Cron built a strong following as a fast, keyboard-forward calendar client with a modern feel, especially for people who live in Google Calendar and want scheduling to be frictionless. But the alternatives landscape quickly splits into distinct camps: “universal” calendar aggregators like Vimcal and Morgen that unify Google and Microsoft/Exchange (and often add time-zone-first workflows), all-in-one productivity daily drivers like Fantastical that blend calendars with to-dos and polished native apps, dependable defaults like Google Calendar that win on reliability and ubiquity, and purpose-built booking engines like Calendly that optimize external scheduling at scale.
In evaluating these options, the main considerations were calendar-provider support (Google vs Microsoft/Apple), scheduling workflows (availability sharing, proposals, booking links), time-zone handling, task/time-blocking depth, cross-platform coverage and sync/notification reliability, ease of onboarding and daily speed (including keyboard shortcuts), and overall value relative to pricing and feature gating.