Lavender is an AI email coach that works directly inside Gmail, Outlook and your sales engagement platform — scoring your cold emails in real time and suggesting specific improvements to increase reply rates. It's used by 50,000+ sales professionals at companies including LinkedIn, Zoom and HubSpot.
Unlike general AI writing tools, Lavender is purpose-built for cold email and sales outreach. Its AI analyses your email against millions of cold email data points and gives you a score out of 100, with specific feedback on subject line, email length, personalisation, readability, call to action and sentiment. You see exactly why your email might underperform before you hit send.
Lavender also includes a prospect intelligence panel that pulls data about your recipient from LinkedIn, news sources and company data — surfacing relevant personalisation opportunities without leaving your inbox. Sales teams using Lavender typically see a 2-3x increase in reply rates compared to emails written without AI coaching.
Key Features
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Email Score
Real-time score out of 100 for every email — shows exactly what to fix to improve reply rates before sending.
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AI Writing Suggestions
Specific rewrite suggestions for subject lines, openers, CTAs and email length based on what drives replies.
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Prospect Intelligence
Pulls LinkedIn data, company news and job changes for your recipient — personalisation opportunities at a glance.
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Gmail & Outlook Integration
Works natively inside Gmail and Outlook — no tab switching, scoring happens as you write.
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Sales Tool Integration
Integrates with Salesloft, Outreach, HubSpot and major sales engagement platforms.
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Team Analytics
Track email scores and reply rates across your team — identify coaching opportunities and top performers.
Pros & Cons
What we love
Real-time scoring catches problems before sending
Specific, actionable feedback — not just generic tips
Works natively inside Gmail and Outlook
Prospect intelligence saves research time
Free plan available for individual reps
Watch out for
Focused on cold email — less useful for newsletters or nurture
Team plans get expensive for large sales orgs
Suggestions can feel formulaic if over-relied on
Prospect data quality varies by region
Frequently Asked Questions
Lavender sits inside your email client and scores every cold email you write out of 100 in real time. It analyses subject line effectiveness, email length, reading level, personalisation, opening line quality and call to action — then gives specific suggestions to improve each element. The goal is to identify and fix the things that reduce reply rates before you send the email.
Lavender has a free plan that includes 5 email analyses per month — enough to evaluate whether it improves your emails. The Individual plan at $29/month gives unlimited email scoring and AI suggestions. Team plans with manager analytics and sales tool integrations start at $49/user/month. Most individual SDRs and founders start on the free plan and upgrade once they see the reply rate improvement.
Yes — Lavender works natively inside Gmail as a Chrome extension. It also works inside Outlook, Salesloft, Outreach, HubSpot Sales and most major sales engagement platforms. The scoring panel appears alongside your compose window so you can see your score and suggestions without switching tabs or copying text into another tool.
Lavender's own data shows that emails scoring 90+ on their platform get 3x more replies than emails scoring below 50. Independent users report 2-3x improvements in cold email reply rates after consistently using Lavender coaching. Results vary by industry, target persona and email quality before using Lavender — reps with worse starting emails tend to see bigger improvements.
The best AI tool for cold email — Lavender's real-time scoring and specific improvement suggestions genuinely improve reply rates in a way that generic AI writers cannot.
Quick Facts
Best forSales reps, SDRs, founders
PricingFree / From $29/mo
Free plan5 emails/mo free
Founded2020
Try Lavender
Score your cold emails in real time and improve reply rates — free plan available.