Lately, many spy apps can monitor WhatsApp through phone numbers only. These applications allow you to track any person, whether a friend, brother or a partner. You can track all his movements within the application. So today, here are the 4 best apps to spy on WhatsApp using phone numbers only.

WLog application

WLog application gives you all the information about the target, from the time he's connected, how much time he spent, and when he exited. It can also send instant notifications once he's connected. You can monitor him even if he blocks you or changed his privacy settings like hiding his last appearance.

Download: WLog 

OnLong application

OnLong is a new application launched about a month ago and got a lot of features. Unfortunately, It offers the possibility to monitor only one number and if you want to add another number, you will have to pay.

Download: OnLong

WhatsPlus - last Seen Tracker app

With WhatsPlus - last Seen Tracker, you can track contacts and get moment warnings when the individual you pursue is online in inc. You will have the capacity to discover how frequently you have been internet amid the development. Regardless of whether the last locating is shut, you can in a split second pursue and get your contribution as a warning.

You can discover the aggregate number of minutes online in the day, and you can likewise perceive the amount of a week by week, fourteen-day, three-week, and month to month.

Download: WhatsPlus - last Seen Tracker app

The WLogin application

WLogin is a helper application that will keep check of Whatsapp online activities of the number you are going to add. When you add the number, you receive an instant notification when the number is online and you can see the online reports for the duration.