Cases

Toggle dark mode, reduced motion, and more from your menu bar.

Test your apps and sites more thoroughly without digging through system settings.

One-time purchase. Requires macOS 15 or later.

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What’s in the menu

Every system setting you test with, one click away.

Dark mode: Switch the whole system’s appearance and see how your styles react.; Related: prefers-color-scheme
Reduce motion: Check that your animations calm down, and that nothing breaks when they do.; Learn more

Always show scroll bars: Surface the layout-shift and theming bugs that overlay scroll bars hide.; Related: scrollbar-gutter
Reduce transparency: Verify the solid fallbacks behind your transparent and translucent surfaces.; Related: prefers-reduced-transparency
Increase contrast: Preview borders and text the way high-contrast users see them.; Related: prefers-contrast

Emulation only fools one tab: DevTools changes what a single tab sees. Cases changes the actual OS setting, so browsers and native apps respond alike.
System Settings is several clicks deep: The real toggles are scattered multiple levels deep in System Settings. Cases puts them all one click away in your menu bar.

Free updates · Activate on up to 2 Macs

One-time purchase. Requires macOS 15 or later.

Why isn’t it on the Mac App Store?: Changing system settings isn’t allowed in the App Store sandbox, so Cases ships as a notarized direct download instead.
How many Macs can I use it on?: 2 Macs — deactivate one from the menu at any time to free up a slot.
Can I get a refund?: Yes — if something isn’t working or Cases isn’t valuable to you, email support and we’ll refund you.