ReactIn: from side project to full LinkedIn outreach tool

The origin: an internal tool born from a real need

ReactIn wasn't built in a garage with a 40-page business plan. It was born from a simple frustration: at Figue, we needed to prospect on LinkedIn. Not with generic mass messages. With a surgical, personalised approach that respects the people you're talking to.

The problem was that existing tools were either too expensive, too risky for LinkedIn accounts, or simply poorly designed. So we did what we know how to do: we built our own tool. A side project. An internal thing for our own prospecting.

The results came fast. Response rates we'd never seen before. Qualified leads arriving on autopilot. And most importantly, zero LinkedIn accounts banned. We'd hit a nerve. And when people around us started asking 'what tool are you using?', we realised there might be a product underneath.

“The best SaaS products are born from a problem you experience yourself. If you're your own first user, you can never lie to yourself about the product's quality.”

First users: from dogfooding to word of mouth

The first phase was pure dogfooding. We used ReactIn internally for months before offering it to anyone else. Every bug, every friction point, every feature idea came from our own daily usage. No theoretical roadmap. Just a product we kept improving because we needed it ourselves.

Then we started sharing it with friends, founders, and freelancers in our network. The feedback was unanimous: 'why doesn't this already exist?' Then came the LinkedIn post. A simple concept we called 'The LinkedIn Pixel': an interactive post where each like unlocked a pixel of an image. The result blew past every expectation.

The key takeaway: ReactIn never needed paid advertising to get started. Growth was 100% organic, fuelled by LinkedIn itself. The product did its own marketing by helping its users become more visible on the platform.

Product-market fit signals

Everyone talks about product-market fit, but how do you actually detect it? For ReactIn, the signals were clear. Users coming back every single day. Feature requests that matched our roadmap exactly. And above all, people paying before we even asked them to.

The number that convinced us: over 5,000 campaigns launched by our users. Not accounts created and forgotten. Active campaigns with messages sent, replies received, leads generated. The product wasn't just 'used'. It was embedded in our users' daily workflow.

Another strong signal: users were sending us screenshots of their results without being asked. Messages like 'look at this response rate' or 'I signed 3 clients this month thanks to ReactIn'. When your users do your marketing for you, you know you're onto something. This is exactly the kind of dynamic we help our clients create through our GTM programme.

Growth: from $0 to $6K MRR, bootstrapped

No fundraising. No dodgy growth hacks. Just a product that solves a real problem and organic distribution on LinkedIn. Here's ReactIn's real growth timeline, with real numbers. Nothing smoothed out, nothing embellished. If you're debating whether to bootstrap or raise, we also wrote a full article on the topic.

What stands out in this timeline is the irregularity. Bootstrap growth is never linear. There are plateaus, stalls, and sudden accelerations. What matters is the trend. And the trend is that each milestone was reached faster than the last.

Bootstrapping is a marathon, not a sprint. But when the product is good and distribution is organic, growth eventually becomes inevitable. The advantage of bootstrapping is that every decision is made for the product and the users, not to impress investors.

“The best funding is revenue. Every euro of MRR is worth more than a thousand euros of fundraising because it proves someone is willing to pay for what you're building.”

GTM lessons: LinkedIn as a growth engine

ReactIn is a LinkedIn product distributed via LinkedIn. Sounds obvious when you say it like that, but it's a major strategic decision. Instead of spreading efforts across 10 channels, we went all-in on one. And it paid off.

The strategy rests on three pillars. First, content. We posted regularly on LinkedIn, sharing our learnings, our numbers, our failures. Not polished corporate content. Raw, honest content with real numbers. Second, product-led growth: ReactIn helps its users perform better on LinkedIn, which makes them more visible, which attracts new users. And third, founder-led sales: every prospect conversation was led by a founder, not an SDR.

The 'LinkedIn Pixel' concept perfectly illustrates this approach. We didn't create an ad. We created an interactive experience that generated natural engagement. 1,213 comments means 1,213 qualified interest signals. And each of those comments was a potential ReactIn lead. This is exactly the kind of strategy we teach in our GTM programme, tailored to each product and market.

Conclusion: building in public is the best strategy

The ReactIn story is the story of a product studio that practises what it preaches. We don't just tell our clients how to launch a product. We do it ourselves, in public, with real numbers and real failures. That's the difference between a studio that theorises and a studio that builds.

If you have a SaaS project, an internal tool that could become a product, or simply an idea that won't leave you alone, we know the path. We walked it with ReactIn, and we're here to walk it with you. Whether it's the product, the GTM, or both, book a call and let's talk.