Project and task management decision
TickTick
A minimal, single-user TickTick-like web app (tasks + calendar + reminders) is realistic for a small technical team to build and run, but reproducing TickTick's cross-platform native apps, large-scale sync, integrations, and polish is a larger effort better served by continuing to pay.
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. All TickTick alternatives, with the arithmetic →
What a replacement has to do
- Create and manage tasks with due dates, view them on a calendar, and receive reminders/notifications.
What it still won’t have
- Polished native mobile apps and watch support
- Cross-device real-time sync at scale and conflict resolution
- Large theme catalogue and UI polish
- Extensive third-party integrations (e.g., deep Notion, calendar two-way sync)
- Advanced premium features (habit library, Pomodoro analytics)
What remains hard
- Product polish and ongoing maintenance
First-year cost
Keep paying
Paying is—cheaper in year one.
On cash alone, building overtakes the subscription at 5 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 single-user task manager web app using PostgreSQL, a Python (FastAPI) backend, React frontend, and Celery (Redis) for background jobs. In scope: REST API to create/read/update/delete lists and tasks, task fields (title, notes, due date, repeat), quick NLP date parsing, calendar month/week views, task list view, email reminders via SMTP (or SendGrid), and export of tasks as iCal. Out of scope: native mobile apps, multi-user real-time conflict-resolution, enterprise integrations. Include input validation, error handling, background job retries, and automated tests for API endpoints and reminder scheduling.
How we checked
How the score was reached
- Partly verdict base52
- An open-source build was found+5
- 4 cited sources+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 · 4
Every page the run actually retrieved.
- official productTickTick: A To-Do List and Calendar to keep you organized
- official docsFeatures - TickTick
- open sourcesuper-productivity/super-productivity
- open sourcemanuelernestog/weektodo
Integrity checks
What held up, and what did not.
