Compare Baïkal and vimcal on pricing, features, platforms, and ratings — both Calendar tools, Free (open source) vs Free iOS-only tier; Standard plan $20/mo…
At a Glance
Baïkal
vimcal
Primary category
Calendar
Calendar
Rating
Not documented
Not documented
Pricing model
Free (open source)
Free iOS-only tier; Standard plan $20/mo ($16.67/mo billed annually); Vimcal EA $75/mo ($62.50/mo billed annually); Enterprise and EA Enterprise custom/contact-sales pricing; free trial, no credit card required.
Starting price
Free
$20
/ mo
Free plan
Not documented
Yes
Free trial
Not documented
Yes
Platforms
Web
Web, iOS, Desktop App, Mobile App
Team collaboration
Not documented
Not documented
AI features
Not documented
Not documented
Public API
Yes
Not documented
Pricing Compared
Starting price reflects the lowest paid tier, not the full cost for every team size or usage level.
Baïkal
No individual plan breakdown documented yet.
vimcal
No individual plan breakdown documented yet.
Pros & Cons
Baïkal
Pros
Free and open source under the GPL v3 license
Lightweight with minimal server requirements
Broad compatibility with major calendar and contacts clients
Simple installation via web installer or Docker
Cons
Minimal feature set compared to full groupware suites
Development pace has slowed with less frequent releases
Requires self-hosting and manual server maintenance
vimcal
Pros
Speed- and keyboard-shortcut-focused design aimed at cutting time spent on scheduling
Unifies multiple Google and Outlook calendars (work and personal) into a single view
Purpose-built EA tier with calendar audits, account handoff, and multi-time-zone tools for people scheduling on someone else's behalf
Free trial with no credit card required
Genuine free tier (iOS-only) in addition to paid plans, so users can try core functionality at no cost
Cons
The free tier is limited to iOS only — desktop and full multi-account features require a paid plan
Enterprise and EA Enterprise tiers use custom/contact-sales pricing with no published rate
The jump from the $20/mo Standard plan to the $75/mo EA Scheduling tier is steep for users who only need a subset of EA features
Publicly documented integrations are limited to Google Calendar and Microsoft Outlook, with no confirmed native integrations for tools like Zoom or Slack on the marketing site
Use Cases
Baïkal
Privacy-focused calendar sync — Individuals who want to self-host calendar and contact sync instead of using a third-party cloud provider.
Homelab self-hosting — Self-hosting enthusiasts running personal infrastructure who want a lightweight CalDAV/CardDAV server.
Small team calendar sharing — Small teams or families wanting shared calendars and contacts without a commercial service.