I downloaded this app when my baby was 6 months old & she loved it right away. It would hold her attention for up to 30 minutes. It would probably hold her attention even longer if the objects didnt randomly disappear over time. (Please fix this!) My baby is now 10 months & is even more impressed by this app. She actually cried the other day when I shut it off. It was so cute/funny! Weve downloaded numerous other baby apps- and our little one doesnt love any of them as much as she loves this rattle! Thanks so much!!!