Tech explained for non-geeks

Latest explainers

• Do I need another AI app?

  That AI app ad keeps following you around. Before you pay, start with what you want it for: lots of phones and email apps can already do it.

• How does my map work with no signal?

  Zero bars, and your blue dot still moves. Your phone listens to satellites for free; it's the map around the dot that may need data. Here's how to download it.

• Is it crazy to keep all my passwords in one place?

  A password app sounds like one big target. Here's why one password used everywhere is the real target, and how to set up the free manager you already have.

• Does a VPN make me invisible?

  VPN ads promise to make you invisible online. Here's what a VPN really hides on café Wi-Fi, who can still see you, and whether you need one.

• When I delete a photo, is it really gone?

  Deleted an awful photo? It's probably still on your phone, and in your cloud backup, for 30 days. Here's where it goes, how to really get rid of it, and the copies you can't delete.