Open Sunsama vs Power Planner
Open Sunsama
opensunsama.com
Power Planner
powerplanner.netSide by side
| Figure | Open Sunsama | Power Planner |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | — |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 2 | 3 |
| Spec score · Daily Planner Apps | 8.8 (#18) | 9.2 (#7) |
| Calendar sync | Yes | Yes |
| Intended users | The maker describes it as a fit for people who want to plan each day with time blocks and let an AI agent help. | The maker describes Power Planner as built specifically for students to manage school schedules, assignments, grades, and GPA. |
| Product | Open Sunsama is a task manager and daily planner with a board of days and calendar time blocking. | Power Planner is a homework planner for students that syncs assignments, class schedules, grades, and GPA across devices. |
| What it does | Open Sunsama is a daily planner and task manager organized around a kanban board of days, calendar time blocking, and focused work. | Power Planner organizes student assignments, schedules, grades and GPA across supported devices. |
Plans
Power Planner
- FreeFree
- Premium$4.99, paid once
- Premium (Lifetime)$4.99, paid once
In their own words
Open Sunsama
Open Sunsama is a task manager and daily planner built around a board of days and calendar time blocking. Move tasks from a backlog to a daily board; unfinished work rolls over to tomorrow. Focus mode times a task and tracks actual time against its estimate. It syncs Google Calendar, Outlook, and iCloud, with support for multiple accounts. Time blocks stay in Open Sunsama rather than being copied to Google or Outlook calendars. Its hosted MCP server connects to Claude, ChatGPT, Cursor, and other MCP clients through OAuth and provides 24 tools. The REST API covers tasks, subtasks, and time blocks, with selectable API-key scopes. Users can also self-host the web app, API, MCP server, and PostgreSQL database using Docker Compose. The free plan costs nothing for personal use. The non-commercial license limits production use by companies, and there is no one-click export button. Desktop apps are available for Mac, Windows, and Linux; phones use the mobile web app, as no native phone app is available yet.
Power Planner
Power Planner is a student homework planner that syncs assignments, class schedules, grades, and GPA across devices. Students can enter homework and exams with due dates and receive automatic reminders, then add class times and room locations to view a weekly schedule. The app tracks grades by class, calculates GPA across semesters, and includes a “What If?” mode for planning ahead. Classes and homework can appear in Google Calendar. It supports standard and rotating A/B week schedules, but not fully custom non-A/B class schedules; the maker also says there is no Canvas or Blackboard integration. The Free plan costs nothing and is limited to one semester, five grades per class, one repeating bulk task or event entry, and one photo attachment per item. Premium is a one-time lifetime purchase listed at $4.99 a month, with unlimited semesters and more than five grades per class. Power Planner is available on Android, iOS, Windows, Mac, and web browsers, with web marked beta. An online account is optional; local-account data stays on the device.