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KerrOS Calendar

kerros.com

From $20/mo Free trial WebWindowsmacOSLinuxSelf-hosted
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Spec score 8.3 #8 of 27 in AI Calendar Assistants

What it is

KerrOS Calendar schedules meetings, recurring tasks, automations, and AI workers, and can trigger events across KerrOS products. Its AI scheduling uses priorities and availability to find meeting times and protect deep-work blocks. The calendar identifies overlapping working hours and adjusts schedules across time zones. Recurring events can be configured once, with recurrence, rescheduling, and reminders handled afterward. Events connect to Automator workflows that can start workers, send notifications, process data, or launch other automation chains. Native links include KerrOS AI Chat, Hub, Tasks, and CRM, with two-way syncing for task deadlines and milestones. KerrOS also lists integrations such as Slack, Google Drive, GitHub, Outlook, Notion, Jira, Salesforce, and others. It runs on Linux, macOS, Windows, web, or self-hosted hardware, with hybrid cloud and dedicated cluster options. Pricing is freemium: a free plan, a 14-day trial, and Pro at $20 a month billed monthly.

Spec sheet

Platforms
KerrOS describes itself as a web operating system layered on Mac, Windows, Linux, and cloud.Read 9 Oct 2026 · kerros.com
Deployment
KerrOS describes local deployment on a user's own hardware as well as hybrid cloud and dedicated cluster deployment options.Read 9 Oct 2026 · kerros.com
Trial
The KerrOS homepage advertises a 14-day free trial with no credit card required.Read 9 Oct 2026 · kerros.com
Headquarters
Stockholm, SwedenRead 28 Sep 2026 · kerros.com
Calendar purpose
KerrOS Calendar schedules meetings and can trigger automations, AI workers, and events across KerrOS products.Read 9 Oct 2026 · kerros.com
Company location
The site identifies the maker as KerrOS Sweden AB, located in Stockholm, Sweden.Read 9 Oct 2026 · kerros.com
GDPR
KerrOS says it applies GDPR-level protections to users regardless of location and identifies itself as a Swedish company.Read 9 Oct 2026 · kerros.com
KerrOS integrations
The Calendar page lists native integrations with AI Chat, Hub, Tasks, and CRM, including bidirectional syncing of task deadlines and milestones.Read 9 Oct 2026 · kerros.com
Privacy and security
KerrOS's privacy policy states that stored data is encrypted with AES-256, connections use TLS 1.2 or higher, and it does not sell user data or use it to train AI models.Read 9 Oct 2026 · kerros.com
Recurring events
Recurring events can be set once, with recurrence, rescheduling, and reminders handled by Calendar.Read 9 Oct 2026 · kerros.com
Scheduled automation
It supports scheduling AI workers, automations, and recurring tasks on daily, hourly, or custom intervals.Read 9 Oct 2026 · kerros.com
Smart scheduling
Its AI scheduling feature finds meeting times based on priorities and availability and protects deep work blocks automatically.Read 9 Oct 2026 · kerros.com
Third-party integrations
KerrOS's homepage lists Slack, Google Drive, GitHub, Stripe, Zapier, Outlook, Notion, Airtable, HubSpot, Jira, Salesforce, Twilio, Linear, and Figma among its integrations.Read 9 Oct 2026 · kerros.com
Time zones
The page says Calendar identifies overlapping working hours and adjusts schedules across time zones.Read 9 Oct 2026 · kerros.com
Workflow integration
Calendar events can connect to Automator workflows that trigger workers, notifications, data processing, or other automation chains.Read 9 Oct 2026 · kerros.com

Plans and prices

Pro $20 a month monthly Hybrid cloud deployment · Enterprise connectors · Regular support · API access included · No SSO/SAML, SOC2 compliance, or custom SLA Read 9 Oct 2026 · kerros.com
Core Price not published lifetime Local deployment · Basic connectors · Regular support · API access, SSO/SAML, SOC2 compliance, and custom SLA not included Read 9 Oct 2026 · kerros.com
Enterprise Priced on request Custom Dedicated cluster · Custom connectors · White-glove support · API access, SSO/SAML, SOC2 compliance, and custom SLA Read 9 Oct 2026 · kerros.com

Every KerrOS Calendar plan and price →

Strong points and limits

Strong points

  • AI scheduling considers priorities and availability
  • Handles recurring events and reminders
  • Connects calendar events to automation workflows
  • Supports Linux, macOS, Windows, web, and self-hosting
  • Free plan and 14-day trial available

Limits

  • Pro lacks SSO/SAML and SOC2 compliance
  • Core plan omits API access
  • Paid plan starts at $20 a month
  • Enterprise pricing is custom

Who it suits

It suits people coordinating meetings, recurring work, and automated processes across time zones. Teams can choose local, hybrid, or dedicated deployment.

Verdict

KerrOS Calendar combines meeting planning with recurring automation and workflow triggers. Its deployment choices and free tier broaden access, while some enterprise controls depend on plan.

Where Specifiction places it

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