Yaar, seedha bolunga - bina permission ke kisi ka password crack karna legally aur ethically galat hai, aur koi bhi legit app aisa nahi karti. 
Agar genuine concern hai (jaise partner ya bachche ki safety), toh mSpy jaisi apps hain jo monitoring mein help karti hain - lekin unke liye ek baar phone access zaroori hota hai setup ke liye, aur ideally dono ki consent bhi honi chahiye.
Bina touch kiye, bina permission ke - yeh wala shortcut real life mein exist nahi karta, aur jo log aise claim karte hain woh 99% scammers hote hain! 