iPhone Duo apps / Diedro Angle Finder
Diedro Angle Finder
by Roberto Insua Brandariz
FreeUtilities
An angle finder that uses the hinge: open the Duo against a corner.
Get it free on the App StoreOn iPhone Duo


- Best in:
- Book
- Also works:
- Closed
- Open, landscape
- Seated
Open the Duo against a corner and read the angle between its halves, or rest one half on a base while the other rises against a slope. Nearly closed, it keeps measuring on the cover display, and shut, it shows the last reading.
Free, with an optional Pro upgrade. View on the App Store
More apps built for the book pose
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