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SPECIFICTION
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Efficio vs KerrOS Calendar

Efficio

efficio.pro

KerrOS Calendar

kerros.com

Side by side

FigureEfficioKerrOS Calendar
Price from$8/mo$20/mo
Free planYes—
Free trial—Yes
Open source——
WebYesYes
Windows—Yes
macOS—Yes
Linux—Yes
Self-hosted—Yes
Plans published33
Spec score · AI Calendar Assistants7.8 (#13)8.3 (#8)

Plans

Efficio

  • beta-testerFree
  • basic (monthly)$10 a month
  • basic (yearly)$96 a year

Efficio pricing →

KerrOS Calendar

  • Pro$20 a month
  • CorePrice not published
  • EnterprisePriced on request

KerrOS Calendar pricing →

In their own words

Efficio

Efficio is a web-based digital planner and calendar combining tasks, time-blocking, and an AI scheduling assistant. Tasks can contain duration, priority, deadlines, descriptions, tags, and attached files. Users create categories with names, descriptions, colors, and scheduling parameters, then drag tasks on the calendar to change timing or duration. Calendar controls include time zones and date and time formats. The AI assistant can assign tasks to categories, organize uncategorized tasks, and fill schedule gaps with suitable work. Efficio says it syncs with Google Calendar and Microsoft Calendar, and supports sign-up with either account. The product is in beta; the site warns that features may change significantly and data may be lost, recommending backups. The free beta-tester plan offers early access and feedback features. Basic plans are listed at 10.00 USD monthly or 96.00 USD yearly, both currently unavailable.

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KerrOS Calendar

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.

Visit kerros.com