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Period tracking app refuses to disclose data to American authorities
(www.newsweek.com)
This is a most excellent place for technology news and articles.
I wonder how many average users would be bothered to export their period database and transfer to a new phone every time they get a new phone. I do that when I get a new phone (not often, I use my phones till they break/are literally unusable and unfixable), but I've had real trouble getting other people to do these kinds of things.