First, sell.
FirstSell remembers every conversation, tells you who to follow up with today, and learns what works for you. Everything an AI chat forgets when you close the tab.
What happens when you sell with tabs, notes, and an AI chat:
DM sales don't fail on the first message. They fail on the follow-up.
Conversations get lost
One on LinkedIn, another on X, another on Reddit. A week later you don't know who replied, what you said, or where things stand.
The follow-up never happens
Almost nobody buys on the first message. But without something telling you who to message today, follow-ups depend on your memory, and memory fails.
An AI chat starts from zero every time
ChatGPT or Claude can write you a good message. But they don't remember who you messaged yesterday, who replied, or what worked last month.
The habit that actually gets you clients
Ten minutes a day. A system that remembers everything for you.
Pick
While you browse LinkedIn, X, Reddit, or Facebook, add prospects in one click. AI scores them against your Ideal Customer Profile.
Experiment
Build an experiment: every prospect gets a full conversation plan. First message, follow-ups, and what to do whether they reply or not.
Follow up
Every day you open the app and see who to message and why. Review, send, and FirstSell logs the replies and moves each conversation forward.
How FirstSell Works
From prospect to customer, with every conversation on record
Add prospects while you browse
From profiles, posts, or comments on LinkedIn, X, Reddit, and Facebook. One click and they're saved to your account.
- LinkedIn, X, Reddit, and Facebook
- One-click import
Build the experiment
Pick a group of prospects. AI scores their fit with your ICP and prepares a conversation plan for each one.
- Fit score and the reason behind it
- Full plan: if they reply and if they don't
Follow every conversation
Today's queue shows who to message and what to say. Review, edit if you want, and send. The extension picks up the replies.
- Who to follow up with today, and why
- Full history per prospect
Close and learn
When the experiment closes, leads and customers stay in your contacts with the whole conversation, and you see what worked so you can adjust the next one.
- Leads, customers, and discarded
- Learnings for the next experiment
An AI chat writes you a message. FirstSell takes you to the customer.
Any agent can write. What it can't do is remember your conversations, tell you who to follow up with, and learn from your results.
✕ ChatGPT / Claude in your browser
- ✕ Starts from zero every session
- ✕ Doesn't remember who you talked to or what you said
- ✕ Follow-ups depend on you remembering
- ✕ Doesn't measure what worked
✓ FirstSell
- ✓ Remembers every conversation, across your platforms
- ✓ Every prospect with a stage and a next step
- ✓ Tells you who to follow up with today
- ✓ Every experiment ends in leads, customers, and learnings
What an AI chat won't do for you
Six things that turn scattered conversations into customers.
Every conversation, in one place
The full history of every prospect, across all your platforms. You know what you said, what they replied, and where things stand.
Who to follow up with today
Open the app and see pending replies and today's follow-ups, each with its reason. Ten minutes and you're done.
Experiments with results
Every experiment has a start and an end. It closes with leads, customers, and prospects discarded for now: you know what happened instead of guessing.
Learns what works for you
Every closed experiment leaves an analysis of what worked and what didn't, so you can adjust your ICP, your message, and the next experiment.
Your voice, not a robot's
Messages come out in your tone. You can edit any step before sending it.
Your data is yours
Your conversations and results are stored in your account and never used for another user. We only work with public information.
Simple, honest pricing
Buy credits once, use them anytime. No subscriptions, no expiry.
Solo
Perfect for finding your first 10 clients
250 credits
- ~200 Prospect ICP Checks
- ~50 AI Message Drafts
- 1 Founder Voice Profile
- All platform tracking
- Credits never expire
Founder
For solopreneurs in active sales mode
500 credits
- ~400 Prospect ICP Checks
- ~100 AI Message Drafts
- 3 Founder Voice Profiles / ICP
- Priority prospect queue
- Package operation from 10-20 profiles
- Best value per credit
Scale
When 10 conversations a week isn't enough
1,500 credits
- ~1000 Prospect ICP Checks
- ~500 AI Message Drafts
- 6 Founder Voice Profiles / ICP
- Package operation from 10-50 profiles
- Priority support
Try Free First — New? Start with 10 free prospect checks—no credit card needed.
Honest answers
ChatGPT or Claude can write you a good message, even browsing social media for you. But every session starts from zero. FirstSell keeps every conversation, knows what stage each prospect is in, tells you who to follow up with today, and learns from your results. The writing is the easy part: the value is the system.
Today LinkedIn, X, Reddit, and Facebook, through the browser extension. We'd rather have a few platforms that work well than many that half work.
You write a few sample messages or paste some DMs you've already sent. FirstSell analyzes your tone, vocabulary, punctuation habits, and style. The first draft sounds like you. You edit it once, and the model learns faster.
No tool can guarantee it won't, and be wary of any that promises it. FirstSell works with small volumes (at most 22 prospects per experiment), you review everything before sending, and messages go out one at a time, spaced apart.
It's your definition of who you're actually trying to reach: their role, company size, industry, the pain signals they post about. You define it once. FirstSell uses it to score every prospect it finds so you only see the right people.
We're in early access. Join the waitlist for free and get priority access plus founding member pricing when we launch. No credit card required to join.
Prospects who moved forward stay as leads or customers in your contacts, with the whole conversation. The rest are discarded for now. And you get an analysis of what worked for the next experiment.
No. Your prospects, conversations, and results are stored in your account and only used for you.
Stop selling with scattered tabs and notes
Your DM sales, organized: who replied, who to follow up with, and what works for you.
Without FirstSell
- → Conversations scattered across LinkedIn, X, and Reddit
- → A spreadsheet that's never up to date
- → Follow-ups you forget
- → An AI chat that remembers nothing from yesterday
- → No idea what worked
With FirstSell
- ✓ All your conversations in one place
- ✓ Every prospect with a stage and a next step
- ✓ Today's queue: who to message and why
- ✓ Experiments that end in leads and customers
- ✓ Learnings from each experiment for the next one
Your next customer might be in a conversation you stopped following.
FirstSell remembers every conversation and tells you who to message today.
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