Signal-based personalization
Every email is written from a real signal about your prospect. Not templates. Not noise. Just relevance.
B2B outboundCold email.
Cold email.
Warm replies.
Flinter personalizes cold email from real signals about your prospect. No templates. No spray-and-pray.
- 3×
- Higher reply rate
- 10 min
- To start a campaign
- 0
- Templates required
app.flinter.ai/campaigns
Campaigns
4 active · 1,820 sent this week
| Campaign | Status | Sent | Opens | Reply |
|---|---|---|---|---|
| Q3 Founder push | Active | 612 | 74% | 15% |
| SaaS CTO – Series B | Active | 284 | 69% | 22% |
| RevOps reactivation | Draft | 0 | — | — |
| EU Expansion | Paused | 1208 | 61% | 18% |
Signal detected: Acme just raised $40M
2m agoTrusted by growth teams at fast-moving B2B SaaS companies
01 — How it works
Four steps to a pipeline full of qualified conversations.
- Step 01
Import leads
Drop in a CSV or sync your CRM. Flinter handles the rest.
- Step 02
AI agent finds signals
Funding, hires, launches, tech changes — researched in real time.
- Step 03
Personalized emails sent
Each email is written by an AI that sounds human, not robotic.
- Step 04
Track replies in Unibox
Manage every conversation across senders in one clean inbox.
02 — Capabilities
Everything you need for outbound that actually converts.
Multi-step sequences
Contextual, relevant follow-ups that adapt to prospect behavior.
Multi-sender rotation
Send across mailboxes to maximize deliverability and reply rate.
Microsoft 365 & Gmail
Connect your Microsoft 365, Outlook, or Gmail mailboxes in seconds.
Unified inbox
All replies across all campaigns, in one place — with conversation threads.
Coming Soon
Email warmup
Automatically warm domains and IPs to land in the primary inbox.
03 — Why Flinter
Built for teams who take outbound seriously.
01 / 03
Real signals, not templates
Most tools swap first names into templates. Flinter reads what's actually happening at your prospects' companies — funding rounds, hires, launches — and writes from there.
02 / 03
AI writes, you close
Flinter's AI agent researches and writes every email end-to-end. Your SDRs focus on conversations and relationships, not copy.
03 / 03
Fraction of the cost
Get enterprise-grade enrichment, sophisticated sequencing, and sender rotation — in one tool, at a fraction of the typical price.
04 — Pricing
Simple, transparent. Start free.
Free
$0/mo
500 emails a month, one mailbox.
Lite
Popular$30/mo
20,000 emails, unlimited mailboxes, enrichment.
Pro
$78/mo
200,000 emails and 50,000 credits a month.
Every plan starts with a 14-day free trial — no card needed. Pay yearly and get two months free.
Replace your outbound stack.
What you'd pay for enrichment, sequencing, inbox warmup, and an SDR tool — in a single, modern product.
~$2.4k
Typical stack / mo
1 tool
With Flinter
05 — Testimonials
Growth teams are replacing their stack with Flinter.
We tried Clay, Instantly, and a bunch of other tools. Nothing came close to the reply rates we're getting with Flinter. The signal-based personalization actually works — prospects reply because the email feels like it was written just for them.
Vivetha
Growth Marketing at Calibr
Our SDRs were spending 2-3 hours a day just researching and writing cold emails. Flinter cut that to zero. Now they focus on conversations, not copy. Our pipeline has never looked healthier.
Sarah
Head of Sales at Atom
I was skeptical about AI-written emails — most tools produce generic slop. Flinter is different. It finds a real signal about the prospect and builds the entire email around it. Our open rates jumped 20% in the first campaign.
Greg
Head of Marketing at Amplify
Get started
Ready to fill your pipeline?
Join the teams using Flinter to turn cold outreach into warm conversations.