Trusted by 800+ companies for cold email deliverability
Land in the Inbox — Not the Spam Folder
AI cold email platform with 87% inbox placement. Smart warm-up, auto list cleaning, and real-time deliverability monitoring — all for $28/month.
- ✓ 87% average inbox placement vs. 60–70% industry average
- ✓ Smart 21-day warm-up mimics genuine human behavior
- ✓ $500K ARR in 5 months — trusted by 800+ companies
7-day free trial · No credit card required · Cancel anytime
“Our inbox placement jumped from 62% to 89% in the first week. FirstSales pays for itself on day one.”
— SaaS Sales Director
From Spam Folder to Inbox — In 3 Simple Steps
Three steps. Land in the inbox every time.
Connect Your Email
Link Gmail or Outlook. Smart warm-up starts building your sender reputation automatically.
Import & Clean Your List
Upload leads. AI removes invalid emails, spam traps, and dead accounts before sending.
Send & Monitor
AI generates personalized emails. Real-time monitoring tracks inbox placement hourly.
What Changes When You Use FirstSales.io
Real improvements. Measurable results. Starting week one.
87% Inbox Placement — Not 60%
Your emails actually get read. Industry average is 60-70%. FirstSales delivers 87%.
Save $47/Month on List Cleaning
Auto list cleaning is included free. Competitors charge separately for the same feature.
Set Up in 8 Minutes, Not 8 Hours
Connect your email, import leads, and start sending. No technical setup required.
AI Writes Emails That Get Replies
Personalized cold emails trained on 14+ years of outreach data. Not templates — real personalization.
Real-Time Deliverability Monitoring
Hourly updates on inbox placement. Know instantly if something needs attention.
Smart Warm-Up That Actually Works
21-day warm-up mimics genuine human behavior. Variable timing, natural engagement patterns.
What FirstSales.io Does For You
Everything you need to land in the inbox at scale.
Smart 21-Day Warm-Up
Mimics human email behavior to gradually build sender reputation with major providers.
Auto List Cleaning
Removes invalid emails, spam traps, and dead accounts. Free — competitors charge $47/mo.
Real-Time Monitoring
Track inbox placement with hourly updates and instant deliverability alerts.
AI Email Generation
Personalized cold emails trained on 14+ years of sales data.
Auto Follow-Ups
Intelligent sequences that adapt based on recipient engagement.
Deliverability Analytics
Deep insights into open rates, reply rates, and inbox vs. spam placement.
Why Sales Teams Choose FirstSales.io
Side-by-side comparison with the most popular cold email tools.
| Feature | FirstSales.io | Instantly.ai | Reply.io | Lemlist |
|---|---|---|---|---|
| Inbox Placement | ✅ 87% avg | ⚠️ Variable | ⚠️ Variable | ⚠️ Variable |
| Smart Warm-Up | ✅ 21-day included | ✅ Included | ⚠️ Basic | ✅ Included |
| List Cleaning | ✅ Free included | ❌ $47/mo extra | ❌ Extra | ❌ Extra |
| Real-Time Monitoring | ✅ Hourly updates | ⚠️ Basic | ⚠️ Basic | ❌ No |
| AI Email Generation | ✅ 14+ years data | ✅ Yes | ✅ Yes | ⚠️ Templates |
| Starting Price | ✅ $28/mo all-in | ❌ $37+/mo | ❌ $60+/mo | ❌ $59+/mo |
| Setup Time | ✅ 8 minutes | ❌ 30+ min | ❌ 30+ min | ❌ 30+ min |
→ FAQ
Common questions about FirstSales.io.
Start Landing in the Inbox
87% inbox placement. $28/month. Everything included.
7-day free trial · No credit card · Cancel anytime
What Sales Teams Are Saying
800+
Companies
$500K
ARR in 5 Months
87%
Avg Inbox Placement
“We switched from Instantly.ai and saw inbox placement jump from 65% to 88% in two weeks.”
Mark T.
B2B Agency Founder
“The built-in list cleaning alone saves us $47/month. Everything else is a bonus.”
Jessica R.
SaaS Sales Manager
“FirstSales helped us book 3x more demos in Q1. The warm-up feature is incredibly effective.”
David K.
Startup CEO