FirstSales
AI SDR for cold email with 87% inbox placement. Finds leads, writes, sends, follows up, and books meetings automatically. Start $1 trial.
Editor's Verdict
Key Takeaways
- AI SDR for cold email
- Automated lead sourcing
- Personalized email writing
- Automatic follow-up sequences
In-Depth Review: What is FirstSales?
Firstsales.io is an AI-powered Sales Development Representative (SDR) that automates your cold email outreach around the clock. It scrapes the web to find targeted leads, writes and personalizes every email, sends automatic follow-ups, and books meetings directly to your calendar—all while maintaining an industry-leading 87% inbox placement rate. With smart 21-day warm-up, automatic list cleaning, and real-time deliverability monitoring, Firstsales.io protects your domain and ensures your emails reach real humans, not spam folders. Set up in just 8 minutes, it's the all-in-one solution trusted by founders and sales teams to replace manual prospecting and expensive, less effective tools. Plans start at $29/month with a 3-day $1 trial.
Core Features
AI SDR for cold email
An AI sales development representative that works 24/7 to find leads, write emails, send them, follow up, and book meetings straight to your calendar.
Automated lead sourcing
Scrapes the web to build your target list automatically, eliminating manual prospecting and spreadsheet management.
Personalized email writing
AI writes and personalizes every email for each prospect, ensuring no copy-paste templates and higher engagement.
Automatic follow-up sequences
Keeps the conversation going with automatic follow-ups on day 3, 7, and 12, so warm prospects never slip through.
Meeting booking integration
Automatically offers available slots, confirms times, and books meetings to your calendar, even while you sleep.
Smart 21-day warm-up
Gradually builds trust with email providers over 21 days, improving deliverability and inbox placement.
Automatic list cleaning
Scans every email list before sending, removing invalid emails, spam traps, and inactive accounts to protect your domain and keep bounce rates under 2%.
Real-time deliverability monitoring
Live dashboard shows inbox placement percentage, sender health score, bounce rates, and engagement trends, updated hourly.
Multi-inbox rotation
Rotates multiple inboxes to protect against account issues, ensuring campaigns keep running without interruption.
Unlimited mailboxes and team members
Every plan includes unlimited mailboxes and team members, allowing seamless collaboration and scaling.
A/B testing
On Growth and higher plans, test different email versions to optimize performance and increase reply rates.
Webhooks and API
Pro and Business plans include webhooks for custom integrations, enabling advanced automation.
Pricing
Starter
- 4,000 credits per month
- Unlimited mailboxes
- Unlimited team members
- Unlimited email warmup
- Campaign sequences
- Real-time monitoring
- Deliverability analytics
- Free list cleaning
- Email support (48h)
Growth
- 12,000 credits per month
- Everything in Starter
- A/B testing
- Priority support (24h)
- Unlimited mailboxes
- Unlimited email warmup
- Free list cleaning
- Real-time monitoring
- Deliverability analytics
Pro
- 30,000 credits per month
- Everything in Growth
- Webhooks
- Chat + email support (12h)
- Unlimited mailboxes
- Unlimited email warmup
- Free list cleaning
- Real-time monitoring
- Deliverability analytics
Business
- 175,000 credits per month
- Everything in Pro
- Dedicated account manager
- Phone support (4h)
- Unlimited mailboxes
- Unlimited email warmup
- Free list cleaning
Enterprise
- Custom credit volume
- Invoiced billing
- SSO / SAML
- Custom MSA
- Dedicated CSM
Pros and Cons
Pros
- High inbox placement rate87% average inbox placement vs. industry standard 60-70%, ensuring emails reach primary inboxes instead of spam.
- Free list cleaning on every planCompetitors charge $47/month extra for list cleaning, but FirstSales includes it for free, protecting your domain and reducing bounces.
- 24/7 AI automationYour AI SDR works around the clock finding leads, writing personalized emails, following up, and booking meetings, so you never miss an opportunity.
- Affordable pricingPlans start at $29/month compared to competitors like Instantly ($97/month) and Lemlist, saving up to $816/year on the Starter plan.
- Fast and easy setupLive in 8 minutes with automatic SPF, DKIM, and DMARC configuration. No technical team required.
Cons
- 21-day warm-up period requiredNew domains need a 21-day warm-up before reaching full sending capacity, which could delay immediate high-volume campaigns.
- Credit system complexityCredits are used per action (emails, lead find, research, etc.), and users need to track consumption carefully to avoid running out.
- No multi-channel outreach in core productFocuses solely on cold email; not designed for LinkedIn, phone, or other channels unless integrated externally.
- AI limitations in human nuanceWhile AI writes personalized emails, it may not fully replicate the personal touch of an experienced human SDR in complex relationship-building scenarios.
- Support restrictions on low-tier plansStarter plan only includes email support with a 48-hour response time, which may not be sufficient for urgent issues.
Use Cases & Recommended Professions
Sales Development Representative (SDR)→ View Toolkit
Automates the repetitive tasks of lead sourcing, email writing, and follow-ups, allowing SDRs to focus on high-intent conversations and closing meetings.
Startup Founder→ View Toolkit
Startups can build a sales pipeline without hiring a full-time SDR, saving significant costs while maintaining 24/7 outreach.
Sales Manager→ View Toolkit
Sales managers can ensure their team's outreach is consistent, personalized, and delivered to inboxes, improving overall team performance and lead volume.
Marketing Manager→ View Toolkit
Use AI-driven cold email campaigns to generate qualified leads, complementing inbound marketing efforts and increasing ROI.
Business Development Executive→ View Toolkit
Business development roles require constant prospecting; this tool automates the process, helping open new opportunities efficiently.
Agency Owner→ View Toolkit
Agencies managing multiple clients can use FirstSales to scale outreach across accounts with unlimited mailboxes and team members, ensuring deliverability.
Frequently Asked Questions
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ℹ️ Curation Disclosure: The overview and features of FirstSales were synthesized using AI and fact-checked by our curation team to ensure accuracy.
