The person you need to meet is already in your network.
Let AI and human judgment weave the connections sleeping in your cards.
Instead of finding new people, the answer is already among those you've met.
The problem? You can't see it.
80% of exchanged business cards
are never looked at again
83% of people you want to meet
are just 2 hops away
Referral-based deals close
at ~4x higher rate
After 72 hours
they won't remember you
Not for storage. Not for occasional use.
tsumugu is a daily-use business card app powered by Google Calendar. Manage every meeting and schedule here — your contacts become part of your everyday workflow.
Organizing alone doesn't build relationships. tsumugu bundles every stage into a single flow.
AI reads each card and extracts hidden value through four questions: collaboration scenarios, contribution points, network type, and character insight.
Type "construction executive" and AI finds the right bridge in your network. Trustworthy introductions via the consent protocol.
Swipe right on any contact to sync Google Calendar · Zoom / Google Meet instantly. Auto-send meeting invites, AI follow-up emails in 3 tones, and view full meeting history per contact — discovery becomes real action.
Contact details are never shared without consent. Referrals only happen when the intermediary approves. Trust comes before efficiency — by design.
Three principles tsumugu upholds. Not feature specs — the root of our design.
AI doesn't ask "what can this person give me?" — it asks "what can I offer them?" first. Finding your contribution points is tsumugu's first job.
No A-rank or B-score. Instead, we explain in words why you should meet someone. The final judgment is always yours.
Referrals require the intermediary's approval. Privacy builds trust — we won't reverse this order. Safety before speed.
"In the age of AI, what matters most is neither the algorithm nor the data — but the human who chose to think again." — tsumugu design principles
AI analyzes each card from five angles: ① collaboration scenarios ② contribution points ③ network type ④ character insight ⑤ self-intro generation. Reasons, not scores.
Natural-language search ("construction executive") → AI surfaces bridge contacts → approve/decline per candidate. Partial approval supported. Protocol built on trust.
Auto-matched against existing contacts on scan. You decide: same person with multiple cards, an update, or a duplicate.
Formal / Casual / Friendly. Adjusted for role and context.
Displays in your language automatically. Tap [View Original] anytime to check the card's actual text.
Swipe right → pick a slot from 14-day calendar → Zoom or Google Meet link auto-generated → invitation email sent automatically. Full meeting history with each contact, too.
AI finds "the person you should meet today" from your massive card collection. Prepare three contribution points before your next dinner or trip.
"5 years of cards sat dormant. tsumugu surfaced collaboration scenarios, and three new business lines launched in six months."
No need to build a network from scratch. Find bridge contacts in your existing relationships and grow trustworthy deals via consent-based referrals.
"I stopped cold emailing and switched to referral-first. Close rate 4x, and the quality of meetings completely changed."
Digital card + public booking page. No app required on the other side. A single QR closes the loop on sales efficiency.
"QR codes I handed out at the expo filled next week's calendar on the spot. 10x the response of paper cards."
There are other card apps. But only tsumugu is designed to weave relationships.
* Feature info as of April 2026 from publicly available sources. Subject to change.
Even on the Free plan, 50 scans/month and your digital card stay available. Upgrade to a paid plan (every feature unlocks from Starter) when you need AI analysis, referrals, and Calendar/Zoom integrations.
For those who want to start exploring discovery & AI.
For those who want plenty of AI headroom and unlimited network search.
Everything truly unlimited — no cost caps.
Shared contacts, Premium features for all. ~20% off individual pricing.
¥600–¥2,400 per seat / month depending on tier
Team 20 Coming soon
Step-by-step guides, troubleshooting, and migration help — all available in the help center.
Questions, feedback, or business inquiries — we'd love to hear from you.
Before searching for new people, try looking inside those you've already met.
tsumugu weaves the sleeping connections.
"In business, what matters most is neither the product, nor the price, nor the algorithm —
but the human who chose to think again."