| Overview |
A realtime messaging infrastructure platform providing pub/sub, presence, and stream processing for applications at scale. |
Free and open-source self-hosted newsletter and mailing list manager with high performance and modern UI. |
| Pricing |
Freemium (Free-$99/month) |
Free (Free) |
| Key Features |
- Pub/sub messaging
- Presence
- Stream processing
- Webhooks
- MQTT support
- Message queuing
- History
- Global edge network
|
- Self-hosted
- Newsletter management
- Template engine
- Analytics
- Import/Export
- API
- Bounce handling
|
| Pros |
- Enterprise-grade reliability
- Global edge network
- Protocol support
- Good documentation
|
- Free and open-source
- High performance
- Modern UI
- Self-hosted
|
| Cons |
- Can be expensive
- Complex pricing
- Smaller community
- Learning curve
|
- Self-hosting required
- No SaaS
- Technical setup needed
|
