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User Reviews


Excellent! - (5 Stars) - UK User Review

by Ascib - Version 1.0 - 24 June 2011

The illusion works really well and my kids love it. Well worth a look.


Good fun illusion - (5 Stars) - UK User Review

by alemaster - Version 1.0 - 16 June 2011

Interesting illusion giving an insight into the way our brains visualise and recognise facial features. You can get some fun weird pictures of yourself through the iPhone camera, or start with a photo of someone else for some amusing results.


Scary - (1 Star) - Singapore User Review

by liyanaplaygurl - Version 1.0 - 16 June 2011

Looks scary after you rotate it...

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Like illusions? Then you'll LOVE Evil Twin!


Create your own custom illusion that looks normal when upside down, but decidedly odd when the right way up.

Save it to your Photo Album to use for Contacts or avatars, or share with friends on Twitter, email or Facebook!


Now for 'the science bit': this is known as the Thatcher Effect. Find out more on Wikipedia



Evil Twin