The funny thing about this is that the first time I had that moment of realization was when I got the Sphero BB-8 toy from my kids for Christmas. It had a dedicated app. The reason it’s funny is because, out of all the things that I own, it’s the only app-driven one that still works. Sphero just merged it into their main app. Once that app stops getting updated, this toy will cease to work despite everything about it being functional. ☹️
I’m not sure but that’s a potential solution. You’d have to find the older APK somewhere but I feel like it should work since it’s just a Bluetooth connection to the toy.