Threading that survives subject changes, across every Gmail you run.
Card on file. One-click cancel.
You run sales out of multiple Gmail accounts. Threads fragment when subject lines change. Lagible rebuilds every conversation into one chat, no matter how many times the subject mutates.
The problem
Lagible was built for three people. The founder running sales out of their own inbox plus two operational ones. The executive assistant managing the principal's inbox and three more. The multi-account operator running 30+ inboxes for cold outreach, BD, or partner programs. Same shape of problem in all three cases.
The thread that started as “intro from Sarah” becomes “Following up”, then “Quick question”, then “Demo Friday?”. Gmail treats each new subject as a fresh thread. You miss replies. You lose context. Deals die quietly.
It's not your inbox. It's Gmail's threading.
How it works
OAuth in 30 seconds. A four-signal clustering algorithm merges every conversation Gmail splits. You read it as one chat.
↓ sends only when you press Reply
OAuth flow you already know. We never draft, never delete, never send unless you press Reply. Refresh tokens encrypted with AES-256-GCM. 10 accounts on Pro, unlimited on Scale.
A four-signal algorithm (participants, time, headers, quoted text) merges the conversations Gmail splits. The same back-and-forth lands in one thread, no matter how many times the subject mutated.
Chronological chat-bubble view. Per-account color coding. AI summary or transcript Q&A when you need it. Download the whole thread as markdown anytime.
What makes us different
Built for the way email actually works: messy, threaded, and rarely tidy.
You've probably tried Shortwave or Superhuman. They cluster by sender, not by conversation. The moment your prospect changes the subject line, you lose the thread. We rebuilt the threading itself.
Per-account color coding, unified inbox, per-account filter toggle. The threading magic kicks in the moment you connect a single inbox, and scales without changing anything when you add more.
AI runs only when you press Summarise. Refresh tokens encrypted at rest. 24-hour deletion. Privacy policy reads like a normal human wrote it.
Pricing
Pro for the solo founder or EA. Scale for the operator running 30+ inboxes. Pick yours, change later.
Card on file. Zero charge for 7 days. Day-4 reminder email. Cancel before day 8 and you pay nothing.
↓ no free tier · no hidden tiers · no surprises
Solo founder or EA, up to 10 inboxes.
$39/mo USD, billed annually
Save 20% vs monthly ($49/mo)
Solo operator running 30+ inboxes who can't afford to miss a reply.
$79/mo USD, billed annually
Save 20% vs monthly ($99/mo)
FAQ
No. Shortwave, Superhuman, and Spark are smarter Gmail wrappers. They show you the same thread Gmail shows. We rebuild the thread so the conversation Gmail splits comes back as one. Different problem. Different fix.
Mark it incorrect from inside the thread view and the cluster reverts. We retrain weekly. The 30-day accuracy rate is published on the roadmap page so you can see it before you sign up.
Gmail and Google Workspace are live today. Other providers are tracked on our public roadmap. Vote on what ships next.
We store metadata for every message and the full content of the last 90 days, encrypted at rest. Older messages are fetched on demand when you open a thread. Delete your account and everything is purged within 24 hours.
No. Row Level Security is enforced on every database query. OAuth refresh tokens are encrypted with a server-held key that never reaches your browser. We never share email content with affiliates or third parties.
AI summaries and Q&A only run when you explicitly click them. Thread content is sent to OpenAI only at that moment. Per-user monthly caps prevent surprise bills. Auto-summarisation is disabled and will never be enabled.
Five tiers is paralysis by choice. Pro covers solo founders and EAs. Scale removes every limit for the operator running 30+ inboxes. You know within 60 seconds which one you are. Multi-user team inboxes are deliberately out of scope in v1: each operator runs their own Scale plan.
We email you on day 4 as a reminder. On day 8 your card gets the first charge. Cancel anytime in one click from your dashboard. Cancel before day 8 and you're not charged at all.
Trial signups without a card mostly don't finish setup, never use the product, and ghost. Requiring a card filters to people who are seriously evaluating the tool, which lets me build for them instead of fielding support for tire-kickers. Cancel takes one click. You're in control.
Built by
Founder. Full-stack developer. I ran sales out of my own inbox for two years and watched deals die in subject-line drift. I built Lagible because no tool on the market would thread a conversation that started as “intro from Sarah” and ended as “Friday call?”.
I ship every week. I read every email myself at ayushopchauhan@gmail.com. Spot a bug or want a feature, write to me. No support queue. No chatbot. No “your ticket has been assigned”.
↑ real human · usually replies same day
Start the 7-day trial. Card on file. $0 today. Cancel in one click.