Postal vs Postiz-app
Postal and Postiz-app are both marketing automation software. Postal is open source under MIT, with 17k GitHub stars. Postiz-app is open source under AGPL-3.0, with 41k GitHub stars.
Which to pick
- Pick Postal when
- You send large volumes of transactional email and want your own Sendgrid-style platform on your own IPs.
- Pick Postiz-app when
- You manage several social accounts and want a Buffer alternative you can self-host or buy hosted.
Side by side
A self-hosted mail delivery platform for sending and receiving email from apps over SMTP and HTTP API, with click and open tracking and webhooks.
A social media scheduler for planning, publishing and analysing posts across many networks, with team collaboration and AI assistance.
Deliverability, IP reputation and abuse handling become your job.
Each network needs its own developer app and API approval when self-hosting, and the app is AGPL licensed.
Production-ready
Usable
Self-hosted server
Self-hosted server and cloud service
Ruby, Rails and MariaDB
TypeScript, NestJS, Next.js, Prisma and Redis
Open source, MIT (permissive)
Open source, AGPL-3.0 (network copyleft)
You can build it into a product you sell, as long as you keep its copyright notice.
Use inside your business is unrestricted. If you change it and let customers use it over the internet, you must publish your changes.
17k GitHub stars
41k GitHub stars
Established: started 9 years ago, latest release 3.3.7.
Established: started 3 years ago, latest release v2.25.3.
Other comparisons
More marketing automation platforms
Both sides were judged on 2026-11-03 from each project's README and GitHub data. License, age and popularity lines are worked out directly.