Levels for 2048 app for iPhone and iPad

Cant get enough of the hugely popular 2048 puzzle game made by Gabrielle Cirulli? Here is an app which allows you to play the game from a variety of different themes. The game starts from an easy theme (6 tiles on a 3 x 3 grid) before progressing to more difficult themes (with increasing number of tiles on 3 x 3, 4 x 4 and 5 x 5 grids). The game begins with only two options: Classic and Chess. Upon clearing the Chess theme, you unlock the next theme. Your menu selection expands as you unlock the themes.
The following themes are included in this app:
- Classic (the original 2048 game)
- Chess
- Dice
- Colors
- Currencies
- Planets
- New 8 Wonders of the World
- Mahjong (Circles)
- Mahjong (Bamboo)
- Shapes (2D)
- Shapes (3D)
- Fruits
- Musical Instruments
- Astrology
- Chinese Zodiac
- Playing Cards
More themes to be added later on. Do feel free to share with us any ideas you may have, and we will consider including them into the app.

Source of images:
Licensed under Creative Commons: By Attribution 2.0 Generic
https://creativecommons.org/licenses/by-sa/2.0/
Rainbow colors (uhuru1701), Mahjong tiles (Priscilla), Apple (Ana Santos), Harmonica (David Lofink), Guitar (Martin Moller), Organ (doryfour), Astrology (Mike Licht)
Licensed under Creative Commons: By Attribution 3.0
http://creativecommons.org/licenses/by-sa/3.0/deed.en
Mahjong tiles (Circles) (Jerry Crimson Mann),Culinary fruits frontview.jpg (Bill Ebbesen),
Banana-single (Evan-Amos), Kiwi (BenduKiwi), Orange1.jpg (Banjamint444), Pear (Kombucha),
Raspberry (BraveNewWorld), Strawberry (Rlaferla), Violin (A.Kniesel)
Licensed under Creative Commons: By Attribution 4.0
http://creativecommons.org/licenses/by/4.0/
Chinese Zodiac (Ichiban Yada)
The rest of the images are from the Public Domain.