Polarity Puzzle - Connect positive to negative poles comes from Hexagony and Pushopolous.
Both are decent point scoring puzzle apps. Of the two, I prefer Pushopolous. But I haven't played either in a long time.

The object in this game is to place the New Tiles from the bottom into the grid so that all the Positives match the Negatives.  There are 3 grid sizes.  I did the small grid & large grids and got 100%.
Interesting game, but it's definitely not the type to play over and over again.
https://itunes.apple.com/us/app/polarity-puzzle-connect-positive/id1089311955"mt=8

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