Learn how DoubleZero and Hyvor Relay differ in their key features, development activity, technology stack and community adoption, so you can decide which of these email platforms is best for you.
Last 30 days
Last commit
Repository age
License
Self-hosted
Repository

Last 30 days
Last commit
Repository age
Version
License
Self-hosted
Repository

Both DoubleZero and Hyvor Relay have their unique strengths and serve similar purposes effectively. Consider your specific needs regarding popularity, growth, activity, technology, maturity, licensing and features when making your decision.
DoubleZero leads in popularity with 1,248 stars vs 829 stars for Hyvor Relay. The 51% higher star count indicates stronger community adoption. In terms of developer contributions, DoubleZero has 65 forks, indicating growing developer engagement.
Hyvor Relay is growing faster, adding 126 stars in the last 30 days (+18%) against adding 4 stars for DoubleZero (+0.3%). Hyvor Relay is the smaller project of the two, so it is closing the gap rather than extending a lead.
Hyvor Relay shows more recent development activity with its last commit 9 hours ago, while DoubleZero was last updated 2 years ago. This suggests Hyvor Relay is being more actively maintained.
Both tools share common technology foundations, being built with JavaScript, CSS, Bash, Typescript. However, they differ in their additional technology choices: DoubleZero uses Elixir while Hyvor Relay leverages Golang, PHP, SvelteKit.
DoubleZero has been in development longer, starting 2 years ago, compared to Hyvor Relay which began 1 year ago. This 1.1-year head start suggests DoubleZero may have more mature features and established processes.
Both projects use the AGPL-3.0 license, providing identical terms for usage and distribution.
Both tools serve similar use cases in Email Platforms.
Both DoubleZero and Hyvor Relay offer self-hosting capabilities, giving you full control over your data and infrastructure.