Crossword Decipher

Crossword Decipher is a type of puzzle that has no clues, instead you have to solve the puzzle by solving the code words provided.
Currently there are 2 chapters in this game and each chapter contains 180 levels.
Each chapter is playable in 2 modes Relax and Challenge, and contains different puzzles in each mode.
Chapter 1 - Letter Numbers:
The Letter-to-Number Cipher consists in replacing each letter by its position in the alphabet for example A=1, B=2, Z=26
Chapter 2 - Rot-13 Cipher: 
A simple letter substitution cipher that replaces a letter with the 13th letter after it in the alphabet for example A=N, B=O,Z=M.

There are 2 playing modes:
Relax play: keys are provided for every letter in the puzzle and all you have to do is substitute it with the right letter.
Challenge play: keys are only provided for parts of the word and you have to complete the rest of them on your own
- Total of 720 levels available for free
- Total of 4,320 levels available for purchase through bonus packs
- Complete levels to unlock achievements
- Collect stars by completing levels without mistakes
- Have fun, keep your brain fit and Improve your literacy and logic skills