Listmonk significantly outpaces Sendportal in community adoption with 22,454 stars compared to 2,153 stars on GitHub. This 10.4x difference suggests Listmonk has a much larger and more active community. In terms of developer contributions, Listmonk has 2,444 forks, indicating strong developer engagement.

Listmonk shows more recent development activity with its last commit 3 days ago, while Sendportal was last updated 2 years ago. This suggests Listmonk is being more actively maintained.

Listmonk uses JavaScript, CSS, Bash, Typescript, JSX, Python, SCSS, Golang, Vue while Sendportal leverages PHP, Laravel.

Both projects started around the same time, with Listmonk beginning 7 years ago and Sendportal 6 years ago.

Sendportal uses the MIT license, which is more permissive than Listmonk'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: Listmonk also focuses on Marketing Automation while Sendportal extends into Email Platforms.

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