What is an app store mockup generator?
A mockup generator takes your raw app screenshots — the plain screen captures from your phone or simulator — and wraps them in a professional design. This includes:
- Device frames (iPhone, Android, or no device)
- Custom backgrounds (gradients, solid colors, photo backgrounds)
- Headlines and marketing copy
- Floating UI elements (rating cards, chat bubbles, trust badges)
- Color palettes matched to your app category
The result is a store-ready screenshot that looks like it was designed by a professional agency — not a raw screen dump.
How it works
- Upload your app screens. Drag in the screenshots from your phone, simulator, or design tool.
- Describe your app in one line. Example: "A budgeting app that helps freelancers track irregular income."
- AI generates 5 mockups. Each gets a unique background, headline, color palette, and composition — designed for your app category.
- Export at any size. App Store, Google Play, social media, website — all exact dimensions.
Supported devices and sizes
- iPhone 16 Pro Max: 1290 × 2796 px (required for App Store)
- iPhone 16 Pro: 1206 × 2622 px
- iPhone 16: 1179 × 2556 px
- iPad Pro 13": 2064 × 2752 px
- Google Play phone: 1080 × 1920 px (or any 16:9 / 9:16)
- No device frame: For feature-focused screenshots
AI mockups vs manual mockup tools
Manual mockup tools (like Figma plugins, Placeit, or AppLaunchpad) give you templates where you position everything yourself. AI mockup generation is fundamentally different:
- Speed: 30 seconds vs 15-60 minutes of manual design
- Uniqueness: Every generation is unique — no two apps get the same design
- No design skills: The AI chooses colors, layouts, and typography
- Localization: Re-generate per language in seconds, no manual re-editing
- Consistency: All 5 frames share a visual language automatically
Create your mockups now
Free to start — 6 credits, no credit card. Upload your screens and get 5 store-ready mockups in 30 seconds.
Try Nuvex free →FAQ
What is an app store mockup generator?
An app store mockup generator is a tool that takes your raw app screenshots and places them inside professionally designed frames with custom backgrounds, headlines, and visual elements. The result looks like a polished App Store or Google Play listing screenshot, not a plain screen capture.
How is an AI mockup generator different from a template tool?
Template tools give you pre-made layouts where you manually swap in your screenshots and text. An AI mockup generator creates unique designs automatically — you upload your screens, describe your app, and the AI composes backgrounds, typography, and device frames specifically for your app.
Can I create iPhone and Android mockups?
Yes. Nuvex supports iPhone (all models from SE to 16 Pro Max), iPad, and Android device frames. You can generate mockups at the exact pixel dimensions required by App Store Connect and Google Play Console.
Are the mockups store-ready?
Yes. The generated mockups are exported at the exact dimensions required by App Store Connect and Google Play Console. You can upload them directly without additional editing.
Related guides
- AI screenshot generator — full overview of AI-generated screenshots
- How to make App Store screenshots — step-by-step guide
- App Store screenshot sizes — all device dimensions
- Best screenshot generators — ranked — tool comparison
- ASO checklist — 25-point audit before every release