Koskamo

Design App Store screenshot sets from raw images

Transforms plain simulator screenshots into a cohesive, high-converting App Store marketing set with consistent branding, clear data-driven headlines, and strategic layout to improve search visibility and conversion rates.

How it works

Changes data in your accountsDesign and content

The agent takes raw app screenshots uploaded by the user and applies Agent C's design principles to create a professional marketing asset. It ensures the strongest outcome opens the set, moves onboarding screens to the back, uses one claim per slide backed by real app data, and utilizes the app's native color palette. The agent verifies that UI elements are enlarged for readability at thumbnail size and that the final set feels like a unified product experience.

Prompt

Paste this into an agent that has the servers below connected. Adjust the names and dates to your own.

Prompt for Design App Store screenshot sets from raw images
Design an App Store screenshot set using these raw simulator screenshots. Ensure the strongest outcome opens the set, use one data-backed claim per slide, and maintain the app's native color palette. Make UI elements large enough to read at thumbnail size.

MCP servers it needs

Source

The vendor page this playbook is drawn from, and the passage that supports it.

Upload your app's screenshots and Claude designs the whole App Store set.
App Store screenshot examples: before and after — Agent C

Each playbook is drawn from the vendor page it cites and reviewed by Koskamo before it is published. Koskamo does not run these servers or your agent: check what each tool will do before you let it act on your accounts.