stack.ai·AI-native cold outreach

AI does the
outreach.
You do the talking.

Outbound researches every prospect deeply, drafts personalized emails using your company's positioning, and sends through your own mailbox. Bring your list — we don't lock you to ours. Free with 50 drafts. $29/mo for 1,000.

No contact database lock-inSend from your own Gmail30-second live demoNo credit card
outbound.ustack.ai/demo
layer 05Send from your mailboxgmail / m365 / smtp
layer 04AI draft, your tonepersonalized
layer 03Layered contextseller + product + list
layer 02Deep prospect researchreal signals, real sources
layer 01Bring your own listcsv · crm · linkedin
layer 00Your use casesales · recruiting · bd
research deepdrafts AI-nativesend your mailbox

Research that goes deep.

Apollo gives you a contact database a mile wide and an inch deep. We do the opposite — every prospect gets real research from the web, news, and signals, with sources you can click. Your drafts reference things that actually matter to them.

AI-native, not bolt-on.

Every feature is shaped around AI from the ground up. The layered context model (seller profile + product + list intent + per-prospect research) means drafts read like a sharp salesperson wrote them, not a template generator.

Bring your own everything.

Your list. Your mailbox. Your domain reputation. Your data. We don't sell contact data, we don't hold you hostage with vendor lock-in, and we don't use your data to train models. Export anytime.

How it works

Three steps from upload to sent.

// 01

Bring your list.

Upload a CSV, paste from your CRM, or drop in a LinkedIn export. We dedupe, validate, and import in seconds. Add one line about what kind of list it is — conference, warm lead, cold target — and we tune the framing.

// 02

AI researches + drafts.

For every prospect, Outbound does real research: web search, news, signals. Combined with your seller profile and the product you're pitching, we generate personalized drafts. The opener references something specific to them.

// 03

Send from your mailbox.

Approve drafts in your inbox-style queue. Send through Gmail, Workspace, M365, or SMTP — your own domain, your own sender reputation. Replies stream back into the Mail view, classified and ready for follow-up.

Pricing

Simple, honest pricing.

Free tier with 50 drafts/month, forever. Pay for what you use after that. Cancel anytime. Annual saves up to 25%.

Free

$0

50 drafts/mo

1 seat

Start free
Most popular

Solo

$29/mo

1,000 drafts/mo

1 seat

Choose Solo

Team

$99/mo

4,000 drafts/mo

5 seats

Choose Team

Scale

$299/mo

15,000 drafts/mo

15 seats

Choose Scale
Enterprise (custom drafts, SSO, DPA): contact us·See full pricing + feature comparison →
How we compare

Different from what's out there.

OutboundApolloOutreachSmartlead
Entry price$0 (free), $29/mo$49/mo$130/mo$39/mo
Per-prospect researchDeep (live + AI extracted)Wide database, shallowLimitedNone
Send from your mailbox✓ NativeAdd-on
AI-native drafts✓ Core featureAdd-onAdd-onTemplates only
Bring your own list✓ RequiredOptional
Free tier50 drafts/mo foreverTrial onlyNoTrial only

Comparison reflects public pricing + features as of May 2026. We tracked it so you don't have to.

FAQ

Common questions.

Do I need to bring my own contact list?
Yes. We don't sell or rent contact data — you upload your prospects. CSV, paste from CRM, or LinkedIn Sales Navigator export.
Will recipients know an AI wrote it?
No. Drafts are personalized using deep research on each prospect, so they read like a human wrote them. You also approve every draft before it sends — tweak whatever you want.
I'm not technical. Can I use it?
Yes. Setup is 5 minutes, no developer needed. We walk you through connecting your Gmail/Outlook and uploading your first list.
Can I send through Outlook / Microsoft 365?
Yes, on Team plan and above. Free and Solo plans support Gmail. All plans support copy-to-clipboard — paste into any mail client.
What's the difference between Free and Solo?
Free is 50 drafts/month forever, copy-and-paste only. Solo is $29/month for 1,000 drafts and direct Gmail send. Most users start free, validate, then upgrade.
Can I cancel anytime?
Yes. Cancel from your billing dashboard or by emailing us. No prorated refunds on monthly; prorated refunds on annual.
// Get started

Try it. No credit card.

See the live demo on a real company in 30 seconds. Or sign up free and run a real campaign — 50 drafts on us, forever.