app, like Reclaim. If you need native phone apps, FlowSavvy, Motion, Morgen and Sunsama have them.
Is Open Sunsama really open source?
The code is public on GitHub. It uses a non-commercial license: you can read it, run it and self-host it for personal use. Companies need a commercial license. See the code
Guard tomorrow's focus time yourself
Put your tasks on the calendar next to your meetings, and let the AI agent you already use help when the day shifts.
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