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Drag a screen to fold. Click the top or bottom rail to clip it on or off. Each attachment folds with the phone. In top view, Save angle traces the current angle on the paper. Switching to front view clears the paper.
Two folding rails. Top and bottom.
Use the fold angle slider or focus the phone and press the arrow keys. The displayed angle is the simulated inner hinge angle, from closed at 0 degrees to flat at 180 degrees.
COMING SOON
damgood
$29.00 USD
Measuring angles with the iPhone Duo made simple and scratch free
iPhone Duo compatibility
damgood is fully compatible with iPhone Duo. The two rails clip across its top and bottom edges, with soft lining against the phone. Each rail folds at the center with the Duo, forming two straight measuring arms. The left and right sides stay open, and both screens remain visible.
What’s included
One pair of damgood clip-on ruler rails, with soft lining between the metal and your phone. Phone and PROtract app are sold separately.