SoftPerfect WiFi Guard is a great app for tracking strangers and various devices on your local network. Modern Wi-Fi networks are generally well protected, but there are a number of weak points that can compromise your Wi-Fi password; these include encryption vulnerabilities and brute force attacks. As a result, someone can gain unauthorized access to your Internet connection and local network and use them without being noticed.

WiFi Guard will warn you if your network is being used without your knowledge.

Microsoft Teams — an enterprise platform that integrates chat, meetings, notes, and attachments into a workspace. Developed by Microsoft as a competitor to the popular corporate solution Slack.