Kalender Sync vs Visiby: Features, Pricing & Which Is Better (2026)

A side-by-side comparison of Kalender Sync and Visiby — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.

Kalender Sync

PPJ Venture Labs UG

Freemium

GDPR-compliant calendar sync that links Outlook, Google, iCloud and more, and lets Claude, ChatGPT or other agents manage your calendars via MCP.

Multi-Provider Calendar Sync: Connects Outlook, Google, Apple iCloud, GMX, WEB.DE, mailbox.org, kSuite, Posteo and STRATO calendars in real time, one-way or two-way.
Visibility Levels: Choose per sync whether the target sees busy only, title and time, or full event details.
AI Assistant Access via MCP: Remote MCP server lets Claude, ChatGPT, Codex, Cursor, Grok and OpenClaw read and manage your calendars.
Agent-Driven Setup: Ask your connected AI agent to create syncs, find free time across calendars and schedule events.
Per-Calendar Permissions: Grant AI access calendar by calendar, with optional write access and an access log.
Calendar Sharing: Share a calendar with another person without exposing the underlying account.
Credit-Based AI Usage: Monthly AI credits cover event searches, availability checks and event edits, with optional top-ups.
GDPR Compliance: Hosted in Germany with data-protection-focused design.

A freelancer mirrors client calendars into one personal calendar while hiding event details behind busy blocks.
A manager with several roles keeps Outlook, Google and iCloud calendars synchronized to avoid double bookings.
A tax advisor lets Claude find free slots across work and private calendars and book appointments.
A coach shares availability with clients without giving access to the full calendar.
A developer connects Claude Code or Cursor to their calendar through MCP to plan the week.
An interim manager with multiple companies consolidates every company calendar into a single view.

FNA Technology

Paid

AI visibility platform that tracks how ChatGPT, Perplexity, Claude, Gemini and AI Overviews cite your brand, and ships fixes.

AI Citation Tracking: Continuously samples roughly 50,000 prompts per week across ChatGPT, Claude, Perplexity, Gemini and Google AI Overviews to record where and how a brand is cited.
Per-Engine Visibility Scoring: Reports a composite AI Visibility score plus share of voice and prompts won or lost, broken out engine by engine so declines can be traced to a specific model.
Prompts & Citations Explorer: Lets teams open any tracked prompt and read the actual model answer to see which competitor was named and why.
Brand Entity Analysis: Maps the adjectives each engine associates with your brand versus competitors and suggests reframing plays to change that portrait.
Competitor Intelligence: Tracks rival citation share on comparison and 'alternatives to' prompts, highlighting categories where a competitor dominates.
Prioritized Action Plan: Converts findings into P0/P1 recommendations such as schema additions or comparison pages, each with a time estimate and projected score gain.
Site Audit for AI Parseability: Audits pages for missing entity definitions, structured Q&A data and other signals that prevent models from citing the site correctly.
White-Label Reporting and API: Higher tiers add white-label client reports, SSO/SAML and API access for agencies managing multiple brands.

AI Search Monitoring: Marketing teams track whether ChatGPT and Perplexity recommend their product or a competitor on high-intent category prompts.
Competitive Benchmarking: Brands quantify how much citation share a named rival is capturing on 'alternatives to' and 'best of' queries.
Content Prioritization: Content teams decide which pages to write or refresh based on which prompts are currently missed rather than on keyword volume alone.
Technical AEO Audits: SEO specialists find pages lacking FAQ schema or entity markers that keep answer engines from parsing them.
Agency Client Reporting: Agencies run pooled prompt tracking across multiple client workspaces and deliver white-label AI visibility reports.
Executive Reporting: Operators present a weekly digest showing search clicks alongside AI citation share to explain traffic shifts leadership sees.