Vimcal
Calendar Assistant
The world's fastest calendar for remote work
Like Cal.build, Vimcal is in the Calendar Assistant category. Both are freemium. Worth comparing on the detail page.
We've curated 49 of the best alternatives to Cal.build, ranked by feature overlap, topic similarity, user ratings, and popularity. Vimcal, ReclaimAI, and Kali lead the list as the closest matches.
Updated May 18, 2026
The list includes 3 free alternatives, 45 freemium, and 1 paid, so whether you're looking for a no-cost replacement or a more capable paid tier, there's an option to compare. Cal.build itself is freemium, which makes freemium alternatives the most natural starting point.
Many of these tools cluster around use cases like Free + From $9.99/mo, Time Management, Personalization, and Productivity — the same problem spaces Cal.build addresses. Cross-referencing tools that overlap on multiple topics gives a more reliable signal than category alone, because two products in the same category can still serve very different workflows.
Our ranking weighs eight signals: shared category, topic overlap, feature overlap, name and description text similarity (via PostgreSQL's pg_trgm and tsvector), Bayesian-smoothed user ratings, pricing-model match, popularity, and editorial overrides. Scores are then normalized within each tool's own candidate pool so the top match always represents the strongest available alternative.
Use the table of contents below to jump to free or paid alternatives, or scroll down to compare each option side-by-side with Cal.build.
Ranked by compatibility score
Calendar Assistant
The world's fastest calendar for remote work
Like Cal.build, Vimcal is in the Calendar Assistant category. Both are freemium. Worth comparing on the detail page.
Calendar Assistant
Smart scheduling app that creates 40% more time for teams.
Like Cal.build, ReclaimAI is in the Calendar Assistant category. Both are freemium. Worth comparing on the detail page.
3 free and 45 freemium options.
1 paid option.
1 paid alternative to Cal.build on /tools/cal-build/alternatives.
25 additional candidates
Vimcal ranks as the highest-scoring alternative to Cal.build, based on shared category, topic overlap, feature similarity, and user ratings. Ratings are still being collected for this tool.
Yes — 3 fully free and 45 freemium alternatives are available, including Vimcal, ReclaimAI, and Kali.
Vimcal is similarly priced (freemium) and sits in the same category (Calendar Assistant). View its detail page to compare features, integrations, and reviews side-by-side.
Top Calendar Assistant alternatives include Vimcal, ReclaimAI, Kali, and Toki AI. These tools share the same primary category and have meaningful topic overlap with Cal.build.
Neither Cal.build nor Vimcal has user ratings yet — be the first to review either tool to help future visitors compare them.
Calendar Assistant
Calendar scheduler
Like Cal.build, Kali is in the Calendar Assistant category. Both are freemium. Worth comparing on the detail page.
Calendar Assistant
AI calendar assistant that manages your schedule.
Like Cal.build, Toki AI is in the Calendar Assistant category. Both are freemium. Worth comparing on the detail page.
Calendar Assistant
Turn text, photos, voice into events & reminders in seconds
Like Cal.build, Smart Calendars AI — Plan fast & easy is in the Calendar Assistant category. Both are freemium. Worth comparing on the detail page.
Calendar Assistant
Optimized team schedule assistant.
Like Cal.build, Clockwise is in the Calendar Assistant category. Both are freemium. Worth comparing on the detail page.
Calendar Assistant
AI-powered scheduling assistant
Like Cal.build, Cal.AI is in the Calendar Assistant category. Both are freemium. Worth comparing on the detail page.
Calendar Assistant
Scan calendars to your phone with AI
Like Cal.build, CalendarScan is in the Calendar Assistant category. CalendarScan is free, while Cal.build is freemium. Worth comparing on the detail page.
Calendar Assistant
AI-powered meeting prep delivered to your inbox.
Like Cal.build, CalendarPrep is in the Calendar Assistant category. CalendarPrep is paid, while Cal.build is freemium. Worth comparing on the detail page.
Calendar Assistant
Turn anything into calendar events
Like Cal.build, Agenda Hero is in the Calendar Assistant category. Agenda Hero is free, while Cal.build is freemium. Worth comparing on the detail page.
Calendar Assistant
Generate Apple Calendar events effortlessly
Like Cal.build, Apple Calendar Generator is in the Calendar Assistant category. Apple Calendar Generator is free, while Cal.build is freemium. Worth comparing on the detail page.
Landing Pages
Generate personalized landing pages for every lead.
GenPage shares 2 topics with Cal.build: Personalization and Customization. Both are freemium.
Goals
Visualize tasks as flowcharts to boost productivity.
Taskheat AI Assistant shares 2 topics with Cal.build: Free + From $9.99/mo and Time Management. Both are freemium.
Image & Video Generation
Create AI videos and images from your imagination
Imagineapp shares 2 topics with Cal.build: Personalization and Customization. Both are freemium.
Online Dating Chat Suggestions
Unleash your dating charm with AI-powered responses.
RizzChatAI shares 2 topics with Cal.build: Personalization and Free + From $9.99/mo. Both are freemium.
Project Management
Boost productivity with AI-powered project management
Project Planner shares 2 topics with Cal.build: Planning and Time Management. Both are freemium.
Astrology
AI-powered personal astrology insights
Aistro shares 2 topics with Cal.build: Personalization and Free + From $9.99/mo. Both are freemium.
Task Automation
Chat with expert AI assistants for quick task completion.
Chatty Butler shares 2 topics with Cal.build: Free + From $9.99/mo and Time Management. Both are freemium.
Medical Documentation
AI-powered dot phrases for faster, better EHR documentation.
BotPhrase shares 2 topics with Cal.build: Customization and Free + From $9.99/mo. Both are freemium.
Stickers
AI-powered sticker creation for creative minds.
AI Sticker Generator shares 2 topics with Cal.build: Personalization and Customization. Both are freemium.
Personal Assistant
Turn ideas into personalized AI copilots in minutes
Azna AI shares 2 topics with Cal.build: Personalization and Free + From $9.99/mo. Both are freemium.
Video Scripts
Create scripts for videos and movies with AI
AI Script Generator shares 2 topics with Cal.build: Personalization and Customization. Both are freemium.
Pep Talks
Your AI pocket motivator for any challenge.
Dialed: AI Pep Talks shares 2 topics with Cal.build: Personalization and Customization. Both are freemium.
Interview Preparation
AI-powered voice interviews to ace your next job.
Bossed shares 2 topics with Cal.build: Personalization and Free + From $9.99/mo. Both are freemium.
42 more free/freemium alternatives listed below. Browse all Cal.build alternatives ↓
48 free or freemium alternatives to Cal.build on /tools/cal-build/alternatives.
Eightify shares 1 topic with Cal.build: Free + From $9.99/mo. Both are freemium.
AI Dungeon shares 1 topic with Cal.build: Free + From $9.99/mo. Both are freemium.
