useless – Grammar Express: Prepositions Lite Review

It contains only 3 (yes, three) lessons and after you finish them (in 60 seconds) it says you have to buy another app ($2.90) which contains all lessons. This app is tricky - it's useless with 3 lessons only. Don't waste time to download it.
Review by i.33 on Grammar Express: Prepositions Lite.