How to Generate App Store Screenshots with AI (No Designer Needed)

Arise · 2026-03-11 · 5 min read

Screenshots Are Your App's Ad — And Most Are Terrible

Studies show 80% of users decide to download based on screenshots alone — before reading your description, before checking reviews.

Yet the typical indie developer ships blurry Simulator screenshots with a white background and zero context. Users have no idea what the app does or why they should care.

The App Store Screenshots agent fixes this. Input your app name, description, and brand color — it outputs conversion-optimized screenshots ready to upload directly to App Store Connect or Google Play Console.

What the Agent Generates

• 5–10 screenshots in all required device sizes (iPhone 6.9", 6.5", 5.5", iPad, Android)
• Feature callout text overlays — each screenshot highlights one key benefit
• On-brand gradient or scene backgrounds
• Clean device frame mockups (phone and tablet bezels)
• Localized versions for international markets
• Google Play and Mac App Store formats

Installation

curl -fsSL https://api.agentplace.sh/cli/install | bash
agentplace install app-store-screenshots

Basic Usage

agentplace run app-store-screenshots \
  --name "TaskFlow" \
  --description "A minimalist task manager for developers" \
  --color "#6366f1" \
  --platform ios \
  --output ./screenshots

Advanced Configuration

{
  "app": {
    "name": "TaskFlow",
    "description": "Minimalist task manager for developers",
    "category": "Productivity",
    "primaryColor": "#6366f1",
    "accentColor": "#f59e0b"
  },
  "screenshots": [
    { "feature": "Capture tasks instantly", "screen": "home" },
    { "feature": "Focus mode — zero distractions", "screen": "focus" },
    { "feature": "GitHub sync built-in", "screen": "integrations" },
    { "feature": "Daily review in 60 seconds", "screen": "review" },
    { "feature": "Works offline, always", "screen": "offline" }
  ],
  "style": "gradient",
  "devices": ["iphone-15-pro", "ipad-pro-12"],
  "output": "./screenshots"
}

agentplace run app-store-screenshots --config app-config.json

Generating for Multiple Platforms

# iOS + Android in one run
agentplace run app-store-screenshots \
  --name "MyApp" \
  --description "Track your habits daily" \
  --color "#22c55e" \
  --platform ios,android \
  --output ./all-screenshots

Output Structure

screenshots/
├── ios/
│   ├── iphone-69/     # 1290×2796px (iPhone 15 Pro Max)
│   ├── iphone-65/     # 1242×2688px (older required size)
│   └── ipad-129/      # 2048×2732px
├── android/
│   ├── phone/         # 1080×1920px
│   └── tablet-10/     # 1600×2560px
└── preview.png        # composite overview

Supported Sizes and Formats

Before vs After

Before (typical indie dev):

• Raw Simulator screenshot, white background
• No text, no context — user has no idea what the app does
• All screenshots look identical, wasted slots

After (App Store Screenshots agent):

• Device framed on brand-colored gradient
• Screenshot 1: "Capture tasks in 2 seconds" — establishes core value
• Screenshots 2-5: each highlight a different key feature
• Consistent visual identity builds trust

Conversion impact: typically 2–5x more downloads for the same traffic.

Tips for Best Results

• Describe features, not screens — write "instant task capture" not "home screen view"
• Lead with your single biggest benefit on screenshot 1 — that is the thumbnail users see first
• Use your exact brand color — even slight variations look unprofessional at thumbnail size
• Generate localized sets for your top 3 markets — ASO impact is significant for international search
• Test both light and dark variants — some markets strongly prefer one or the other

Conclusion

Professional App Store screenshots used to require a designer, Figma, and 2-3 days of iteration. Now it takes 5 minutes and a few credits. Higher conversion rate, zero design work.

Get App Store Screenshots on AgentPlace