Ciphercraft lets you crack the code and reveal the wisdom of the ancients - from Einstein to Buddha to Kurt Cobain.
The hard and 'diabolic' mode eliminate spaces and punctuation clues, making it one of the most challenging games of its kind. To assist it includes tools to analyse the frequency distribution of letters - including bigrams and trigrams (groups of 2 or 3 letters).
If it is still too difficult, take a hint - which will reveal a single letter for you.
Hours of fun in this simple, lightweight and sometimes frustratingly challenging app.