From 1 channels You can check (LastSeen) approximately 300-450 numbers and the server will not meet you some time (few minutes). You need use other channel.
Версия: WhatsApp LastSeen Filter 1.2
Version : 1.2
OS : Windows
Price : $99
Features:
Load/generate inputs numbers
Filter (save WhatsApp/NonWhatsApp lists) 1500 numbers per 1-3 seconds
