I worry a lot about my kids and grandkids when they dash off someplace, and I think they worry about me too. I hear smartphones can let you know they’re OK without you bugging them. Is this true?

Yes. Edward C. Baig, personal tech writer for AARP, says to use one of these:

iPhone Check In
This feature in the Messages app texts designated recipients once you’ve arrived at a location or after a certain time.

Google Safety Check
This feature in the Personal Safety app can text selected contacts to inform them that you are starting an activity and how long it will take. If you don’t check in, they get a notice indicating your location. On some Google Pixel phones the app is preinstalled. For other Android phones, download it from the Google Play Store.

Email Tech Guru questions to personaltech@aarp.org.