Here is the full list of all 22 Anagrams achievements.
Solve 1000 puzzles
Solve 1000 anagrams
Finish all the categories in Classic mode
Solve ALL the anagrams in Blitz mode in ONE round
Unlock all the categories in Classic mode
Score 10,000,000 points in Classic mode
Solve 100 anagrams
Solve 100 puzzles
Play Zen mode for 1 hour
Last 15 minutes in Blitz mode
Last 10 minutes in Blitz mode
Play a puzzle & solve an anagram in Zen mode
Unlock all three game modes
Unlock Zen mode
Solve an anagram in 5 seconds or less
Last 5 minutes in Blitz mode
Unlock Blitz mode
Unlock your first category in Classic mode
Solve 10 anagrams
Solve 10 puzzles
Play a puzzle & solve an anagram in Free mode
Unlock Free mode