Cal.com significantly outpaces Easy!Appointments in community adoption with 46,750 stars compared to 4,274 stars on GitHub. This 10.9x difference suggests Cal.com has a much larger and more active community. In terms of developer contributions, Cal.com has 14,539 forks, indicating strong developer engagement.

Both projects show recent activity, with Cal.com last updated 3 days ago and Easy!Appointments 21 hours ago.

Both tools share common technology foundations, being built with JavaScript, PHP. However, they differ in their additional technology choices: Cal.com uses CSS, Bash, Typescript, JSX, Next.js, NestJS while Easy!Appointments leverages SCSS.

Easy!Appointments has been in development longer, starting 12 years ago, compared to Cal.com which began 5 years ago. This 6.4-year head start suggests Easy!Appointments may have more mature features and established processes.

Cal.com uses the MIT license, which is more permissive than Easy!Appointments's GPL-3.0 license, potentially offering greater flexibility for commercial use and integration.

Both tools serve similar use cases in Appointment Scheduling.

Both Cal.com and Easy!Appointments offer self-hosting capabilities, giving you full control over your data and infrastructure.