General Bots Calendar vs KerrOS Calendar

General Bots Calendar is a self-hosted team calendar for scheduling events, reminders and tasks. Users can request meetings, calls or reminders in natural language; invitations are sent automatically, and an availability endpoint can suggest open booking slots. The calendar has day, week, month and agenda views, mini-calendar navigation and keyboard shortcuts. It supports all-day and recurring events, personal reminders with lead time, and multiple calendars. Tasks with due dates appear alongside events, and completing a task updates its status on the calendar. REST endpoints cover event creation, reading, updating and deletion, plus free/busy checks. Calendar sync includes CalDAV servers. The calendar runs on customer-owned infrastructure and keeps data on the customer’s hardware; the full source is available under AGPLv3. Deployment is described as a self-contained Docker setup on a VM or bare metal. The Self-Hosted plan costs nothing, with unlimited users and operations and no per-user licensing fees.

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.