I Built an MVP with Lovable and Lemon Squeezy: Full Breakdown, Costs, and Mistakes

I needed to build a simple SaaS tool to validate an idea. The goal was to go from zero to a working, paid MVP as fast as humanly possible. I didn't want to spend a week setting up a database, wrestling with React boilerplate, or figuring out global sales tax.

I picked a stack built for speed. Lovable for the front-end and back-end, generated from a prompt. And Lemon Squeezy to handle payments without me becoming a tax expert overnight. The combo felt right for a solo founder trying to ship, not refactor.

The TL;DR? It worked. I got a functional, monetized app live in about a day. There were some bumps, which I'll get into. But for pure validation speed, this stack is hard to beat.

The stack

Here’s exactly what I used for the build.

• Lovable: The AI app builder. It generated the React/TypeScript code, database, and auth from my text prompts.
• Lemon Squeezy: My merchant of record. It handled the checkout, payment processing, and all global tax compliance.

Why Lovable (and not X)

I seriously considered Bubble. It's powerful and has a huge plugin library. But honestly, the visual editor feels slow to me. I wanted to type what I wanted and see it appear. I was betting that a chat-first workflow would be faster.

Lovable delivered on that promise of speed. Going from a prompt to a full-stack app with a database in minutes is a wild experience. You get real, exportable React code, not a proprietary format. That was a huge win for me. I'm not locked in.

The downside? It's less flexible. From what I saw, you're pretty much locked into its React, Tailwind, and Supabase stack. For an MVP, I didn't care. For a complex, long-term build, I might have picked something else.

How Lemon Squeezy fit in

Lemon Squeezy

Payments were my other big worry. I did not want to deal with VAT or sales tax. That led me directly to a merchant of record, and Lemon Squeezy seemed perfect for SaaS. The main value is simple. They take legal responsibility for the sale and remit the taxes for you. For a solo founder selling globally from day one, that’s a massive weight off my shoulders.

Setting it up was fast. I created a new product, set a price, and got a hosted checkout URL. I just pasted that link into my Lovable app. Done. The built-in license key management and affiliate tools are great bonuses I can use later without needing another service.

The build (step by step)

1. Initial Prompting (~20 mins): I started by telling Lovable what I wanted. "Build a simple project management tool where users can sign up, create projects, and add tasks to each project." It generated a plan, a data model, and the initial UI.

2. Database Setup (Automatic): Lovable automatically provisioned the Supabase backend. It created the users, projects, and tasks tables based on my prompt. This happened in the background while it was building the UI. Zero effort here.

3. UI Iteration (~2 hours): The first version was functional but basic. I spent a couple of hours iterating via chat. "Change the color of the primary button to blue." "Add a confirmation modal before deleting a task." This part burned through my message credits faster than I expected, not gonna lie.

4. Creating the Product in Lemon Squeezy (~15 mins): I logged into Lemon Squeezy, clicked "New Product," gave it a name, and set the price for my monthly subscription. It auto-generated a checkout link.

5. Adding a Paywall (~30 mins): In Lovable, I prompted it to create a new "Upgrade" page. I had it design a simple pricing card with a button. I pasted my new Lemon Squeezy checkout link into that button. Quick and simple.

6. Connecting Auth and Logic (~1 hour): I prompted Lovable to lock down the core features. "Only allow logged-in users to see the projects page." "On the free plan, limit users to 3 projects." This required a bit more back-and-forth to get the logic right.

7. Publishing (5 mins): Once I was happy with the preview, I hit the publish button inside Lovable and connected my custom domain. The app was live.

What broke / what I'd change

This was not a perfect process. Here are the real gotchas I hit.

First, the Lovable message credits. The free tier gives you 5 daily credits, which is not nearly enough for a real build. I upgraded to the Pro plan for $25/month to get more. Debugging a tricky backend issue ate through 10 messages in a loop, which felt wasteful.

Second, the generated code needed some minor cleanup. It was solid 90% of the way there, but a few components had some visual quirks that I had to correct with more specific prompts. For a true production app, I'd probably export the code and clean it up myself.

Third, Lemon Squeezy's fees are higher than running Stripe directly. You pay for the convenience. The standard 5% fee is fine, but if a customer pays with PayPal from outside the US, the fees can climb towards 8%. It stings, but it was worth it to avoid the tax headache for an MVP.

The result

I have a live, working, full-stack application that can take payments. It took me roughly a day of focused work. Is the code perfect? No. Is the design award-winning? Definitely not. But it's a real product that can validate a real business idea.

I would absolutely use this exact stack again for my next MVP. The speed of going from an idea in my head to a live app with Lovable is unmatched. And the peace of mind from using Lemon Squeezy for taxes is priceless for a small operator.

Don't overthink it. Just ship.