The home button does need an off switch. Your objects are nothing some good design couldn't solve. For example, allow parents to explicitly enable toddler mode

The home button does need an off switch. Your objects are nothing some good design couldn't solve. For example, allow parents to explicitly enable toddler mode for specific apps in settings. Also, allow multiple versions of exiting toddler mode -- requiring press and hold for one second would avoid inadvertent exiting like my son has a tendency to do, while press and hold and password would mean that you can effectively lock your iphone so your toddler can't make phone calls / delete email. I got my son an ipod touch when he was about 18 months old so he could watch movies on long car rides. All the points mentioned are dead on from my perspective. I'd also add two points: - don't rely on audio instructions. a parent noticing that a toddler is getting frustrated may not have heard the "pick the thing with the same initial sound" instruction. Put the text on the screen. - the best upsell is more content. Toddler Teasers Shapes does this really well. They built a complete and engaging game, and offer upsells of more content like colors and letters in the same game format. Actually, toddler teasers does the whole experience really well. The splash screen has text "triple click to access settings" and only one big button at the bottom that says "play". The additional content is accessed through the settings screen.