RocketSim - Build Apps Faster

Simulate slow network conditions like 3G, Edge, or 100% Loss

✈️ Simulator Airplane Mode
✨ No custom certificates needed
🤘 Your Mac's connectivity remains fast

How do you test your app for location changes?

🚗 Configure car routes or single locations
💨 Use different speeds
💪 Save locations for easy re-testing

Always aim for pixel-perfect designs.

✨ Use our overlay with a slider to indicate differences quickly

Do you know whether your Xcode project's build time became faster or slower this year?

If you've used RocketSim's build insights, you would know!

Making your app accessible is a must.

Use our accessibility side panel to verify implementations on the fly 🚀

January 9th 2007, 09:41

A historical moment in time for Apple Developers.

Did you know all iPhone screenshots are set to 09:41?

You can now apply the same using the status bar overrides ✨

While Xcode offers similar environment toggles, being able to switch them right next to the Simulator is a game-changer to stay in your flow 🚀

Location simulation is an unmissable RocketSim feature for those with GPS apps.

An alternative? Driving the car while running the Simulator 🙈

Almost every app performs some kind of network request.

Inspecting outgoing requests or simulating poor network conditions is a crucial element of app development.

You're done implementing a design, but does it match pixel-perfectly?

RocketSim's design tools are a must if you're UI focused ✨

RocketSim's App Preview Optimized mode converts your images & videos into a format directly accepted by App Store Connect.

Your quickest way to updated App Store assets 🚀

Are you still using the default Xcode Simulator capture options?

You're missing out on:

📲 Device bezels
👆 Touches
🔊 Audio recording

With over 30+ features for Xcode's Simulator, it's hard to pick a favorite.

What's your most-used RocketSim feature?

Test your app's support for Push Notifications

📡 No server needed
📩 Save for easy re-testing
🔗 Ideal for deeplink testing

Our real-time User Defaults Editor lights up when a value changes.

It's a perfect replacement for in-app debug views, as it also allows real-time editing! 🚀

Rulers & distances for perfect alignment.

⇧ Hold Shift to show distances
📏 Horizontal & Vertical rulers
✨ Pixel-perfect designs

Have you ever had a request fail unexpectedly but you didn't capture its JSON response?

Using our Network Traffic Monitor, you can always look back on those requests. Game changer for development!

Monitor network requests without installing certificates or using a proxy.

Inspect or copy:
🔍 JSON responses
🤯 Headers
⚠️ Failure reasons

Test your app under any network condition!

🚫 No internet?
🐢 Slow connection?

Try our Network Speed Control in the Simulator—without disrupting your Mac's connectivity! 🚀

Simulate slow network conditions like 3G, Edge, or 100% Loss

✈️ Simulator Airplane Mode
✨ No custom certificates needed
🤘 Your Mac's connectivity remains fast

How do you test your app for location changes?

🚗 Configure car routes or single locations
💨 Use different speeds
💪 Save locations for easy re-testing

Always aim for pixel-perfect designs.

✨ Use our overlay with a slider to indicate differences quickly

Do you know whether your Xcode project's build time became faster or slower this year?

If you've used RocketSim's build insights, you would know!

Making your app accessible is a must.

Use our accessibility side panel to verify implementations on the fly 🚀

January 9th 2007, 09:41

A historical moment in time for Apple Developers.

Did you know all iPhone screenshots are set to 09:41?

You can now apply the same using the status bar overrides ✨

While Xcode offers similar environment toggles, being able to switch them right next to the Simulator is a game-changer to stay in your flow 🚀

Location simulation is an unmissable RocketSim feature for those with GPS apps.

An alternative? Driving the car while running the Simulator 🙈

Almost every app performs some kind of network request.

Inspecting outgoing requests or simulating poor network conditions is a crucial element of app development.

You're done implementing a design, but does it match pixel-perfectly?