✦ Now with Lifetime Access
Your iOS Simulator,
supercharged.
A floating macOS panel that attaches to your iOS Simulator — screenshots, video, push notifications, deep links, and location testing in one place.
A floating macOS panel that attaches to your iOS Simulator — screenshots, video, push notifications, deep links, and location testing in one place.
CosmoKit sits next to your Simulator so tools are always one click away — no alt-tab, no extra windows.
One-click screenshots with device frames, realistic bezels, shadows, and configurable aspect ratios. Watermark-free with Pro.
Record simulator sessions as MP4 or animated GIF. Add audio from your mic and animated touch indicators with Pro.
Fire push notifications to any booted simulator. Build templates, send custom JSON payloads, and debug notification handling instantly.
Trigger URL schemes and universal links in your app. Save your most-used links for one-tap access during every test session.
Set any GPS coordinate on your simulator instantly. Search addresses with geocoding and save favourite locations.
Control multiple simulators at once and capture screenshots from all of them simultaneously.
Switch your simulator between Light and Dark mode instantly — no need to dig into Settings.
Set the perfect 9:41 time, full battery and signal with one tap — ideal for clean App Store screenshots.
Reset or grant all app permissions in one click. Speed up testing flows that require specific permission states.
Trigger biometric authentication success or failure on demand to test your app's Face ID flows.
Erase all keychain items on the simulator to reproduce clean-install scenarios without reinstalling the app.
Generate perfectly-sized App Store screenshots for every device size. Choose a canvas, pick a background color, and export in seconds.
From attaching to the Simulator to capturing a framed screenshot — in seconds.
CosmoKit attaches seamlessly to your open Simulator window. It follows the simulator wherever it goes — so your tools are always at your fingertips without breaking your flow.
CosmoKit floats alongside your Simulator, always within reach.
Start with a free trial. Upgrade when you're ready — monthly, yearly, or a one-time lifetime purchase.
From $2.99/month · 3-day free trial
Fresh updates from the last release.
Buy CosmoKit Pro once and keep it forever — no subscription required.
New annual subscription option at a discounted rate.
CosmoKit now shows a summary of new features every time you update.
Fixed unresponsive tab buttons, improved error messages from simctl, and refined window attachment behavior.