Use cases

Online course platform

Modules, video lessons, learner progress, certificates and one-off or subscription pricing, with the video hosted here.

Selling a course usually means paying three bills: the platform that charges per learner, the video service and the payment gateway. The part nobody counts is that the content and the learner list stay with the platform, and leaving costs you the whole catalogue. Here enrolment is an access rule, video sits in your app's own quota behind a signed URL, and the price does not rise because you sold more.

People reach this page looking for

  • how to build an online course platform
  • membership site with paywall
  • sell courses with video hosting included
  • course app with certificates

What gets built

Four things you could have working this week

Not a feature list. These are the apps people actually describe, and what the platform hands back when they do.

01

Courses with modules and video lessons

Video uploaded and served from your app's own quota, through a signed URL, not as a public file any learner can copy and pass on.

02

Enrolment as an access rule

A lesson does not open for someone who is not enrolled, and that is decided in the database. A leaked link does not become access.

03

Progress, certificates and materials

Progress saved per lesson, PDFs attached, and a certificate issued when a learner reaches one hundred per cent.

04

One-off purchase or subscription

Buy one course, buy the catalogue, or subscribe monthly, plus a public page per course for search engines to find.

Included

The parts nobody wants to build twice

Database, login, payments and publishing are part of the platform, not a list of services you go and wire up afterwards.

A real database, not a form dump

Every screen reads and writes models you can open, query and export. The data is a database of yours from the first minute, not a spreadsheet the app pretends to read.

Login for your own users

Email, magic link and Google sign-in, with roles and per-record ownership enforced by Postgres itself. A badly written screen cannot become a leak, because the database answers empty.

Payments that land in your account

Stripe, Pagar.me and Mercado Pago connect once. Card, Pix, boleto and subscriptions, with the card fields rendered by a hosted vault your app never touches.

Web, installable, and in the stores

One project published three ways: your own domain, an icon on the phone straight from the browser, and a signed binary submitted under your own store account.

Found in search, and by the models

Titles, metadata, sitemap, structured data and social images are generated with the app. Pages get found instead of only being linked.

React code you can take with you

Real React, edited line by line or by clicking the element on screen, exported as a ZIP or pushed to your GitHub. No lock-in you have to negotiate your way out of.

How it works

From a paragraph to a published app

Three steps, and the second one is the one people do not believe until they watch it.

Describe it in plain language

Say what the app does and what it has to remember. No diagram, no schema, no naming a single framework.

Watch it get built

Screens, data models, login and payments appear while you read. Anything you do not like, you say so and it changes.

Publish, then keep changing it

Live on your domain in seconds, with version history behind you. Tuesday's conversation is Tuesday's release.

Start here

A prompt you can paste right now

This is a complete first message, not a slogan. Paste it, change the nouns to yours, and you have an app to react to instead of a blank page.

Build an online course platform. Courses with modules and video lessons, plus PDFs attached per lesson; a learner enrols by buying a single course or subscribing to a monthly plan that unlocks the catalogue; a lesson only opens for someone enrolled; progress is saved per lesson and a certificate is issued when a learner completes a course; every course has a public page with syllabus and price, written to be found by search engines; instructors sign into their own account, publish lessons and see enrolments and revenue for their own courses only; and I see a dashboard with active learners, completion per course and revenue per month.

Ready to start from

Templates in this category

A template is a working app with data already in it. Open one, make it yours, publish it under your own account.

Cortile

Content

A full-bleed site for an architecture practice, with a small CMS behind it and an inbox that reads each enquiry against the criteria the studio itself wrote down.

15 screens

Questions

Frequently asked questions

On the platform. Uploaded video is stored and streamed from your own app's storage quota and delivered through a signed URL. You do not need a separate video service in order to launch.

Describe it. See it running. Publish it to the store.

Free to start, no credit card. You only pay when you want to publish under your own brand, and you take the code with you if you ever want to.

Build this app freeUse cases