The vibe coder who builds apps in her spare time — and had no idea how to sell them

The situation

Sara is 31, works in HR at a car dealership, and builds small apps in the evenings and on weekends using Lovable. She has no technical background. She learned by doing — prompting, testing, breaking things, fixing them again. It started with a habit tracker she built for herself. Then a lesson planner for a friend who homeschools. Both worked. Both were useful. So she shared them — for free, with anyone who asked.

For months, that was enough. She enjoyed building. She enjoyed that people used what she made. Then one evening, someone on Instagram sent her a message: "This is really good. Can I pay you for this?"

That was the moment Sara realised she had products — but no way to sell them.

What she does today

Someone on Instagram asks how to get the habit tracker. Sara sends a link to the app. Then the conversation starts: "How do I pay?" She sends her bank details. Some people transfer immediately. Some forget. Some ask if she has PayPal. One person sent €5 instead of €4.99 and Sara spent ten minutes figuring out if she should mention it.

The lesson planner she shared with a few parents through a WhatsApp group. Two of them transferred money without being asked. Three others said they would "sort it out later." They never did.

Two products that people want to pay for. No checkout page. No confirmation email. No record of who paid and who did not. Every sale is a conversation she has to manage manually — in between her actual job.

What the real problem is

Sara does not have a payment problem. She has a gap between what she can build and what she can sell. Building the app took her a weekend. Building a payment flow — with a checkout page, order confirmation, VAT handling, email delivery — would take her weeks. Weeks spent on the part she enjoys least, for a product that earns €4.99 per sale. The effort does not match the reward. So she keeps giving things away, or sells them through bank transfers and awkward DMs.

The irony is real: she can build an app from scratch in two days, but she cannot charge for it without a manual process that feels amateur.

What she does with bookto checkout

Sara creates two products in her bookto checkout dashboard: "Habit Tracker — monthly access" at €4.99 and "Lesson Planner for Homeschool Parents" at €19. Each product gets its own checkout page with a title, a short description, and a price. She copies the links and puts them where people already find her work — on her Instagram bio, on the landing page she built in Lovable, in WhatsApp messages to parents who ask about the planner.

When someone asks "how do I get this?" — she sends a link. That is the entire sales conversation now.

What happens behind the scenes

Sara creates each product in the bookto checkout dashboard. She fills in the name, a short description, the price, and the VAT rate. She gets a unique checkout URL per product.

When a buyer clicks the link, they land on a clean payment page. They fill in their name and email, and pay via Mollie — with Bancontact, iDEAL, credit card, or another local method depending on their country. The money goes directly into Sara's own Mollie account. bookto checkout never touches it.

The buyer receives an automatic confirmation email. Sara configured the post-purchase email for each product separately: the habit tracker email contains a login link and a quick start guide, the lesson planner email contains practical instructions for parents on how to set it up.

Sara receives a notification with the buyer's name, email, and which product they purchased. VAT data is captured automatically at checkout.

The numbers

Sara sells roughly 30 habit trackers per month at €4.99 and about 8 lesson planners at €19. That is €149.70 + €152 = €301.70 per month.

Before bookto checkout, she was losing about half of her potential habit tracker sales to friction — people who asked, got bank details, and never followed through. The lesson planner was free. Now it earns €152 a month from the same group of parents who were already using it.

Her bookto checkout subscription costs €7 per month on Essentials. That is 2.3% of her monthly revenue — less than the price of one habit tracker sale.

The time saved matters just as much: no more bank transfer conversations, no more checking if payments arrived, no more keeping track of who paid in a spreadsheet on her phone. Sara estimates she spent three to four hours a month on payment administration before. Now she spends none.

What changes

Sara builds on Friday evening and has a checkout link ready on Saturday morning. The gap between "it works" and "it is for sale" went from weeks to minutes. She no longer explains how to pay. She no longer checks her bank account to see if someone transferred. She no longer keeps a spreadsheet of who owes what.

But the biggest shift is not operational — it is creative. Once the payment problem disappeared, Sara started seeing new products everywhere. A Notion template pack she had been sketching for months. A budgeting app for students. Things she would have built and given away before, because she had no way to charge for them. Now she does. She upgraded to the Flow plan, and the next product was live the same evening.

The vibe coder who gave everything away for free turned out to be someone with a product line. She just needed the last piece to fall into place.

Why not Gumroad?

Gumroad is the default answer for indie makers who want to sell digital products. And it works — the checkout is clean, the delivery is automatic, and the audience is built in.

But Gumroad is American. It settles in US dollars. For a European buyer paying €4.99 for a habit tracker, the currency conversion adds friction and cost. For Sara, the payouts arrive in dollars and she has to convert them — or explain to her accountant why her revenue is in a foreign currency.

Gumroad also takes a percentage of every sale — 10% on the free plan. On a €4.99 product, that is €0.50 per transaction, on top of the payment processing fee. Over 30 sales a month, that adds up to €15 — more than double the cost of bookto checkout's flat monthly fee. bookto checkout is not a marketplace. It does not have a built-in audience or a discovery page. What it does have is a European payment flow, settlement in euros into your own Mollie account, and a flat fee that does not grow with your revenue. For someone who already has their own channels and their own audience, that is the better fit.

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