My kid is 5. The apps are complementary. So wen she is not studying she can be playing but she is still learning new words.
Searched for Little Pim and it looks really fun
https://itunes.apple.com/us/app/pimtrack-language-learning/id748399936?mt=8Also found this one
https://itunes.apple.com/us/app/monki-birthday-party-language/id886267802?mt=8Looks really fun too.
Will try them all. And see which one my kid likes the most.
If someone has more ideas please let me know.
Thanks