DayWise vs Open Sunsama

DayWise is an Android daily planner that schedules tasks around a calendar and adjusts the plan when commitments change. Its scheduling considers task priority, deadlines, calendar events, and energy patterns to find time slots. Google Calendar connects directly, and the app plans around existing events. Users can also drag tasks to another slot, change their duration, or move them to tomorrow. DayWise is designed for individuals, including students, freelancers, and professionals, and is available through Google Play for Android 8.0 and later. The Free plan costs nothing and includes manual scheduling and core task management; a 7-day trial is listed. The privacy policy says task information is sent to third-party AI services, including OpenAI, for scheduling suggestions, and is not used to train third-party models under its agreements. Google Calendar events are accessed read-only and are not stored beyond scheduling needs. DayWise also says it encrypts data in transit and at rest and does not sell personal information.

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.