[iOS] "eDrops Nature: Music pinball" free (usually $0.99), "Etter Drei" now free (usually $2.99)

Three high quality iOS apps are free today:

1) eDrops Nature : Music pinball to create relaxing ambiences [iOS Universal]
https://itunes.apple.com/au/app/id515845551

Create your own awesome relaxing ambiences playing with the sound.Five minutes using this app will reduce your stress level about 50%, for the price of one coffee. Trailer- http://vimeo.com/39627592

Features

-Create amazing sound textures and loops.
-Thousands of combinations.
-Load and save your patterns.
-Adjust Tempo.
-Modify the behaviour of the dropping pulses.
-Reduce your stress.
-Get super creative.

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2) Etter Drei [iOS iPad][5 Star rating]
https://itunes.apple.com/au/app/id708388097?mt=8

Drei is an award-winning game about logic, skill and collaboration.
Trailer- http://www.youtube.com/watch?v=2qtWc72PhXs

Overview
The mission is simple. But once again, things get in the way… Explosives, thunderstorms, completely incompetent colleagues. Oh, and did we mention gravity?

• Play with people across the world
• Master 48 fantastic levels
• Speak in 18 different languages
• Beautifully animated characters
• Real-time physics and 3D rendering
• Beautiful sound design

Awards
• Swiss Art Selection 2013
• MiniClip Award 2013
• FWA Mobile Award 2013
• Swiss Game Award 2013
• FWA Site of the Day 2013

Features
Languages: Drei features an universal communication tool which allows to speak to other players, from wherever they are. Drei supports 18 languages: Arabic, Chinese, English, French, German, Greek, Hindi, Italian, Japanese, Korean, Portuguese, Rhaeto-Romanic, Russian, Spanish, Swedish, Swiss-German and Turkish.

Optimized: Drei plays beautifully on the iPad. From the beginning it was engineered and optimized for Apple's tablet, taking advantage of the intuitive touch controls, the pretty display, and the possibility to use the screen vertically.

Sound: One of the best thing about Drei is how it sounds. Each character has its very own instrument. And as the characters work together they form Drei's unique universal orchestra, creating their very own musical landscape, inspired by archaic instruments and ancient melodies. All instruments were performed and recorded live with some of Switzerland's finest musicians.

Uber Swiss Design: Drei is designed to be as universal as possible. However, in a strange way it's also very Swiss, where it was made. Clean typography, minimalism with attention to detail. It's Swiss Design heritage, we can't deny it.

Technical Excellence: Even though it's not visible, it's the technical stuff too that makes this game special. Drei is the first real-time multiplayer iPad game with advanced physics and 3D rendering, as far as we know, taking mobile gaming to the next level.

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3) Binaural Sleep Beats - Insomnia Sounds [iOS Universal] (Was $1.99, now free)[4.5 Star rating]
https://itunes.apple.com/au/app/id683039880

Binaural beats are scientifically proven frequencies designed to induce specific states of mind. The beats in Binaural Sleep have been engineered to help you sleep, power nap, or for people with tough racing minds it has a longer cycle to get your brain ready for relaxation and deep sleep mode.