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April 11, 2025
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Cal.build

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The new way to build calendars
I built Cal.build after getting frustrated with planning documents shared as PDFs usually from people outside my daily workflow.
I wanted a minimal way to go from idea -> schedule -> live calendar.

You type what you want to plan, it returns a calendar with a .ics URL you can subscribe to (Google Calendar and others).

Example:โ€œPlan a 5-day team summit in Costa Rica starting May 1st, including team building activities and project planning sessions.โ€

Returns a full schedule with editable events, a public URL, and live updates.

Features: 1. Text-to-calendar conversion 2. Subscribable .ics link 3. Shareable and auto-updating

Stack: Next.js, Supabase, AI SDK, deployed on Vercel.

Would appreciate feedback.

https://www.cal.build/
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Pricing

Pricing model
Freemium
Paid options from
$9.99/month
Billing frequency
Monthly
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Reviews

4.8
Average from 5 ratings.
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Cal.build was manually vetted by our editorial team and was first featured on April 11th 2025.

Pros and Cons

Pros

Customized calendar creation
Broad application range
Streamlined planning process
Automates planning tasks
Integrated workout schedule planning
Integrated diet schedule planning
Integrated study planning
Direct help for travel planning
Project timeline organization
Learning paths organization
Continuous learning mechanism
User schedule adaptation
Prioritizes personalization
Maintains user-friendly interface
Prioritizes data security
Robust privacy policy
Efficient time management
Aids in fitness tracking
Facilitates diet planning
Supports study planning
Simplifies travel planning
Enhances project management
Develops learning paths
Secures user data

View 19 more pros

Cons

Lacks multi-platform support
No API integration
Limited to calendar functions
Lacks third-party app integration
No real-time collaboration feature
Lacks version tracking
No mass data import/export
No offline functionality
Limited customization options
No multilingual support

View 5 more cons

7 alternatives to Cal.build for Calendar

View 6 more alternatives

Q&A

How does cal.build use AI to create custom calendars?
What types of schedules can I create with cal.build?
Can cal.build help me plan my workouts and diet?
How can cal.build assist in scheduling study regimes or learning paths?
Is cal.build suitable for managing project timelines?
Does cal.build adapt to changes in my schedule over time?
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