RocketSim for Xcode Simulator 4+

Join thousands of iOS developers who build, test, and debug apps up to 2x faster with RocketSim.
Supercharge your Xcode Simulator with 30+ powerful tools designed to boost productivity, streamline testing, and speed up your workflow.

Key Highlights
• Boost productivity with tools that save hours every week
• Debug faster with network traffic inspection, user defaults editing, and build insights
• Perfect your designs with grids, rulers, and pixel-precise comparison tools
• Test real-world scenarios with location simulation, push notifications, and network speed control
• Create professional recordings and screenshots with device bezels, touches, and audio

Feature Breakdown

Network Speed Control
• Simulate slow networks like 3G or full loss
• Enable Airplane Mode to disable networking just for your app
• Keep your Mac’s connectivity fast and unaffected

Inspect Network Traffic
• Monitor incoming and outgoing requests
• Explore JSON responses, headers, and request details
• Copy requests as cURL commands
• Investigate performance with request metrics

Simulator Camera
• Use your Mac’s camera directly in the Simulator
• Test camera features without switching to a real device

Build Insights
• Track build count and duration over time
• Measure improvements per Xcode version

User Defaults Editor
• View and edit values in real time
• Works with both standard and group defaults

Location Simulation
• Simulate routes or single GPS points
• Change time zones based on location
• Test navigation and travel scenarios

Design Tools
• Grids and rulers for pixel-perfect layout checks
• Measure distances in real device pixels
• Slow animations to fine-tune UI transitions

Compare Designs
• Overlay Figma, Sketch, or Zeplin exports
• Use slider mode to compare design vs. implementation
• Ensure pixel-perfect design fidelity

Magnify for Precision
• Zoom to the pixel level for flawless UI verification

Quick Actions for Builds
• Delete Derived Data globally or per app
• Open common directories instantly
• Manage app permissions like photos and location access

Environment Overrides
• Toggle accessibility settings (Bold Text, Dark Mode, etc.)
• Configure Dynamic Type sizes directly in the Simulator

Deeplinks and Push Notifications
• Test universal links and push notifications instantly
• Auto-detect actions for recent builds
• Launch links from your clipboard
• Share Quick Action groups with your team

Screenshots and Recordings
• Add device bezels for professional results
• Record with touches, audio, and custom backgrounds
• Export-ready for App Store Connect previews
• Trim videos or convert recordings to GIFs

Full Customization
• Access all tools from the status bar
• Configure shortcuts for even faster actions
• Hide floating windows to match your workflow

Trusted by Developers Everywhere

RocketSim is used daily by thousands of developers and over 200 teams — including developers at companies like Meta, Runkeeper, and MacWhisper — to ship apps faster and with higher quality. It fits seamlessly into your existing workflow — whether you’re distributing builds with TestFlight, uploading to App Store Connect, learning in the Apple Developer app, or building with Xcode.

Xcode® is a trademark of Apple Inc., registered in the U.S. and other countries.
Terms of use: https://www.rocketsim.app/terms/
¹ Based on RocketSim Developer Research of 2024