A common trait observed in APKFew and similar apps is the "Unlocking" loop. The user is told they must complete a survey, download a game, or click a link to "activate" the tracker. This is a Cost-Per-Action (CPA) fraud technique. The user completes the action, but the tracking features are never unlocked because the backend functionality likely does not exist.
The only technically viable feature in tools of this nature is the monitoring of "Online/Offline" status. WhatsApp servers broadcast a user's "online" presence to their contacts. If a user has not disabled their "Last Seen" visibility, a script can repeatedly query the server to check status changes. APKFew likely automates this process. apkfew whatsapp tracker
Let’s be honest about the real use cases: A common trait observed in APKFew and similar