Apollo is genuinely two products in a trench coat: a contact database and a cold email platform. The database is good - top-tier even. The sender is where things fall apart: average deliverability tooling, weak personalization, no real LinkedIn integration, and a UX that hasn't kept up with what modern outbound looks like.
That's why a growing number of teams use Apollo for the data export and Mailgent for the sending. Better reply rates, multichannel out of the box, and AI that does more than swap variable names.
Quick comparison
| Feature | Mailgent | Apollo.io |
|---|---|---|
| Contact database | ✅ Built-in enrichment | ✅ Industry-leading |
| Email sending | ✅ Purpose-built sender + warmup | ⚠️ Functional but basic |
| LinkedIn outreach | ✅ Native, in-sequence | ⚠️ Limited Chrome extension |
| AI personalization | ✅ Per-prospect, LinkedIn-aware | ⚠️ Template-based |
| Unified inbox | ✅ Email + LinkedIn | ✅ Email only |
| Pricing for senders | Pay for what you send | Per-seat, sales-platform pricing |
Where Apollo wins
The database. Apollo's coverage on B2B contacts (especially mid-market US) is excellent, and the filters for building lists are mature. If you need raw data and intent signals at scale, Apollo earns its spot in the stack.
Where Apollo falls short for outbound
Sending feels like an afterthought. Compared to dedicated senders (Mailgent, Instantly, Smartlead), Apollo's deliverability tooling is thinner. Inbox rotation is basic, warmup feels bolted on, and you'll see it in your reply rates over time.
"Personalization" is mostly variables. Apollo's AI features feel like a checkbox. Mailgent's AI generates openers from real prospect context - recent posts, role changes, company news - instead of substituting first names into a template.
LinkedIn is barely there. Apollo's LinkedIn integration is a Chrome extension for finding contacts, not a real outreach channel. Mailgent runs LinkedIn DMs as a native sequence step, in the same flow as email.
The "Apollo + Mailgent" stack
If you love Apollo's data, keep it. Export your lists to Mailgent and run the actual outreach there. You get Apollo's coverage + Mailgent's reply rates. It's the most common setup we see from teams who've outgrown Apollo's sequencing.
When you can drop Apollo entirely
- You're targeting a defined ICP where Mailgent's enrichment covers your contacts
- You want one bill instead of two
- You don't need Apollo's broader sales-platform features (CRM, dialer, etc.)
Pricing reality
Apollo's price climbs fast once you add credits and seats. Mailgent's per-active-contact model means a 5-person SDR team pays the same as a solo founder for the same volume. For pure outbound, the math almost always favors Mailgent.
Bottom line
Apollo is the best place to find prospects. Mailgent is the best place to actually reach them. If your reply rates have plateaued on Apollo's sender, the upgrade is one campaign away.