Free iTunes game, usual price is $1.99 (USD I think)
Works with iPhone and iPad.
Good puzzle game with nice looking design, the art looks similar to Monument Valley.
In this game you need to find the correct position to be able to strategically emit the sound wave to turn on the bell as per required order, there are 160 stages available.
App store description:
Maestria is a new kind of puzzle game in which you will help Fugue bring back Harmony in eight enchanting worlds.
In order to win, you just need to ring the bells in the correct order. Easy enough… But will you find a solution to the 160 levels of the game?
Also free on Google Play for Android users (credit to phroghollow): https://play.google.com/store/apps/details?id=com.Latour.Mae…
Wardwell House also free, previously $1.99
Wardwell House is an innovative and realistic horror game with outstanding atmosphere. You must find hidden clues and objects of interest that slowly reveal the haunting story. Feel the build-up of fear as you traverse the forest and make your way through Wardwell House.
https://itunes.apple.com/au/app/wardwell-house/id1051991801?…
Also free on Google Play for Android users: https://play.google.com/store/apps/details?id=com.Latour.Mae…