How to spy on someone’s text messages without their phone for free?

The only possible way to spy on someone’s text messages without their phone for free is using spy software. This application is service-based, undetectable, and allows viewing almost every single activity on the target device, including reading someone’s text messages. This kind of service is never free since it requires site-based, robust data protection, and third-party services.
The most prominent spy applications are SpyBubble, Spyzie, Spy Phone App, TheTruthSpy, mSpy.