Final answer:
When an app isn't compatible with your phone, it won't work properly or may not work at all due to differences in operating systems.
Step-by-step explanation:
When an app is not compatible with your phone, it will not work properly or may not work at all. Compatibility issues can arise due to differences in the operating system, hardware specifications, or other technical requirements. For example, if you have an Android phone.
Try to download an app that is only available for iOS devices, you won't be able to install it. Similarly, if your phone doesn't meet the minimum system requirements for an app, it may crash, freeze, or show errors when you try to use it.
App developers usually specify the compatible operating systems and device models in the app's description or on their website. If an app is not compatible with your phone, you may need to look for alternative apps that serve a similar purpose and are compatible with your device.