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