An interactive digital product is an AI-powered tool, like a calculator, dashboard or quiz, that gets your clients results in seconds.

No coding needed

Turn boring digital products into interactive tools that everybody wants to buy

SellbySunday turns your genius into an interactive digital product, with a sales page and 15 ads, ready to sell to strangers in 1 afternoon.

Your dashboard
The SellbySunday dashboard with the five steps and the products you already built

Live by tomorrow

  • 1 afternoon to build
  • 15 products included
  • 0 lines of code
Thessa de HaanBuilt by Thessa de Haan, founder of REVENU. Your tool gets built inside your own Lovable or Claude account, so it stays yours.

This is how you monetize AI instantly

As someone who's sold over $250k in low ticket digital products, I'm telling you: this is a HUGE DEAL and it WILL change your life

SellbySunday is the secret behind how I effortlessly make & sell incredible interactive digital products and tools that everyone wants to buy (without doing any coding). And now, with this tool, I do it in 2-6 hours.

This is your sign to let SellbySunday help you create an AI powered tool for you so you finally monetize AI

I want to get paid

Watch a ‘basic’ digital product turn into something your clients actually LOVE paying for.

Your knowledge deserves better than a PDF that sits in a downloads folder.

I used to sell the most ugly and hard-to-use digital products that didn't do any justice to my genius. But not anymore.

I want my clients to get a sweet dopamine hit every time they open my knowledge. A Google Doc doesn't do that 🫠 Neither does a Notion template.

So I built SellbySunday. You tell it your niche and it turns your knowledge into an interactive product that works like an app, no coding. Plus your salespage and 15 ads, so you can sell it to strangers by the end of the afternoon.

See it happen

Give SellbySunday your niche. Walk away with a product that sells.

SellbySunday

What you type

What's your niche?Content strategists.Perfect. Build a Content Pillar Generator and sell it at $67.Love it ✨

What comes back

And then your phone starts pinging

Built for you

You thought selling digital products meant offering a course, an Excel sheet or a boring PDF. Not anymore.

sound familiar?

  • Your knowledge is crazy good, but the way you package it sometimes feels kinda basic.
  • You want your clients to actually LOVE using your digital products.
  • But your current products don't quite give that WOW effect right now...

That's exactly why I've built SellbySunday.

That's where you turn your genius into a criminally good interactive digital product in 1 afternoon, without any coding. You tell SellbySunday your niche, it hands you the build prompt for Claude or Lovable, plus the sales page and the ads so that you're ready to sell it to strangers this week.

Requirements

What you need to run it

  • An audience you understandA niche, and a rough idea of what she's stuck on. Steps 1 and 2 do the rest, including the idea itself if you don't have one yet.
  • A Lovable or Claude accountFrom $20 a month, cheaper than most course platforms. That's where your tool gets built and hosted, in your own account, so you own it. No tech skills or coding required.
  • One focused afternoonFrom answering questions about your niche to a product you can sell, in two to four hours. No 80 question survey.
A morning of Stripe notifications from digital product sales, buyer names blurred

Proof of concept

My first interactive digital product made $2,782 in its first week.

I didn't post about it every day. My tool sells itself to people who never heard of me, while I'm asleep or at lunch.

Everything that made my tool sell to strangers is built into SellbySunday, so yours gets built for your niche instead of mine.

I want this for my idea

Sound familiar?

You felt late to PDFs, late to Instagram, even late to courses. But you’re about to have an unfair advantage.

The game of online selling has changed. AI has made it SO easy to turn even your most boring PDF into an amazing interactive tool or app that you can make and sell within just a few hours, without doing any coding.

SellbySunday unlocks endless revenue opportunities for everybody who’s smart enough to monetize this new era of selling digital products.

First

A PDF

explains it to them

Then

A course

teaches them

Now

An interactive digital product

does it for them

Your niche, your tool

What an interactive digital product could look like in your niche.

Your clients won't pay for information Claude gives them for free. They WILL pay for a tool that does the work for them, in 60 seconds. This is what that swap looks like in your niche.

Content Creators

The old

A 100 hooks PDF

The new

Hook Generator

Your clients type in their topic, and walk away with 20 hooks written for their own audience, ready to film today.

Content Strategists

The old

A content calendar template

The new

Content Idea Generator

Your clients fill in their niche and audience, and walk away with post ideas for the next 90 days.

Business Coaches

The old

A pricing guide

The new

Price Calculator

Your clients enter their hours, costs and income goal, and the tool tells them exactly what to charge for their offer.

Nutritionists

The old

A recipe ebook

The new

Hormone Balance Food Protocol

Your clients answer a few questions about their symptoms, and walk away with the exact foods to add and remove this week.

Fitness Coaches

The old

A 12-week workout plan PDF

The new

Workout Plan Builder

Your clients enter their goal, their equipment and the days they can train, and walk away with a plan that fits their week.

Relationship Coaches

The old

An attachment styles ebook

The new

Attachment Style Action Plan

Your clients take the quiz, and walk away with their attachment style and the exact steps to break old patterns this week.

Freelancers

The old

A proposal template

The new

Proposal Generator

Your clients paste in the brief, and 60 seconds later they have a proposal ready to send, in their own words.

Interior Designers

The old

A style guide PDF

The new

Room Style Finder

Your clients describe how they want to feel in the space, and walk away with a mood board direction and a shopping list.

How it works

Take a peek inside SellbySunday.

From “I have no idea what to sell” to selling, in 1 afternoon. SellbySunday hands you the ideas too, so you're never stuck on a blank page.

Step 1 of 5
Step 1 in the tool, the audience and price advisor

Step 1

Who she is, and what she'll pay.

You type your niche in plain words, and you get her back in detail: what she's stuck on, what she already buys, and the price she says yes to without thinking about it.

Let's address the obvious

You might be wondering if this works for you, if…

You don't have to. Step 3 hands you one exact prompt, you paste it into Lovable or Claude Code, and your tool builds itself without a single line of code from you.

You understand your audience, and that's the only input SellbySunday needs. The idea, the build prompt, the page and the ads come out the other side.

SellbySunday is a web app. You open it, type in your niche and click through the five steps, and the only thing you do yourself is paste the prompt into Lovable and watch your tool get built.

You don't. SellbySunday is made for building your tool on your own, in one afternoon, with nobody else on the payroll.

Thessa de Haan, founder of REVENU

Built by

Thessa de Haan, founder of REVENU.

I didn't realize just how much money I had been leaving on the table by ignoring the possibilities AI offered. Even though I have been selling courses and digital products for over 4 years, I wasn't using it to create & sell products yet.

I tried to avoid it for a while, feeling intimidated, but I always felt it would be the portal to making a lot of money. So I got rid of all my excuses, and when I dove in, I discovered how easy it actually was to unlock an insane extra amount of revenue by creating the most amazing interactive digital products that everybody wants to buy, while I'm out living my life.

And now, it's your turn, by letting SellbySunday come up with your own interactive digital tool, build & sell it without the endless prompting or coding.

I want this for my idea
One-time payment, no subscription

Build it today. Sell it by tomorrow.

Everything below, included.

  • ✓Step 1: Audience & Price Advisor ($97)
  • ✓Step 2: Product Idea Lab ($97)
  • ✓Step 3: AI Tool Prompt Builder ($97)
  • ✓Step 4: Sales Page Generator ($197)
  • ✓Step 5: Ad Copy Machine ($147)
  • ✓Bonus: Name Options for Your Tool
  • ✓Bonus: Order Bumps Suggestions
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What buyers say

The women who stopped waiting to be technical enough.

★★★★★

“Step 3 alone is worth $200. The sales page it wrote for my quiz tool converted immediately.”

Mia R., brand strategist

★★★★★

“I was overthinking my niche for months. Step 1 settled it in 10 minutes. Then I built and sold.”

Jade T., content creator

FAQ

Honest answers.

You're busy enough. Why spend months figuring it out yourself when it can be done for you in an afternoon? That's kind of the whole point, you could sell by Sunday.

None. SellbySunday writes everything you need: your idea, the build prompt for your interactive digital product with your own method baked in, your sales page and your ads. You paste that prompt into Lovable or Claude Code, and your interactive digital product gets built there, in your own account.

To build your interactive digital product you need a paid subscription to Lovable or Claude Code, from $20 a month, cheaper than most course platforms. Both integrate with Stripe, so they can generate your checkout page too.

An interactive web tool, like a quiz, a calculator, a content generator or a strategy planner. Your buyer opens it in her browser, fills in a few things, and gets a real result back. One focused tool, not a full platform.

That's exactly what Steps 1 and 2 are for. You give SellbySunday your niche and your audience, it tells you what they'll pay, then hands you validated ideas ranked by how badly your people want them. You'll have your idea before you finish Step 2.

One focused afternoon. Most people are done in two to four hours, because the AI does the heavy lifting and you just make the decisions.

One-time payment. You pay once and you're in, with no auto-renewal and no recurring charge. Your access lasts three months from the day you join, with up to 15 full product builds in that time.

Two, and both are small. Your Lovable or Claude subscription from $20 a month, and the API cost when your own customers use your tool, which averages $0.50 to $1 per user with the guardrails built into the prompts. SellbySunday itself has no hidden fees.

Not at all. SellbySunday is a live AI tool, so there's nothing to watch and nothing to finish before you start making money. You open it, click through the five steps, and leave with a product ready to sell.

Yes. You own and host your product and your sales page entirely, inside your own Lovable or Claude account, so you can change anything whenever you want, even after launch.

Your turn

Build your tool this afternoon. Watch it sell tomorrow.

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