How do their growth rates compare?

Second Brain Labs (Sbl.so) has a month-over-month growth rate of +2.7%; Starnus has -36.6%.

How does pricing compare?

Second Brain Labs (Sbl.so): Free Trial, Paid. Free trial and paid plans. There is a 7-day free trial with no credit card required and a 90% money-back guarantee mentioned on the site, plus recurring promotions such as 20% off the first three months. Plans appear to be tiered by volume and features, so check the Sbl.so pricing page for current numbers. Starnus: Free Trial, Paid, Contact for Pricing. Starnus offers a free analysis entry point — you can run the ICP and competitor analysis at no cost without creating an account. Beyond that it uses a paid model with a self-serve tier plus a managed service for teams that want Starnus to run more of the motion; exact prices are not published publicly and are shared through a demo or sales conversation.

What are alternatives to Second Brain Labs (Sbl.so) and Starnus?

Other tools in related categories include Instantly, Explee, Success.ai, Copy.ai, Salesforge.

Second Brain Labs (Sbl.so) vs Starnus — Traffic (33.09K vs 2.6K), Pricing & Verdict

Open AI Tools

Second Brain Labs (Sbl.so) vs Starnus — Traffic (33.09K vs 2.6K), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	Second Brain Labs (Sbl.so)	Starnus
Official Domain	secondbrainlabs.com	starnus.com
Pricing Model	Free Trial, Paid	Free Trial, Paid, Contact for Pricing
Monthly Visits	33.09K (33,086)	2.6K (2,601)
MoM Traffic Delta	+861 (+2.7%)	-1.5K (-36.6%)
Primary Market & Share	🇳🇱 Netherlands (78.1%)	🇺🇸 United States (45.1%)
Direct Visits / mo	12.87K	1.02K
User Rating	3.8	3.9
Supported Platforms	Website	Website

Second Brain Labs (Sbl.so)

An autonomous AI SDR that finds buyers, runs the outreach and books the meeting

Autonomous AI SDR profiles

Outreach runs from dedicated, pre-warmed sender profiles that rotate automatically, so your personal LinkedIn account is never at risk.

Intent-based lead generation

The platform watches LinkedIn for buying signals, including job changes, funding news and competitor engagement, and builds a live lead list that updates daily.

Conversational AI that books meetings

AI opens in your voice, handles replies and objections, and books qualified buyers straight into your calendar over Google Meet.

Multi-channel outreach

Reach prospects on LinkedIn, WhatsApp, email or phone, with personalization, AI voice notes and sharing of images, video and files.

Strengths & Pros

+Sends from dedicated SDR profiles rather than your personal LinkedIn account, which addresses the biggest risk in outbound automation
+Lead list is built from intent signals instead of purchased lists, so reply rates are higher
+Bundles lead gen, outreach, sender profiles, inbox, CRM and analytics into one subscription instead of stacking tools