| Overview |
A realtime messaging infrastructure platform providing pub/sub, presence, and stream processing for applications at scale. |
Apollo.io is an all-in-one sales intelligence and engagement platform with a database of over 275 million contacts. It combines prospecting, enrichment, and outreach automation in a single workflow. |
| Pricing |
Freemium (Free-$99/month) |
Freemium ($0-99/mo) |
| Key Features |
- Pub/sub messaging
- Presence
- Stream processing
- Webhooks
- MQTT support
- Message queuing
- History
- Global edge network
|
- Contact database
- email sequencing
- dialer
- LinkedIn integration
- buying intent signals
- data enrichment
- CRM sync
- lead scoring
|
| Pros |
- Enterprise-grade reliability
- Global edge network
- Protocol support
- Good documentation
|
- Massive contact database
- Generous free tier
- All-in-one platform
- Good data accuracy
|
| Cons |
- Can be expensive
- Complex pricing
- Smaller community
- Learning curve
|
- Data can be outdated for smaller companies
- UI can feel cluttered
- Email deliverability issues at scale
|
