ThinkInvisible is a unique trivia-like game that uses optical illusions as its main hook. The game has been listed at $1 for over a year on the App Store, but you can now grab it for free. Rated 4+ stars from over 175 users.

Here’s what it’s all about:

Browse through 9 unique sets of pictures, pick one that looks promising and try to recognize it by the small parts we show you. Think of it as a spotlight: it’s showing you only the most important details, forcing your brain to uncover and complete the rest! By mixing up optical illusions with a puzzle game, we created something so genuine that you have to try out if you’re into unique things.

iOS Universal: ThinkInvisible – The Game: FREE (Reg. $1)

Duet Display for iOS/Mac went 50% off yesterday and you can still play Star Wars Pinball 5 on iOS for free (Reg. $5). The Howler iOS adventure-puzzler went free for first time in years (Reg. $1) and Link Twin dropped to just $1.

ThinkInvisible Features:

I bet you haven’t seen anything like this before: we turned the whole world into an optical illusion! ThinkInvisible is a unique trivia game where you can discover how you imagination works and what your brain is capable of.

Browse through 9 unique sets of pictures, pick one that looks promising and try to recognize it by the small parts we show you. Think of it as a spotlight: it’s showing you only the most important details, forcing your brain to uncover and complete the rest!

By mixing up optical illusions with a puzzle game, we created something so genuine that you have to try out if you’re into unique things.

You’ll be rewarded with points and a little surprise (it’s fun – we promise) – and of course the joy of figuring out the original picture (that’s even more fun – you’ll see).

And above all, it looks amazing.

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