The size of app store screenshots varies depending on the platform and device on which the app is being distributed. Here are the recommended screenshot sizes for some popular app stores:

• Apple App Store (iOS):
  • iPhone: 1242 x 2688 pixels
  • iPad: 2048 x 2732 pixels
  • Apple Watch: 312 x 390 pixels
  • Mac: 1200 x 627 pixels
• Google Play Store (Android):
  • Phone: 720 x 1280 pixels
  • Tablet: 1200 x 1920 pixels
  • Wear OS: 320 x 320 pixels
  • Google TV: 1920 x 1080 pixels
• Microsoft Store (Windows):
  • Phone: 1004 x 1746 pixels
  • Tablet: 1152 x 1920 pixels
  • PC: 1920 x 1080 pixels
• Amazon Appstore:
  • Phone: 1080 x 1920 pixels
  • Tablet: 1200 x 1920 pixels

It’s important to note that these are the recommended sizes for screenshots, and not all app stores strictly enforce these sizes. However, it’s generally a good idea to follow these guidelines to ensure that your app’s screenshots are clear and legible on different devices and platforms.