Can AI replace Todoist?
A personal task app with projects, recurring due dates, filters, and reminders is a one-sitting/weekend build; collaboration and sync polish are the product moat.
Replacing a paid app means you set it up and keep it running: hosting, updates and backups can be on you. What you give up.
01What it costs
Checked Aug 14, 2026 · source: todoist.com.
| Plan | Monthly | Billed yearly | What you get |
|---|---|---|---|
| Beginner | Free | Free | 5 personal projects; 3 filters; 1 week of activity history; 5 MB files; 5 people/project. |
| Pro | $7 | $5/mo | 300 personal projects; 150 filters; 100 MB files; unlimited activity history; 5 people/project. |
| Business | $10 | $8/mo | 300 personal projects/member; 500 team projects; 250 people/team project; 1,000 members + 1,000 guests. |
Hidden costs: Business charges per member; taxes can apply.
02Could AI build it for you?
The core job: Create task/project tables, natural-language due date parsing, recurring rules, reminders, filters, and local notifications.
What a working version needs:
- local or hosted database
- date parser
- notification channel
- optional mobile/desktop wrappers
Strong yes; familiar product where feature creep is the real limit.
03What you'd give up
- native apps
- offline sync
- collaboration
- reminders reliability
- integrations
- years of UX polish
They pay because task capture must be fast everywhere and reminders cannot miss.
04Free and cheaper alternatives
A polished free task manager, paid for with a Microsoft account rather than money
Versus paying: Microsoft To Do is weaker than Todoist on labels, custom filters, natural-language recurrence, integrations, and collaborative project workflows.
microsoft.com →A capable Todoist replacement once you accept becoming its hosting department
Versus paying: Vikunja adds hosting administration and has less polished native mobile, offline, natural-language, and integration support than Todoist.
vikunja.io →A local task manager with timeboxing, Pomodoro, and no account begging to be created
Versus paying: Super Productivity is primarily a local personal tool and is weaker than Todoist for shared projects, mobile capture, recurring-date language, and integrations.
super-productivity.com →Things minus the polish tax, provided every device in sight has an Apple logo
Versus paying: Apple Reminders is confined to Apple’s ecosystem and is less capable than Todoist for cross-platform collaboration, integrations, and complex filters.
apps.apple.com →05The build prompt
The complete build prompt, plus 11 step-by-step prompts from research to launch, a design system file, a page-by-page spec, the data model and a launch checklist.
Get the Build Kit · $9 →One-time payment. Delivered on screen and by email.
06Free open-source starting points
- Vikunja: Open-source task/project management app suitable as a Todoist-style alternative.
Prices change; confirm on the vendor's site before you decide.
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