RocketSim for Xcode Simulator 4+

Build apps faster


    • 4.5 • 36 Ratings
    • Free
    • Offers In-App Purchases



Quickly delete Derived Data from the status bar menu, show rulers and grids on top of the Simulator

Upgrade your Xcode Simulator with recordings containing touches, add bezels around screenshots & videos, and compare designs on top of the Simulator.

Grids & Rulers help you to create pixel-perfect design implementations
* Use horizontal and vertical rulers
* Measure distance between elements in on-device pixels
* Configure grid size and color

Quick actions for your recent builds help you increase productivity
* Delete Derived Data with ease, globally or per app, to prevent rebuilding all your Xcode projects.
* Open common directories like your app's documents folder.
* Read and write user defaults
* Grant, revoke, or reset permissions like photo and location access, allowing you to quickly test related implementations

Compare Designs for pixel-perfect design implementations
* Create pixel-perfect implementations of your app’s design
* Drag, Paste, or Select images for comparison
* Use the overlay mode to compare your app’s implementation to its design
* The slider allows you to slide between your app’s implementation and its design
* Any image source, whether it’s Sketch, Figma, or Zeplin.

Create screenshots
* Device Bezels create that professional screen capture you need
* Adjust the background color to match your styling

Create professional recordings to share progress
* A popup next to the active Simulator allows to start a recording easily
* Enable touches to explain better how your app responds to user interaction
* Device Bezels create that professional impression you need
* Export-ready for App Store Connect. Creating App Previews has never been easier
* Landscape orientation is correctly applied in the exported video
* A floating thumbnail with the resulting recording allows to drag into any destination easily
* Select MP4 or GIF to match your needs
* Trim videos for perfect lengths
* Control the quality of exports for perfect performance

Launch and manage deeplinks (Universal Links)
* Launch deeplinks to test routing in your apps
* Easily launch deeplinks from your clipboard
* Manage and share deeplink groups with your colleagues

Completely customizable to fit your needs
* All actions are available through the status bar menu as well. Configure to hide the floating windows if you feel like they're in your way
* Configure shortcuts to perform actions even quicker

Each feature is developed with a focus on productivity to keep you in your flow. Configure the available shortcuts to improve this even more.

Xcode® is a trademark of Apple Inc., registered in the U.S. and other countries.
Terms of use:

What’s New

Version 8.6.0

* Added support for the latest announced devices and new Simulators
* Fixed an issue causing RocketSim to be stuck at launch

Ratings and Reviews

4.5 out of 5
36 Ratings

36 Ratings

swapp9 ,

Must have tool

This is a great tool for any developer looking to get a little bit more out of the simulator app that accompanies Xcode. Personally, I love being able to record a gif on command, rather than right-click>save as gif on the simulator. I also love being able to take a screenshot(with bezels!!!) then overlay that screenshot to compare small changes!

WokaWokaWoka ,

Screen recording is good

Got this for the screen recording feature. Had some initial trouble wrangling the output because the UI that appears when a video is saved is has black text on a black background, making it illegibile. I first opened the raw capture file by mistake (because you can accidentally drag it to a browser window before you save it) and was disappointed with the quality, but on my next try, the video produced by Saving the recording was much higher. Would love to see some more polish on this app, and maybe the ability to adjust the export compression level, including exporting with loss-less compression.

Developer Response ,

The compression options should not be available in version 5.0 from the preferences. Let us know if you still need more flexibility:

Pumasalad ,

Still loving RocketSim!

This app is still my go-to for making videos of my own apps during development. it's so simple to use and it stays out of the way when I don't need it. I wish more apps were this attentive!

App Privacy

The developer, SwiftLee, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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