What is Second Brain Labs?
LinkedIn outreach at scale with unlimited SDR profiles.
Who is Second Brain Labs best for?
Second Brain Labs is best for founders and agencies that want AI to find buyers on LinkedIn and book the meetings.
Founders without a sales team
It finds leads, sends the first messages and handles replies and follow-ups, so outbound runs without hiring an SDR.
Agencies running outreach for clients
Each client gets its own workspace and sender profile, and every client is run from one dashboard.
Sellers protecting their own LinkedIn account
Messages go out from managed sender profiles that are warmed up and rotated, not from your personal account.
Outreach timed to buying signals
It watches LinkedIn for job changes, funding news, competitor engagement and post reactions, and turns them into a lead list that updates daily.
How much does Second Brain Labs cost?
Second Brain Labs, now sold as Sbl.so, costs $99 a month for Starter or $189 a month for Pro, both with a 7-day free trial, and rents ready-made LinkedIn sender profiles from $65 a month each.
- 2 outreach seats on LinkedIn or WhatsApp
- 1,000 matched leads a month
- 2 team members, API and MCP access
- 4 outreach seats
- 2,000 premium leads a month with job change, funding and competitor signals
- 10 team members, built-in CRM and an AI voice clone
Both plans start with a 7-day free trial that needs no credit card, and extra outreach seats cost $39 a month each. Ready-made LinkedIn SDR profiles to send from cost $65 a month each, or $59 each for more than 10. Elite, an invite-only tier marked as coming soon, is listed at $997, and Enterprise is priced on request. The page shows no yearly prices. Full pricing on sbl.so. We checked these prices on .
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What are the best Second Brain Labs alternatives?
Three tools on Recaply do Second Brain Labs's job.
Questions about Second Brain Labs
What is Second Brain Labs?
LinkedIn outreach at scale with unlimited SDR profiles.
Who is Second Brain Labs for?
Second Brain Labs is best for founders and agencies that want AI to find buyers on LinkedIn and book the meetings.
Is Second Brain Labs free?
You can try Second Brain Labs free before paying; paid plans start at $99 per month.
How much does Second Brain Labs cost?
Second Brain Labs's paid plans are Starter at $99 per month and Pro at $189 per month.
What are the best Second Brain Labs alternatives?
The closest alternatives on Recaply are Inboundy, Dealight and Reachy.
Where can I try Second Brain Labs?
On its official website, sbl.so.
Is Second Brain Labs the same as Sbl.so?
Yes. Second Brain Labs sells its LinkedIn and WhatsApp outreach platform under the Sbl.so name, and secondbrainlabs.com now forwards to sbl.so. Accounts and sign-ups still run on the app.secondbrainlabs.com address.
Does Second Brain Labs send messages from my own LinkedIn account?
Second Brain Labs is built to send outreach from dedicated sender profiles that it warms up and rotates, so your personal LinkedIn account stays out of it. Extra ready-made profiles cost $65 a month each, or $59 each once you take more than 10.
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