Originally Posted On: https://studycat.com/blog/the-secret-behind-the-popular-childrens-french-language-iphone-app-that-kids-cant-put-down/ Picture a rainy afternoon—shoes from the door, backpack 50 percent-open, energy dipping. I hand my cellular phone over and—increase—hues, sounds, tiny cats bouncing all around. Two minutes later on, a shy