Cal.com significantly outpaces Easy!Appointments in community adoption with 47,583 stars compared to 4,320 stars on GitHub. This 11.0x difference suggests Cal.com has a much larger and more active community. In terms of developer contributions, Cal.com has 14,769 forks, indicating strong developer engagement.

Cal.com is growing faster, adding 1,142 stars in the last 30 days (+2.5%) against adding 60 stars for Easy!Appointments (+1.4%). Cal.com is both larger and pulling further ahead.

Both projects show recent activity, with Cal.com last updated 6 days ago and Easy!Appointments 2 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.