Car Game for Kids & Toddlers

My grandchildren (5 and 3) love this game!! They figured it all out and could literally play for hours. I bought the full game but downloaded it on a secondary iPad so it doesn’t work on my primary one. Is it possible to get it to work on both? My grandkids and I would be very grateful 😎 I got a response right away and was able to get the game on both IPads 👍 Everyone is happy 👌🤩

Update: I tried uninstalling and reinstalling for the third time and this time it finally worked. I probably won't be purchasing any other parts to this as it could disappear at any moment. :( I purchased one of the packs for my toddler to try and it was inaccessible the next morning. I can't even repurchase it. I've tried uninstalling and reinstalling the app. I tried closing out and restarting my iPad. It's gone and he's so upset. Why would you take someone's money and then take their feature away after 12 hours?

At a quick glance this app says it supports family sharing, that is misleading. After getting the full unlock for my kids at $7.99 I then find out that even with them being kids and all tied to the same Apple ID via family sharing I have to purchase this separate for each member of the family or sacrifice having individual Apple IDs for family members. Complete garbage!! They say family sharing works but only with the free download, and then when you try the in app purchases you find out only the already free stuff works with family sharing, kinda defeats the point if it only works with free stuff. A greedy care nothing about people company in my mind, even more so that they are doing this with an app for KIDS!!!