Project and task management decision
Sunsama
A technically capable user can build a useful personal daily-planner with calendar sync and basic analytics (reasonable to self-host), but reproducing Sunsama's enterprise features, broad integrations, mobile apps, polish, and SOC2-level compliance is costly—so keep paying for those or accept a narrower replacement.
Visit website↗Open-source builds that already do this
Every project below is open source and already does this job today. Fork one, self-host it, or take the parts you need — the build prompt further down assumes an empty file, and this is the shortcut past that. Licences differ; check the one on each card before you ship.
What a replacement has to do
- Plan each day by pulling tasks/events from connected tools, timebox tasks onto a calendar, work through the day's plan with focus tools, and record daily completions/analytics.
What it still won’t have
- Wide, maintained integrations catalogue (Asana, Jira, Slack, etc.)
- Native mobile & desktop apps at production quality
- SOC2 compliance, enterprise SSO/SAML and audit features
- Polish, reliability, and support SLAs of a mature commercial product
- Built-in AI features for auto-estimates/auto-scheduling
What remains hard
- Compliance and regulation
Sunsama is SOC2 compliant
- Brand trust
Trusted by professionals who want to do their best work every day.
First-year cost
Keep paying
Paying is—cheaper in year one.
On cash alone, building overtakes the subscription at 3 seats.
Money you would actually spend
Time you would spend
—
What you would spend
What we assumed
The verdict above measures whether you could build it. This one is only about money.
Runnable build prompt
Build a minimal daily-planner web app using Node.js (Express), React, PostgreSQL, and Deploy on a $20/month VPS. Implement: (1) Google OAuth and bi-directional Google Calendar sync (read/write events), (2) a task import endpoint that accepts CSV and maps to tasks stored in Postgres, (3) a drag-and-drop day-planning React UI that timeboxes tasks onto a calendar view and saves plans server-side, (4) a Pomodoro-style focus timer and a daily-complete workflow that logs completed tasks, and (5) a simple analytics page aggregating daily/weekly completed tasks and time spent. Out of scope: native mobile apps, enterprise SSO/SAML, SOC2 certification, and broad third-party integrations beyond Google Calendar. Include error handling for network/API failures, retry/backoff for calendar sync, server and integration unit tests, and a basic CI pipeline for deployment.
How we checked
How the score was reached
- Partly verdict base52
- An open-source build was found+5
- 5 cited sources+3
- Price verified on pricing page+3
- Hard moats found in the evidence-3
- Evidence score60
The base comes from the verdict. Everything under it is a check that either happened or did not, and each one is a fact frozen in this record rather than a judgement made at render time — so the same evidence always produces the same number.
How scoring works →Cited sources · 5
Every page the run actually retrieved.
- official productSunsama homepage
- official pricingSunsama pricing
- official productSunsama for Product Leaders
- open sourcemakeplane/plane
- open sourcechrisvel/tududi
Integrity checks
What held up, and what did not.
