My kid's school also used TT Rockstars in school before the pandemic. Seemed to work well for kids that age for giving them fast recall of memorized times table

My kid's school also used TT Rockstars in school before the pandemic. Seemed to work well for kids that age for giving them fast recall of memorized times tables. Beyond that, I didn't see any other effective gamified learning tools. Seems like it would be very much subject and age dependent.