iPhone (10000 programs)
Pros: Good graphics. Lots of weapons. Tons of quests.
Cons: Log-in difficulties. Large system requirement.
Pros: Combat adds to the match-3 gameplay. Great Adventure Time look.
Cons: Not as deep as the original. Difficulty spikes drive in-app purchases.
Pros: Speak and understand local slang. For business trips abroad. Offline words and phrases. Travel tools and tips.
Cons: Takes time to process. More features available when subscribed. May not cover all languages and slang. Experience is still different from conventional lessons.