Billion Mail significantly outpaces Sendportal in community adoption with 15,362 stars compared to 2,153 stars on GitHub. This 7.1x difference suggests Billion Mail has a much larger and more active community. In terms of developer contributions, Billion Mail has 1,664 forks, indicating strong developer engagement.

Billion Mail shows more recent development activity with its last commit 2 months ago, while Sendportal was last updated 2 years ago. This suggests Billion Mail is being more actively maintained.

Both tools share common technology foundations, being built with PHP. However, they differ in their additional technology choices: Billion Mail uses JavaScript, CSS, Bash, Typescript, JSX, SCSS, Golang, Vue while Sendportal leverages Laravel.

Sendportal has been in development longer, starting 6 years ago, compared to Billion Mail which began 1 year ago. This 4.8-year head start suggests Sendportal may have more mature features and established processes.

Sendportal uses the MIT license, which is more permissive than Billion Mail's AGPL-3.0 license, potentially offering greater flexibility for commercial use and integration.

Both tools serve similar use cases in Email Marketing & Newsletters. However, they also have distinct specializations: Sendportal extends into Email Platforms.

Both Billion Mail and Sendportal offer self-hosting capabilities, giving you full control over your data and infrastructure.