Lock Pro is described as 'Password protect any macOS application from unauthorised usage without modifying anything in your system settings and/or applications' and is an app. There are 2 alternatives to Lock Pro for a variety of platforms, including Mac, Windows, Android, iPhone and Android Tablet apps. The best Lock Pro alternative is Cisdem AppCrypt.
Cisdem AppCrypt locks apps and blocks websites on Mac, Windows, iPhone, and Android. It's easy to use with a simple interface. App locking and website blocking can be active permanently or scheduled for specific times.
Lockish protects individual macOS applications with Touch ID or password authentication. Protected apps lock automatically after a configurable per-app idle timeout, when the Mac sleeps, or when the screen locks, while the rest of the system stays fully usable.
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