head to head · open source
Ntfy vs Sessy
Ntfy has 34,282 GitHub stars, 1,605 forks, 393 open issues and last shipped 3 days ago. Sessy has 929 stars, 44 forks, 7 open issues and last shipped 3 days ago. Ntfy leads on adoption by 3,590% (34,282 vs 929 stars). Ntfy is written in Go under Apache-2.0; Sessy is written in Ruby under a custom or non-standard licence. Ntfy has attracted 5% as many forks as stars, Sessy 5%. Sessy was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Ntfy | Sessy | |
|---|---|---|
| GitHub stars | ★ 34K | ★ 929 |
| License | Apache-2.0 | Custom / other |
| Written in | Go | Ruby |
| Last push | 2026-09-15 | 2026-09-15 |
| Forks | ⑂ 1.6K | ⑂ 44 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Ntfy if
- You weight community size — 34K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick Sessy if
- You want the Sessy feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches Ruby
- You evaluated both and Sessy fits your workflow better
About Ntfy
ntfy is an HTTP based publish subscribe notification service that delivers push notifications to phones and desktops via simple REST API calls. It operates in the open source notification ecosystem, providing a lightweight alternative to proprietary push notification infrastructure. Users publish messages to topics via standard HTTP methods, and subscribers receive them instantly on registered devices.
About Sessy
Sessy is an open source email observability tool for Amazon SES, built in Ruby on Rails by Marc Köhlbrugge and distributed under the O'Saasy License. It lives in the AWS ecosystem: you keep sending through raw SES, and Sessy supplies the interface that shows what happened to each message after it left your application. The repository carries the topics amazon ses, email, rails, and ruby, and the project's own homepage is sessy.do.
read the full Sessy overview →
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Frequently asked questions
Is Ntfy or Sessy more popular?
Ntfy has 34,282 GitHub stars and Sessy has 929. Ntfy has the larger community by that measure.
Are Ntfy and Sessy free?
Both are open source. Ntfy is licensed under Apache-2.0, and Sessy has no licence declared in this registry. Both are free to self-host.
What is the difference between Ntfy and Sessy?
Ntfy is written in Go and Sessy in Ruby. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Ntfy or Sessy?
Choose Ntfy if you want the larger community (34,282 stars) or its Apache-2.0 licence terms. Choose Sessy if its feature set, stack or Custom / other licence fits better. Both are self-hostable.