The outreach enginebuilt for Amazon.
Nautilus connects to your campaigns, learns what's converting, and auto-generates cold emails that get better with every send.
Live campaign datato self-improving outreach.In three steps.
Connect campaigns, learn from real replies, and generate cold email + follow-ups that improve automatically.
Connect & Analyze
Nautilus pulls your live campaign data — open rates, reply rates, subject lines, email bodies — and surfaces what's actually driving replies.
Learn & Build Style Guides
A background process reads real reply data, compares it to generated emails, and writes AI style guides per service. These rules auto-apply to the next round of generation.
Generate at Scale
Select a service and Nautilus auto-fills your offer, audience, and context, then generates a cold email, A/B variants, and full follow-up sequences.
Analytics, generation,and live tracking.
Campaign Analytics
Pull live data from your campaign or upload a CSV. See reply rates, open rates, and which subject lines are winning.
AI Email Generation
Choose a service, and the AI writes your cold email, variants, and follow-up sequence. All saved and organized in one place.
Self-Learning
A background cron job reads your live campaign results and updates the AI's writing rules automatically. No manual tuning needed.
Service Management
Manage everything you sell — offer, audience, and campaign filter — in one place. View all generated emails nested by base → variants → sequences.
Campaign Tracker
A live dashboard showing every Instantly campaign: sent, open rate, reply rate, bounce rate, and unsubscribes. Drill into individual email steps and A/B performance.
Intelligence thatgets sharper with every campaign.
Nautilus doesn't guess at what works — it reads your real campaign reply data, compares it against generated emails, and rewrites its own rules. The next campaign is always smarter than the last.
Subject Lines
Which patterns, lengths, and angles drive opens across your campaigns
Email Bodies
What copy structures and messaging frames are generating replies
Reply Rate by Service
Which service offerings resonate most with your target audience
A/B Variant Performance
Which variant wins per campaign step, fed back into future generation
Numbers thatspeak for themselves.
★★★★★
"Nautilus cut our outreach writing time in half and our conversion rate jumped 41% in the first month. It actually understands the Amazon seller mindset."
JMJames Moreno
Head of Growth · Meridian Co.
★★★★★
"We went from 14% to 59% open rates within 6 weeks. The AI doesn't just rewrite emails — it learns our brand voice and gets better every campaign."
SRSarah Reid
Director, Client Success · NovaSell
★★★★★
"We manage 60+ Amazon brands. Nautilus scaled our outreach without adding headcount. It's the backbone of how we run retention now."
DKDavid Kline
Founder · Elevate AMZ
Built for agencies that live inside Instantly.
Nautilus closes the loop between your campaign data and your next send.