| Overview |
A realtime messaging infrastructure platform providing pub/sub, presence, and stream processing for applications at scale. |
A free open-source invoicing and payment platform for freelancers and small businesses with time tracking and proposals. |
| Pricing |
Freemium (Free-$99/month) |
Freemium (Free-$14/month) |
| Key Features |
- Pub/sub messaging
- Presence
- Stream processing
- Webhooks
- MQTT support
- Message queuing
- History
- Global edge network
|
- Invoicing
- Proposals
- Payments
- Time tracking
- Expense tracking
- Recurring invoices
- Client portal
- Reports
|
| Pros |
- Enterprise-grade reliability
- Global edge network
- Protocol support
- Good documentation
|
- Open source
- Free plan generous
- Self-hosted option
- Modern interface
|
| Cons |
- Can be expensive
- Complex pricing
- Smaller community
- Learning curve
|
- Limited on free plan
- Smaller community
- Fewer integrations
- Support limited on free
|
