Within minutes, the notification bell would start ringing. The numbers would tick up. For a moment, the user felt a rush of dopamine. They looked popular. They looked established.

Even if the application is devoid of malware, its efficacy is highly questionable:

: Using automation tools to manipulate engagement is a violation of the Terms of Service for most social media platforms. This can result in a temporary shadowban or a permanent account suspension.

Users soon noticed that the followers they gained were disappearing. Instagram, Facebook, and TikTok have sophisticated AI systems designed to detect bot activity. When these platforms identified the accounts coming from fbsub pro as fake, they mass-banned them. Users would log in the next day to find their follower count lower than when they started.

In this environment of frustration and impatience, third-party tools promising "instant growth" began to appear. Among the most searched and utilized was and its downloadable Android application, fbsub pro apk .