Replies that sound
like you wrote them.
Learns your tone from past emails. Drafts replies that sound like you — in seconds.
- Trained on your sent history
- Context-matched drafts, instantly
- Important emails rise automatically
2,400+ professionals use Triskelion
Inbox
Sarah Chen
Q3 planning sync — Tuesday?
Marcus Webb
Partnership proposal
Priya Kaur
Invoice #4821
Vercel
Deployment succeeded
David Park
Re: design feedback
Sarah Chen
Q3 planning sync — Tuesday?
100%
your voice
2.4s
avg draft time
Trusted by teams at
"I went from spending 2 hours on email to 20 minutes. Triskelion just gets my voice — responses I'd be proud to send."
Sarah Chen
Head of Product, Notion
"The tone matching is genuinely unsettling. By week two, my team couldn't tell which replies were mine and which were AI-drafted."
Marcus Webb
Partner, Sequoia Capital
"Deployed to our CS team. Reply quality went up 40%, handle time dropped by half. Our CSAT scores haven't been this high in years."
Priya Kaur
Director of CX, Stripe
2,400+
Professionals
94%
Tone match
18min
Avg. time saved/day
4.9★
Average rating
Your entire inbox. Cleared in 2 minutes.
One-line summary. Instant draft. Press R to reply, S to skip. Zero scrolling.
Instant context
One-line summary. Everything you need to decide.
Draft in your voice
A reply appears, tone-matched and ready.
One keystroke
R to reply, S to skip. That's it. 50 emails in under 2 minutes.
Free · 50 sessions · No card
Sarah Chen
Q3 planning sync — are you free Tuesday?
Up next
Marcus Webb
Partnership proposal — quick thoughts?
Priya Kaur
Invoice #4821 — payment confirmation
Vercel
Your deployment to production succeeded
2 min
avg. inbox clear
94%
tone accuracy
18 min
saved per day
1-click
approve & send
What Triskelion does
Every tool your inbox needs.
Nothing it doesn't.
Six features. Zero bloat. Each one built to save time and sharpen every reply.
Tone Matching AI
CoreLearns from your sent history. Every draft sounds exactly like you.
Smart Auto-Drafts
CoreOne-click drafts for any email. Context-aware, tone-matched, length-calibrated.
Priority Detection
IntelligenceSurfaces what actually matters. VIPs, deadlines, and action items — automatically.
Sender Profiling
IntelligenceBuilds a profile for every contact. Tone, history, and seniority — always in context.
Inbox Intelligence
ProductivityUnderstand your inbox at a glance. Weekly summaries, thread heat-maps, zero anxiety.
Undetectable Replies
SafetyZero AI tells. No robotic cadence, no detectable phrasing. Passes every detector.
Get started in 3 steps
Live in under a minute.
Connect Gmail
One-click OAuth. Builds your voice profile from sent history. Under 60 seconds.
Gmail API · Read-only · Revoke anytimeAI Analyzes Your Inbox
Profiles each sender, detects urgency, matches your tone. Gets sharper over time.
Claude 3.5 · Context-aware · PrivateApprove & Send
One glance to approve. Edit anytime. Nothing sends without you.
You always approve · No auto-send · Full controlLive demo
Watch it work in real-time.
Pick a scenario. Watch it analyze, draft, and match your tone in real time.
Triskelion — Quick sync this week?David Kim
just nowVP Engineering · Stripe
Quick sync this week?
Monitoring for new email...
Transparent pricing
Pick your plan.
Start free. Upgrade when you're ready. Cancel anytime.
Start free. No card, no commitment.
- AI draftslimited
- Tone detectionbasic
- Gmail accounts1 only
- Full tone matching
- Sender profiling
- Blitz mode
- Human-reply mode
- API access
Full drafts and tone matching for one inbox.
- Unlimited AI drafts
- Full tone matching
- Sender profiling
- Priority email detection
- Human-reply mode
- Up to 3 Gmail accounts
- Blitz mode
- API access
Pro, plus Blitz. Clear your inbox in minutes.
- Everything in Pro
- Blitz mode
- Unlimited Gmail accounts
- Priority support
- Early access to new features
- API access
Paid plans include a 7-day free trial. No credit card required for Free.
Need more seats or custom limits? Contact us