polar alignment apps

Did a quick search for polar aligning apps for the iOS. Found a couple... Both cost about $2.

• PolarAlign by George Varros (current version 4.0)
• Polar Scope by iOptron (current version 2.01)

The app by Varros looks very good. Can detect one's current location or allow manual entry. Supports an inverted (rotated) view for a polar scope. Works in the northern and southern hemispheres. Display can be zoomed. Entire display in red and orange colours. Updated for years from 2010 to 2020. The most interesting feature is the augment reality with a camera.

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Found Polar Finder for Android by TechHead.