App Store size guide

Choose the right App Store screenshot canvas before designing

Avoid rebuilding a finished listing because the output dimensions were wrong. StoreHalo exposes the selected canvas size and applies responsive composition rules before export.

Visible output dimensions

Confirm the target canvas in the editor instead of relying on an old spreadsheet or manually resized artwork.

Format-aware composition

Text widths, safe zones and device scale adapt when the selected output aspect ratio changes.

Validation before download

Preflight reports missing images, layout overflow and common composition problems before files are generated.

What you can create

  • iPhone and iPad presets
  • Portrait and landscape output
  • Preflight checks before ZIP export