Note that the 3D Touch feature does not include a Quick Actions menu from the app’s icon, just inside the app. The feature only works with your finger or a passive stylus, but the app works the same way as before with a host of pressure-sensitive Bluetooth styluses. Plus, its companion Apple Watch App also features shortcuts on your wrist. Make sure that you disable stylus support on the Mac or the phone app will not respond to pressure from your fingers.
Astropad for iPhone is now available free of charge (though the iPad app still costs $39.99), and is compatible with iOS 8 and higher, and Macs running OS X 10.9 Mavericks or later. The Mac app is also free.
Why this matters: Astropad for iPad offers advanced tablet pen-on-screen experience completely free, letting you apply edits to photos or draw freehand in any app you have on your Mac. An inexpensive stylus paired with 3D Touch can give you 256 levels of pressure sensitivity and challenge expensive hardware-software products like the Wacom Cintiq by offering a unified workspace and full support of iOS gestures.
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