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Create App Store and Google Play screenshots with exact platform specs. Covers iOS/Android dimensions, gallery ordering, device mockups, captions, preview videos, localization, and A/B testing. Use when: app store screenshots, ASO, app preview, store listing, app mockup.
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| name | app-store-screenshots |
| description | Create App Store and Google Play screenshots with exact platform specs. Covers iOS/Android dimensions, gallery ordering, device mockups, captions, preview videos, localization, and A/B testing. Use when: app store screenshots, ASO, app preview, store listing, app mockup. |
| license | MIT |
| metadata | {"version":"1.0.0","category":"marketing","tags":["app-store","google-play","screenshots","ASO","mockups","marketing","mobile"]} |
Create app store screenshots and preview videos via inference.sh CLI.
Requires inference.sh CLI (
infsh). Get installation instructions:npx skills add inference-sh/skills@agent-tools
infsh login
# Generate a device mockup scene
infsh app run falai/flux-dev-lora --input '{
"prompt": "iPhone 15 Pro showing a clean modern app interface with analytics dashboard, floating at slight angle, soft gradient background, professional product photography, subtle shadow, marketing mockup style",
"width": 1024,
"height": 1536
}'
| Device | Dimensions (px) | Required |
|---|---|---|
| iPhone 6.7" (15 Pro Max) | 1290 x 2796 | Required |
| iPhone 6.5" (11 Pro Max) | 1284 x 2778 | Required |
| iPhone 5.5" (8 Plus) | 1242 x 2208 | Optional |
| iPad Pro 12.9" (6th gen) | 2048 x 2732 | If iPad app |
| iPad Pro 11" | 1668 x 2388 | If iPad app |
| Spec | Value |
|---|---|
| Min dimensions | 320 px (any side) |
| Max dimensions | 3840 px (any side) |
| Aspect ratio | 16:9 or 9:16 |
| Max screenshots | 8 per device type |
| Formats | PNG or JPEG (24-bit, no alpha) |
80% of App Store impressions show only the first 3 screenshots (before the user scrolls). These three must:
| Position | Content | Purpose |
|---|---|---|
| 1 | Hero -- core value, best feature | Stop the scroll, communicate what the app does |
| 2 | Key differentiator | What makes you unique vs competitors |
| 3 | Most popular feature | The thing users love most |
| 4 | Social proof or outcome | Ratings, results, testimonials |
| 5-8 | Additional features | Supporting features, settings, integrations |
| 9-10 | Edge cases | Specialized features for niche users |
The standard: device mockup showing the app, caption text above/below.
+----------------------------+
| "Track Your Habits | <- Caption (benefit-focused)
| Effortlessly" |
| |
| +--------------------+ |
| | | |
| | App Screen | | <- Actual app UI in device frame
| | Content | |
| | | |
| | | |
| +--------------------+ |
| |
+----------------------------+
The app UI fills the entire screenshot. Works for immersive apps.
The device shown in a real-world context (person holding phone, on desk, etc.).
UI screenshot with arrows/circles pointing to specific features.
Bad (feature-focused):
"Push Notification System"
"Calendar View with Filters"
"Data Export Functionality"
Good (benefit-focused):
"Never Miss a Deadline Again"
"See Your Week at a Glance"
"Share Reports in One Tap"
# Clean device mockup with hero feature
infsh app run falai/flux-dev-lora --input '{
"prompt": "modern iPhone showing a beautiful fitness tracking app with activity rings and workout summary, device floating at slight angle against soft purple gradient background, professional product shot, clean minimal composition, subtle reflection",
"width": 1024,
"height": 1536
}'
# Feature callout style
infsh app run bytedance/seedream-4-5 --input '{
"prompt": "app store screenshot style, iPhone showing a messaging app with AI writing suggestions highlighted, clean white background, subtle UI callout arrows, professional marketing asset, modern design",
"size": "2K"
}'
# Device in real-world setting
infsh app run falai/flux-dev-lora --input '{
"prompt": "person holding iPhone showing a cooking recipe app, kitchen background with ingredients, warm natural lighting, over-the-shoulder perspective, lifestyle photography, authentic feeling",
"width": 1024,
"height": 1536
}'
# Split comparison
infsh app run infsh/stitch-images --input '{
"images": ["before-screenshot.png", "after-screenshot.png"],
"direction": "horizontal"
}'
| Spec | Value |
|---|---|
| Duration | 15-30 seconds |
| Orientation | Portrait or landscape (match app) |
| Audio | Optional (loops silently in store) |
| Format | H.264, .mov or .mp4 |
| Spec | Value |
|---|---|
| Source | YouTube URL |
| Duration | 30s-2min recommended |
| Orientation | Landscape preferred |
| Segment | Duration | Content |
|---|---|---|
| Hook | 0-3s | Show the core outcome/wow moment |
| Feature 1 | 3-10s | Demonstrate top feature in action |
| Feature 2 | 10-18s | Second key feature |
| Feature 3 | 18-25s | Third feature or social proof |
| CTA | 25-30s | End screen with app icon |
# Generate preview video scenes
infsh app run google/veo-3-1-fast --input '{
"prompt": "smooth screen recording style, finger tapping on a modern mobile app interface, swiping between screens showing charts and data visualizations, clean UI transitions, professional app demo"
}'
Each language gets its own set of screenshots. Priorities:
| Market | Localization Level |
|---|---|
| Primary markets | Full: new screenshots + translated captions |
| Secondary markets | Translated captions, same screenshots |
| Other | English defaults |
Key localization markets: English, Japanese, Korean, Chinese (Simplified), German, French, Spanish, Portuguese (Brazilian)
Google Play Console supports store listing experiments:
| Mistake | Problem | Fix |
|---|---|---|
| Settings screen as screenshot | Nobody cares about settings | Show core value, not infrastructure |
| Onboarding flow screenshots | Shows friction, not value | Show the app in-use state |
| Too much text | Unreadable in store | Max 2 lines, 30pt+ font |
| Wrong dimensions | Rejected by store | Use exact platform specs |
| All screenshots look the same | No reason to scroll | Vary composition and content |
| Feature-focused captions | Doesn't communicate benefit | "Never Miss a Deadline" > "Push Notifications" |
| Outdated UI | Looks abandoned | Update screenshots with each major release |
| No hero screenshot | Weak first impression | Position 1 = your best shot |
AI-generated images (via inference.sh) produce marketing mockups, not real app screenshots. For actual screenshots of your running app, use maestro-mobile-testing or playwright-recording to capture real screens, then use this skill for framing, captions, and store optimization.
App Store Screenshot Set Generated:
- hero-iphone15pro.png (1290x2796) — "Track Your Habits Effortlessly"
- feature-calendar.png (1290x2796) — "See Your Week at a Glance"
- social-proof.png (1290x2796) — "Join 50,000+ Users"
- ipad-pro.png (2048x2732) — "Beautiful on Every Screen"
- feature-graphic.png (1024x500) — Google Play feature graphic
npx skills add inference-sh/skills@ai-image-generation
npx skills add inference-sh/skills@ai-video-generation
npx skills add inference-sh/skills@image-upscaling
npx skills add inference-sh/skills@prompt-engineering
Browse all apps: infsh app list