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Rocketsim

Rocketsim

Compare mockups with real builds side by side

Product Overview

Rocketsim is a mobile UI review tool that lets designers and developers compare design mockups side by side against real development builds. Upload your Figma or Sketch designs alongside screenshots from staging or production, and use annotation tools to flag discrepancies. It streamlines the design handoff process and ensures pixel-perfect implementation.

Best For

Best for design teams and developers who want to ensure pixel-perfect implementation of mobile UI designs.

Key Features

  • Side-by-side comparison of mockups and live builds
  • Annotation tools for marking visual discrepancies
  • Figma and Sketch design file import support
  • Team collaboration with shared review sessions
  • Version history for tracking design changes
  • Cross-platform preview on real mobile devices

Pros

  • +Catches visual bugs before they go live
  • +Simplifies designer-developer communication
  • +Free tier available for small teams

Cons

  • -Relatively new tool with a small user base
  • -Limited integrations beyond Figma and Sketch

/// SPECS

  • Pricing:
    ProFree
  • Platform:
    Web
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