The statement that is true if you are using a web app is: You can’t usually edit your files if you don’t have internet access.
Web apps typically require an internet connection to function, meaning that if you lose connectivity, you may not be able to edit your files. The other statements are not true:
- Web apps do not need to be installed on your device, as they run in a web browser.
- They can be accessed from any device with internet access, not just the one they were used on.
- Files can often be shared when using web apps, especially if they have collaborative features.