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