| Overview |
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. |
An open-source Firebase alternative with PostgreSQL database, authentication, real-time subscriptions, and edge functions. |
| Pricing |
Freemium ($0-99/mo) |
Freemium (Free-$25/month) |
| Key Features |
- Contact database
- email sequencing
- dialer
- LinkedIn integration
- buying intent signals
- data enrichment
- CRM sync
- lead scoring
|
- PostgreSQL database
- Authentication
- Real-time
- Edge functions
- Storage
- Vector embeddings
- Auto-generated APIs
- Dashboard
|
| Pros |
- Massive contact database
- Generous free tier
- All-in-one platform
- Good data accuracy
|
- Open source
- PostgreSQL-based
- Generous free tier
- Great developer experience
|
| Cons |
- Data can be outdated for smaller companies
- UI can feel cluttered
- Email deliverability issues at scale
|
- Scaling can get expensive
- Newer platform
- Some features in beta
- Self-hosting requires expertise
|
