Create platform-compliant app store screenshots and preview videos for iOS and Android.

• Generates screenshots at exact Apple App Store (iOS) and Google Play (Android) dimensions with device mockups, captions, and lifestyle contexts
• Covers critical gallery ordering strategy: first 3 screenshots drive 80% of impressions and must communicate core value, differentiation, and top features
• Includes preview video structure (15–30s for iOS, 30s–2min for Android) with hook, feature demonstrations, and call-to-action segments
• Provides caption best practices (benefit-focused, max 2 lines, 30pt+ font) and localization guidance for primary markets