My friend swears by it but every time she mentioned a ‘leap’ (we have toddlers the same age) I would just Google it and it tells you everything you need to know 😅
I wouldn’t waste your money. I got it with my first and all it does is tells you when they’re cranky and what they should be doing at each developmental age
It’s rubbish, all it does is tell you when they might be happy or cranky…. I know that as I live through it each day 🤣