Your smartphone is full of surprises. There's an app if you want to use your phone as a magnifying glass or scanner. Tap or click here for hidden apps on your smartphone and how to find them.
Costco is testing a "Scan & Go" system to expedite checkout. The new system will allow customers to scan items with their phones and pay through the app. The "Scan & Go" system is being tested in 27 ...
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