RocketSim for Xcode Simulator for Mac

RocketSim for Xcode Simulator

RocketSim enhances the Xcode Simulator for iOS and iPadOS development: boost productivity and streamline your workflow with capture, networking, build insights, and quick actions beside the Simulator. Developers report building, testing, and verifying apps up to 2x faster per RocketSim Developer Research.

Key Highlights - Polish screenshots and App Store Connect preview videos: open captures in the editor from the floating thumbnail, then tune bezels, touches, backgrounds, metadata, trim, and GIF export with App Store Connect-friendly dimensions—ideal for Swift, SwiftUI, and UIKit demos - Debug networking without proxy certificates: throttle or drop traffic, Airplane Mode for your running app only, and inspect traffic via RocketSim Connect; use Copy Summary when you need a redacted line to paste into Slack or an agent prompt - Track local build time trends next to Xcode with Build Insights across versions - Exercise universal links, APNs payloads, GPS and time zones, environment overrides, and a VoiceOver overlay with keyboard navigation from the side window - Pro: Simulator framebuffer recording up to 120 fps for fluid motion

Feature Breakdown

Screenshots and Recordings - Start from the Captures tab in the side window; after capture, refine in the editor before export - Bezels, touch callouts, optional metadata, audio, trim, GIF conversion - Pro: 120 fps framebuffer recording when supported

Networking - Simulate slow or lossy networks without slowing your Mac - Per-app Airplane Mode in the Simulator only - Inspect requests and responses; metrics; cURL export; trace export; Copy Summary for redacted sharing - Speed control and monitor share a dedicated Networking area in the side window for quicker discovery

Accessibility - VoiceOver overlay with keyboard navigation for testing in the Simulator without juggling a device as often - Environment overrides from the side window: Bold Text, Dark Mode, Dynamic Type, and more—without opening Settings.app - Tinted Liquid Glass legibility live on iOS 26 simulators

Build Insights - Build count and duration trends in the main and side windows - Compare performance across Xcode versions your team runs

Quick Actions for Builds - Clear Derived Data globally or for the current app - Open common app folders without Finder archaeology - Grant, revoke, or reset permissions without reinstall churn

Compare Designs - Overlay Figma, Sketch, or Zeplin frames on live UI - Slider mode for pixel-level SwiftUI and UIKit checks

Design Tools and Magnify - Grids and rulers in on-screen points; slow animations for layout polish - Pixel zoom with color sampling as code

Deeplinks and Push Notifications - Fire universal links and push payloads with the debugger attached - Actions from recent builds; clipboard URL history; shareable Quick Action groups - Grid or list layout for long route or push lists

Location Simulation - Routes or single-pin GPS; time zones from a chosen place; Maps and travel flows

User Defaults Editor - Live-edit standard and App Group defaults—flags, debug toggles, plist-backed state

Simulator Camera - Mac camera in Simulator for AVFoundation, QR, and Vision-style demos

Full Customization - Menu bar access including Open GitHub Issues - Shortcuts and floating windows matched to your workflow

Trusted by Developers Everywhere

RocketSim is used daily by thousands of developers and 200+ teams—including teams at Meta, Runkeeper, and MacWhisper—to ship iOS apps with less friction. It fits TestFlight, App Store Connect, the Apple Developer app, and everyday Xcode use.

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

What's New

**New:** - Recent Builds now supports launching, terminating, relaunching, and uninstalling apps on physical devices connected over USB. - Deeplinks and universal links can now be tested directly in apps installed on physical devices connected over USB. - Location actions now work on physical devices connected over USB, including fixed coordinates, saved routes, and built-in scenarios. - Apps on physical devices connected over USB can now be relaunched with a selected locale.

**Fixed:** - Fixed RocketSim Connect's LLDB support for Xcode 27, restoring automatic network monitoring setup. - Fixed the onboarding window becoming extremely tall on macOS Tahoe, which could place its controls beyond the visible screen. (Thanks, B. Cerceo!) - Fixed the RocketSim app icon showing up in the Dock after a recording or screenshot thumbnail appeared, and staying visible after the thumbnail was dismissed. (Thanks, M. Townsend!) - Fixed screenshots and video captures using an oversized corner radius for iPad device bezels. (Reported by C. Chlach) - Fixed a crash when CoreSimulator temporarily returned incomplete Simulator runtime or device metadata. (Thanks, P. vd Hamer!) - Fixed captures appearing black when switching from a device bezel to the Simulator bezel in the post-capture editor. (Thanks, P. Friese!)