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