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RocketSim - Build Apps Faster @rocketsim.app · 6h

Simulator captures shouldn't send you to Finder every time. RocketSim stacks screenshots and recordings in floating windows on the side, ready to copy, save, or drag where you need them.

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RocketSim - Build Apps Faster @rocketsim.app · 28/09/2026

Re-running the same build on a physical iPhone often means digging through Xcode again. RocketSim Recent Builds lets you relaunch, terminate, uninstall, or start with a supported locale. For real devices, it only shows the actions that apply.

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RocketSim - Build Apps Faster @rocketsim.app · 27/09/2026

Testing permission dialogs on the Simulator often turns into reinstall cycles. In RocketSim, you can grant, revoke, or reset camera, location, contacts, photos, and more without reinstalling your app. Which permission flow do you retest most?

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RocketSim - Build Apps Faster @rocketsim.app · 26/09/2026

Testing Dynamic Type from Simulator Settings breaks flow. By the time you reach the right accessibility setting, the screen you wanted to inspect is often gone. RocketSim keeps Environment Overrides next to the Simulator: Dynamic Type, Inverted Colors, and more.

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RocketSim - Build Apps Faster @rocketsim.app · 24/09/2026

Testing location-aware flows on a real iPhone often ends with hardcoded coordinates. RocketSim now simulates GPS on connected iPhones and iPads, reuses saved locations, and resets back to the device’s real location. With Xcode 27, the time zone follows too.

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RocketSim - Build Apps Faster @rocketsim.app · 22/09/2026

Deep-link testing on a real iPhone shouldn't mean typing URLs with your thumbs. RocketSim lets you send custom URL schemes and universal links to a connected device, then repeat the same navigation test from your Mac.

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RocketSim - Build Apps Faster @rocketsim.app · 20/09/2026

Team build times get messy when every Xcode project is judged by memory. RocketSim shows tracked projects in one Team Build Insights overview, so you can pick the project that deserves a deeper build performance pass.

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RocketSim - Build Apps Faster @rocketsim.app · 17/09/2026

Simulator recordings are easier to follow when taps are visible. RocketSim can show touch indicators in screenshots and videos, or keep the pointer visible during the whole demo with Touch Attention Mode. No more guessing where the tap happened.

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RocketSim - Build Apps Faster @rocketsim.app · 06/09/2026

Testing offline states does not have to take down your Mac's Wi-Fi. In RocketSim, you can switch the Simulator between 3G, Edge, 100% loss, or Airplane Mode from the Networking tab. Your browser stays online for docs.

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RocketSim - Build Apps Faster @rocketsim.app · 30/08/2026

Simulator captures get messy fast when every screenshot lands in Finder. RocketSim keeps screenshots and recordings as stackable floating windows next to the Simulator, so the capture you need stays in sight while you continue testing.

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RocketSim - Build Apps Faster @rocketsim.app · 26/08/2026

Pixel alignment on the iOS Simulator is hard to judge by eye. RocketSim’s grid overlay puts spacing lines over the screen, with adjustable color and spacing for the UI you’re checking.

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RocketSim - Build Apps Faster @rocketsim.app · 25/08/2026

Retesting iOS permission dialogs shouldn't require reinstalling your app. I built Privacy Permissions to put the Simulator back to “not determined”, so you can verify camera, location, contacts, and photo access from a clean state.

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RocketSim - Build Apps Faster @rocketsim.app · 23/08/2026

Real-device captures belong next to the USB iPhone preview. The hard part was keeping RocketSim's capture controls in sync there: screenshots, GIFs, and video with audio, without treating the device as a separate tool.

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RocketSim - Build Apps Faster @rocketsim.app · 22/08/2026

Quick tip: trigger deep links and Universal Links from the Simulator side window. RocketSim keeps URL schemes and Universal Links next to the Simulator, so you can reopen the exact app state while debugging navigation.

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RocketSim - Build Apps Faster @rocketsim.app · 19/08/2026

Simulator recordings at 30 FPS can make smooth scrolling look worse than it is. In RocketSim you can enable 120 FPS captures with HEVC for app demos, animations, and transitions that need to look closer to the real interaction.

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RocketSim - Build Apps Faster @rocketsim.app · 18/08/2026

Simulator recordings get confusing when viewers can't see your taps. In RocketSim, you can add touch indicators to screenshots and recordings, or use Touch Attention Mode to keep the pointer visible during the whole demo.

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RocketSim - Build Apps Faster @rocketsim.app · 17/08/2026

VoiceOver reading order is hard to see while iterating. RocketSim overlays numbered accessibility elements on the Simulator, so you can spot wrong order before grabbing a device. Accessibility bugs often hide in plain sight.

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RocketSim - Build Apps Faster @rocketsim.app · 16/08/2026

Xcode build regressions are hard to spot from memory. I built Build Insights because I wanted history: incremental builds over months, split by Xcode version, with P75/P95 stats instead of a single gut feeling.

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RocketSim - Build Apps Faster @rocketsim.app · 15/08/2026

Network debugging with ChatGPT is only useful if the prompt is safe to paste. I built RocketSim's Network AI Prompts around that constraint: you can export a request and response with private values redacted.

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RocketSim - Build Apps Faster @rocketsim.app · 14/08/2026

App Store screenshots and demo videos need more than a raw Simulator frame. RocketSim now lets you create captures with device bezels, touch indicators, and audio. Much closer to what I want to ship or share.

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RocketSim - Build Apps Faster @rocketsim.app · 09/08/2026

Pixel-aligning UI in the iOS Simulator is still oddly manual. RocketSim's rulers show on-device pixel coordinates so you can verify where elements actually land. Do you measure layout by eye, screenshots, or tooling?

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Reposted by RocketSim - Build Apps Faster

Antoine v.d. SwiftLee  @avanderlee.com · 07/08/2026

Xcode Instruments intimidates, finding where to investigate is hard. I bet many iOS devs don't use it because of that. It's why I’m building RocketTrace: ranked findings, measured impact, and supporting evidence. I’m opening early beta access in small batches. Link in the first reply 🚀

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RocketSim - Build Apps Faster @rocketsim.app · 30/07/2026

Claude, Codex, Cursor, they all have their own way of navigating the Simulator. Yet, we still believe in a custom CLI + Agent Skill served through RocketSim. Here's why: www.rocketsim.app/blog/testing...

rocketsim.app

How We Test AI Agents for the iOS Simulator - RocketSim

See how RocketSim benchmarks its CLI and Agent Skill with repeatable iOS Simulator scenarios to improve reliability, speed, and context efficiency.

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RocketSim - Build Apps Faster @rocketsim.app · 30/07/2026

Xcode 27 Device Hub support, increased CLI + Agent Skill performance to control the Simulator, location simulation & deeplink testing on physical devices, and much much more. It's been busy weeks, and we want to tell you all about it: www.rocketsim.app/blog/rockets...

rocketsim.app

RocketSim 16: Physical Devices and AI Agents - RocketSim

RocketSim 16 expands iOS testing with physical device App Actions, AI agent workflows, Xcode 27 Device Hub support, and better recordings.

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RocketSim - Build Apps Faster @rocketsim.app · 27/07/2026

Testing bad networking on the Simulator shouldn't take your Mac offline. RocketSim lets you apply 3G, Edge, or 100% packet loss to the Simulator app only, so Stack Overflow and ChatGPT stay reachable while you debug.

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RocketSim - Build Apps Faster @rocketsim.app · 26/07/2026

Testing location and time-zone logic on a physical iPhone is still a pain. RocketSim lets you simulate a location from your Mac, so you can verify region-specific behavior without walking around or changing device settings.

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RocketSim - Build Apps Faster @rocketsim.app · 23/07/2026

Repeatable iOS tests should not start by hunting for the right build. RocketSim now keeps recent builds next to the active Simulator or device, with quick actions to relaunch, uninstall, open deep links, and reset permissions.

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RocketSim - Build Apps Faster @rocketsim.app · 22/07/2026

Team build insights work better when the dashboard starts with Xcode projects. I designed RocketSim’s overview around the team question I hear most: which project is hurting our build times? That first answer decides where the investigation starts.

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RocketSim - Build Apps Faster @rocketsim.app · 20/07/2026

The Recent Builds feature in RocketSim now works on physical iPhones and iPads. After running from Xcode, you can launch, relaunch, terminate, uninstall, or relaunch with a supported locale. Simulator-only actions stay hidden.

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RocketSim - Build Apps Faster @rocketsim.app · 19/07/2026

Testing deep links on real hardware is still clunky. Typing custom URL schemes or universal links on an iPhone keyboard breaks the debugging flow. RocketSim lets you send them to a connected device from your Mac.

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RocketSim - Build Apps Faster @rocketsim.app · 17/07/2026

Yes, this is my physical iPhone streaming Yes, you can now simulate locations on a physical device Yes, universal links and deeplinks testing has never been easier! Just connect your device via USB and enjoy RocketSim 🚀

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RocketSim - Build Apps Faster @rocketsim.app · 16/07/2026

Simulator screenshots pile up fast during UI reviews. RocketSim shows your captures as stackable floating windows next to the Simulator, so recent iterations stay visible while you compare changes.

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RocketSim - Build Apps Faster @rocketsim.app · 14/07/2026

Testing Dynamic Type in the Simulator usually means too many trips into Settings. RocketSim puts Bold Text, Reduce Motion, and Dynamic Type sizes in the side window, so you can switch states while your app stays in view.

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RocketSim - Build Apps Faster @rocketsim.app · 13/07/2026

Deep link testing shouldn't live in Notes. Save your URL schemes and Universal Links in RocketSim, then trigger them from the Simulator side window while debugging. Much better than keeping a random HTML file around.

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RocketSim - Build Apps Faster @rocketsim.app · 17/06/2026

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 🚀

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RocketSim - Build Apps Faster @rocketsim.app · 16/06/2026

Location simulation is an unmissable RocketSim feature for those with GPS apps. An alternative? Driving the car while running the Simulator 🙈

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RocketSim - Build Apps Faster @rocketsim.app · 14/06/2026

Almost every app performs some kind of network request. Inspecting outgoing requests or simulating poor network conditions is a crucial element of app development.

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RocketSim - Build Apps Faster @rocketsim.app · 13/06/2026

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

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RocketSim - Build Apps Faster @rocketsim.app · 10/06/2026

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

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RocketSim - Build Apps Faster @rocketsim.app · 09/06/2026

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 🚀

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RocketSim - Build Apps Faster @rocketsim.app · 06/06/2026

Are you still using the default Xcode Simulator capture options? You're missing out on: 📲 Device bezels 👆 Touches 🔊 Audio recording

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RocketSim - Build Apps Faster @rocketsim.app · 24/05/2026

With over 30+ features for Xcode's Simulator, it's hard to pick a favorite. What's your most-used RocketSim feature?

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RocketSim - Build Apps Faster @rocketsim.app · 16/05/2026

Test your app's support for Push Notifications 📡 No server needed 📩 Save for easy re-testing 🔗 Ideal for deeplink testing

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RocketSim - Build Apps Faster @rocketsim.app · 11/05/2026

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! 🚀

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RocketSim - Build Apps Faster @rocketsim.app · 10/05/2026

How do you test your app for location changes? 🚗 Configure car routes or single locations 💨 Use different speeds 💪 Save locations for easy re-testing

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RocketSim - Build Apps Faster @rocketsim.app · 08/05/2026

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 ✨

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RocketSim - Build Apps Faster @rocketsim.app · 04/05/2026

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

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RocketSim - Build Apps Faster @rocketsim.app · 01/05/2026

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!

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RocketSim - Build Apps Faster @rocketsim.app · 27/04/2026

Monitor network requests without installing certificates or using a proxy. Inspect or copy: 🔍 JSON responses 🤯 Headers ⚠️ Failure reasons

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RocketSim - Build Apps Faster @rocketsim.app · 26/04/2026

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! 🚀

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