The short version
These are different products. Mockuuups drops your screens into device and lifestyle scenes for websites, decks and social. Nuvex builds the listing screenshots you upload to App Store Connect. Most teams eventually want both.
What Mockuuups Studio actually is
Mockuuups Studio is a large library of device mockup scenes — phones on desks, in hands, on backgrounds — that you drop your screen into. The output suits landing pages, pitch decks and marketing sites.
Nuvex, by contrast, is built for one output: you upload your raw app screens and a sentence describing your app, and it returns a finished five-frame store campaign in about thirty seconds. Your uploaded screen is masked before generation, so your real interface passes into the output pixel-for-pixel while the AI designs everything around it.
When Mockuuups Studio is the better choice
Genuinely — these are the cases where we would tell you to use it.
You need website or deck imagery
A phone-in-hand scene on a landing page is exactly its job, and not something Nuvex makes.
You want a real-world scene
Store screenshots should be flat editorial posters, so Nuvex deliberately never produces environmental photography.
You need many devices and angles
The scene library is far larger and more varied than any generator.
When Nuvex is the better choice
You are uploading to App Store Connect
That needs specific dimensions, flat framing and marketing copy on the frame — a different output entirely from a mockup scene.
You need headlines and layout, not just a frame
A mockup places your screen in a scene. It does not write your headline or design a campaign.
You need a five-frame set that reads as one thing
That is a campaign-level job, not a per-image one.
Honest caveats about Nuvex
This is not really a competition — the tools do different jobs. Use Mockuuups for your website and Nuvex for your listing.
Nuvex also makes still frames only — App Preview video needs a different tool, and we would rather say that than sell you a workaround. And it never puts invented star ratings, unearned award badges or fake press logos on a frame.
Frequently asked questions
Can I use Mockuuups images as App Store screenshots?
Technically the dimensions can be made to fit, but lifestyle scenes convert poorly in store listings and Apple expects screenshots that clearly represent the app in use.
Do I need both?
Often yes. They cover different surfaces: the store listing versus your marketing site.
Try it on your own screens
Free credits on signup, no credit card. Generate a set and compare it against what you would get anywhere else — that comparison is worth more than any feature table.