Your AI-powered
contact book.
Built from your email history — company, role, and key topics auto-filled for every contact.
Sign up with just your email. No Google OAuth, no password, no friction.
★★★★★ Join 500+ freelancers and founders who never forget a contact
No sign-in needed
AI enriching contact…
Step 1 of 4
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Watch it build your contact book
SignBook scans your Gmail, finds every contact, and ranks them by relationship strength — automatically.
Scanning your Gmail...
Identifying contacts & conversations
Maya Patel
Re: Q4 integration timeline
James Chen
Feedback on the prototype
Sofia Rodriguez
Contract renewal — quick chat?
Amir Hassan
Quick sync tomorrow?
Emma Larsson
DevRel collab opportunity
Tyler Nakamura
Catching up on the research
Analyzing 47 emails for contacts...
This is a live simulation · No data required · Loops every 8s
Build your real contact book →How it Works
Three steps to a smarter contact book
Sign up with just your email, import contacts via CSV, and let AI enrich every contact automatically — no manual work required.
Your AI-powered contact book
Import via CSV · AI enriches every contact automatically
Sign up in 10 seconds
Just enter your email — we'll send a magic link instantly. No password, no Google OAuth, no friction. One click and you're in.
Import your contacts
Upload a CSV from Google Contacts, LinkedIn, or any app. Manual entry works too. Google Contacts direct sync coming soon.
AI enriches every contact
Company, role, and key topics are auto-filled for each contact. Your fully searchable AI contact book is ready in minutes — zero manual work.
Features
Everything you need to manage your network
CSV Import
Import contacts from Google Contacts or LinkedIn CSV — enriched with AI summaries instantly.
AI Conversation Summaries
Get a concise summary of every conversation you've had with each contact.
Relationship Strength
See who you talk to most, who's gone quiet, and how your network evolves.
Search & Filter
Find anyone by name, topic, company, or keyword in seconds.
Follow-Up Reminders
Never let important relationships slip — get nudges to reconnect.
Export to CSV
Download your enriched contacts anytime for use in other tools.
Gmail sync
Coming soonWant real one-click Gmail integration? Enter your email and we'll notify you the moment sync is ready.
Who It's For
The AI contact book built for how professionals actually work
Whether you manage clients, close deals, or grow a company, SignBook's Gmail contact manager turns your inbox into a relationship intelligence tool.
Never forget a client's history again
As a Gmail contact manager for consultants, SignBook surfaces every past email thread, meeting note, and context from your AI contact book — so you walk into every client call prepared.
Know exactly who you've pitched before
Your email relationship tracker remembers every prospect you've emailed. The AI contact summaries show deal history, last touchpoint, and warmth score — so you never pitch the same person twice.
Keep track of every investor, partner, and advisor
Building a company means hundreds of relationships. SignBook builds your investor and advisor contact book from your Google Contacts or LinkedIn CSV export — no spreadsheet required.
Remember every candidate you've ever emailed
Turn your inbox into an AI contact book for talent. SignBook tracks every candidate conversation, highlights warm relationships, and helps you re-engage past leads before they go cold.
SignBook vs. a CRM
Why an AI contact book beats a traditional CRM for most people
CRMs are powerful — but they require constant manual work. SignBook is an automatic email relationship tracker that builds itself from your Gmail history.
| Feature | SSignBook | Traditional CRM |
|---|---|---|
| Setup time | < 2 minutes (CSV upload) | Days of manual data entry |
| Data source | Built from your real email history | You type everything in manually |
| Contact enrichment | Automatic AI contact summaries | Manual notes or paid add-ons |
| Gmail integration | Automatic contact sync from Gmail export | Requires paid integrations |
| Privacy | Your data stays yours, no email access | Often reads your email content |
| Price | Free up to 50 contacts | $50–$150/user/month |
| Best for | Individuals & small teams who live in email | Large sales teams with complex pipelines |
FAQ
Questions about your Gmail contact manager
Everything you need to know about SignBook, the AI contact book built from your email history.
Partners
Tools we recommend
SignBook works great alongside these trusted tools for sales professionals and relationship builders.
Actio AI
actio.nanocorp.appActio AI turns any meeting transcript into structured action items with owners in 5 seconds — no signup needed. After your call, capture every follow-up instantly, then open SignBook to see the full relationship context before your next touchpoint.
Visit Actio AI →Kinnect
kinnect.nanocorp.appKinnect is your AI-powered relationship memory for sales professionals — it remembers every interaction, surfaces smart nudges on who to reach out to today, and auto-generates pre-meeting briefings and post-meeting recaps. It's your personal chief of staff for managing every professional relationship.
Visit Kinnect →Qualifai
qualifai.nanocorp.appWaff is an AI sales assistant that finds and qualifies B2B and B2C prospects automatically. We help sales teams close more deals by eliminating hours of manual research. Try 10 qualified leads free.
Visit Qualifai →Pricing
Simple, transparent pricing
Start free. Upgrade when you're ready.
Free
Try SignBook with up to 50 contacts.
- 50 contacts
- Basic summaries
- Search & filter
- CSV export
Pro
Unlimited contacts and full AI features.
- Unlimited contacts
- Advanced AI summaries
- Relationship scoring
- Follow-up reminders
- Priority support
Team
Share contacts and insights across your team.
- Everything in Pro
- Shared contact book
- Team analytics
- Admin controls
- SSO support
Talk to a Human
Book a free 15-min walkthrough
Not sure if SignBook is right for you? Book a free 15-minute demo with our team — we'll walk you through the product and answer any questions.
Book a free demo →15 minutes · No pressure · No commitment
Testimonials
People love their contact book
Real stories from people who stopped losing track of their network.
“As a freelancer, I was terrible at keeping track of who I'd emailed. SignBook showed me I had 340 contacts I'd completely forgotten.”
Alex M.
Freelancer
“I use it to remember context before hopping on a call. The AI summaries are surprisingly good.”
Sarah K.
Startup Founder
“Finally, a contact book that builds itself. Zero manual entry.”
James R.
Sales Consultant
Get notified when new features launch
Join the waitlist and be first to know about updates.
Why SignBook
Your network deserves a smarter home
Stop losing track of people you've worked with. SignBook turns your contacts into a searchable, AI-enriched contact book in minutes — just import a CSV and the AI does the rest.
No credit card required · Free forever up to 50 contacts