Linchpin Funnels Blog/The Simple Blueprint to Building a Web App That Converts

The Simple Blueprint to Building a Web App That Converts

A few weeks ago, we launched MRR Magic—a free tool that helps entrepreneurs create a membership revenue plan in seconds.

This wasn’t some expensive SaaS build.

No hiring developers. No complicated tech stack.

I built it inside ChatGPT because, well… I can.

But even if you’re not a developer, you can still do this.

Here’s how.

1. Pick a Simple Idea That Solves a Problem

You don’t need a massive software product.

You need a simple tool that delivers a quick win.

For us, that was helping people map out their membership revenue model in seconds instead of hours or days of spreadsheet work.

Think about your audience:

What’s one small but valuable thing they struggle with?

How can you automate that into a tool?

2. Build It the Fastest Way Possible

I coded MRR Magic directly in ChatGPT because I have dev experience.

But most people don’t need to do that.

If you want to DIY:

Bubble.io – No-code web apps
Softr.io – No-code front-end builder
Typeform + Airtable – Dynamic tools with automation

The key is speed to launch.

3. Integrate It With Your Funnel

We didn’t just make a free tool and hope for the best.

We gave value first then asked them to opt-in for the lead magnet using a Reverse Lead Squeeze Funnel:

Give value first → Let them use the tool.

Then ask for the opt-in → If they want to save or refine their results, they enter their name + email.

This frictionless approach helped us convert 26% of cold traffic into high quality leads.

4. Drive Targeted Traffic

Once the tool was live, we focused on driving the right traffic:

Social posts – Educating and teasing the tool.

Cold ads – Direct to the free tool (no hard opt-in upfront).

T-Shirts – I made custom shirts for me and Alma that we wore at FHL.

And because people actually used it, engagement was higher, which meant lower ad costs and better conversion rates.

The Takeaway

You don’t need a massive product.

You don’t need a development team.

You need a simple, valuable tool that gives people a real win.

When you do that—and pair it with the right funnel strategy—your free tool becomes a lead-generation machine.

Try it. Then let me know what you build. 🚀

​— James

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Hi, I'm James Curran

Chief Funnel Builder at Linchpin Funnels

We've believed that "Linchpin Is The Way" since FHL 2022 and have been serving the community ever since!

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