iSpyoo S.

ISpyoo is a shockingly powerful spy program that unveils just about anything someone is doing on their phone. There is very little this slim app can't figure out, and it can completely hide itself from your intended target so they never know it's there. If you don't mind paying a price for this sort of power, this app is one of the best spying apps you can find.
To get this app on your phone, you need to sign up for an account and then bypass the Google Play store. Be careful not to install it on a phone you don't legally own, since that would be breaking the law. The app not only actively monitors the targeted smartphone or tablet, but also it pulls any old calls, texts, chats, and GPS information. The app even targets social media, supporting some of the most popular options like WhatsApp, Facebook, and Vibr. You view everything the phone is doing in real time thanks to iSpyoo's handy, gorgeous online control panel. When you're setting up the app, you have to hide it from inside of the app's menu -- it doesn't hide itself, automatically. The app starts you off with a free three-day trial, after which you have to sign up for a subscription service to keep using it.
ISpyoo gives you an incredibly effective phone monitoring tool. If you need to know what's happening on a phone you don't have access to 24/7, this application is a discreet way to find out. It goes deeper than similar apps and does it with plenty of style and ease.