Hello, world: why we built List Pro
Every marketplace listing needs professional feature images. We built a tool that generates them from a screenshot and a sentence.
Feature images take hours in a design tool or hundreds of dollars from a freelancer — List Pro generates a marketplace-ready one from a screenshot and a sentence instead.
Every day a listing goes live with plain screenshots is a day it's converting below what it should. Makers launching on Product Hunt, Gumroad, and the Shopify App Store all face the same problem: professional feature images take hours in a design tool, or hundreds of dollars from a freelancer.
List Pro closes that gap. Upload a screenshot, write a one-line description, and get back a marketplace-ready feature card — sized correctly for the platform you're launching on, with annotated callouts pointing at the feature you're describing.
Mockups vs. Feature Cards, at a Glance
| Aspect | Mockups | Feature Cards |
|---|---|---|
| What it actually shows | The app placed inside a device frame | One specific feature, annotated and explained |
| Core question it answers | "Is this a real product?" | "What does this do for me?" |
| Screenshot's role | The whole image | One deliberate piece of a composed image |
| Callouts / annotations | None | Yes — arrows and labels pointing at the relevant UI |
| Headline copy | None | Generated from your feature description |
| Best used for | Landing page hero, proving the product exists | Marketplace gallery images, explaining functionality |
| Platform sizing | Manual resize per platform | Auto-recomposed per platform (layout, headline size, callout density adapt) |
| Time to produce | Minutes, DIY | Minutes, DIY — but designer-quality output |
| Where it wins | Speed, when you just need something live | Conversion, when the buyer is deciding in seconds |
This blog will cover practical, deployable advice on running a calm, organized launch — not just theory. New posts go up regularly; check back often.