Last seen tracker for WhatsApp - Last seen tracker for WhatsApp app helps you save all your WhatsApp data on the internal storage to view all your recent conversations at a glance.
WaStat – WhatsApp tracker - WaStat – WhatsApp tracker app shows the last online time of a phone number at a glance, so you can contact them whenever they get online to share something important to them.
GBWhatsapp - GBWhatsApp is a similar version for WhatsApp Plus have many new features
Whatsdog Last Seen - Whatsdog Last Seen app shows the accurate last online time of all the phone numbers in your contact list to message them right on time and get an instant reply from them.
Logify – WhatsApp Tracker - Logify – WhatsApp Tracker app shows the last online time and the current online status of all the phone numbers in their contacts list to track their social media usage.
WhatsLog - WhatsLog app comes up with features to assist you in adding up to 10 different phone numbers to a tracking list at the same time to view their last online time and total phone usage on a daily basis.