Compare Baïkal and Sunsama on pricing, features, platforms, and ratings — both Calendar tools, Free (open source) vs subscription pricing to decide which fits…
At a Glance
Baïkal
Sunsama
Primary category
Calendar
Calendar
Rating
Not documented
Not documented
Pricing model
Free (open source)
subscription
Starting price
Free
$17/month
Free plan
Not documented
Not documented
Free trial
Not documented
Yes
Platforms
Web
Web, iOS, Android, Mac, Windows
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.
Sunsama
Pro (annual) — $17/month Annual
Pro (monthly) — $22/month Monthly
Enterprise — Custom Custom
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
Sunsama
Pros
Unifies tasks and calendar from many existing tools instead of requiring a full switch
Structured daily and weekly rituals encourage more intentional, realistic planning
Single, simple pricing tier with no confusing feature gating
Focus on individual workflow avoids the clutter of team-oriented project management tools
Cons
No permanent free plan, only a 14-day trial
No team or collaboration tier, so it does not replace shared project management tools
Small company size may mean slower feature development compared to larger competitors
Requires connecting several external accounts to get full value, adding setup time
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.
Sunsama
Daily focus planning — Knowledge workers use Sunsama each morning to choose a realistic set of tasks and time-block their day.
Cross-tool task consolidation — Users juggling Trello, Asana, Slack, and email pull everything into one daily view instead of checking each app separately.
Weekly reflection and planning — Users run a structured weekly review to assess progress and set intentions for the upcoming week.