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Nuvex takes your app’s screens and a sentence about what the app does, and returns a finished set of App Store screenshots: background, palette, type, layout and a headline for every frame, designed for that app. There is no template underneath. Claude plans each set; GPT Image paints each frame.
Why it exists
Most screenshot tools are template libraries: pick a layout, drop your screens into the slots, ship. It works, and the result is recognisable, which is the problem. Anyone scrolling the store has seen that layout on four other apps this week.
The alternative was a designer’s fee and a week of their time. Nuvex is for the gap in between: the app is finished, the listing is not, and there is neither the budget nor the designer.
How it works
Two models do two jobs. Claude reads your screens and description and plans the set: a design language for your app, a job and a two-line headline for every frame, and which screen goes where. GPT Image paints the frames from that plan at 1320 × 2868, with your real screens in the phones. Any single frame can be changed afterwards in plain words while the others stay as they are.
The painting follows a playbook distilled from sets made by professional designers: one background, big phones, short headlines, nothing touching the side edges. The full explanation.
What it will never do
No fake star ratings, award badges, press logos or download counts. If you didn’t earn it, it doesn’t go in a screenshot.
Sets are generated per app and never recycled between users.
You own what you make, and can use it commercially, including with free credits.
Credit-pack credits never expire, and paid downloads stay unwatermarked.
What comes out
App Store screenshots, and nothing else: portrait iPhone frames, downloaded at 1320 × 2868, Apple’s largest iPhone size. Images are scaled evenly, never stretched. Details on the App Store sizes page.
Headlines can be written in 21 languages. Nuvex makes still images only: no app preview videos, and no iPad or landscape sets yet.
Who it is for
- Solo developers shipping a first app
- Founders who need store assets this week
- Small teams with no designer
- Anyone tired of the template look
- Listings going out in several languages
- Brands whose design team already makes custom sets
- App preview video
- Pixel-exact reproduction of an existing brand system
- iPad or Android-only listings