Here is the full list of all 31 Word Factori achievements.
discover all secret characters
spin buildings 20 times
discover 50 stickers
complete all secret levels
finsh all levels
complete all main levels
complete all challenge levels
build 5,000 boxes
find all letter recipes
complete 7 words of the day
throw a building off screen
discover 25 stickers
place 500 buildings
find a recipe for each letter
build 24 words
discover 50 recipes
discover 10 stickers
discover a sticker by typing your own word
build a word that you typed
type your own word
complete a word of the day
finish the tutorial levels
discover your first recipe
discover 20 recipes
discover your first sticker
build 12 words
build 100 boxes
discover your first secret recipe
complete a challenge level
build 96 words
build 10,000 boxes