You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Is it possible to find an 3 word address offline or even with a paper system if technology fails? #Backup
Yes, if you have the what3words app installed on your phone it works offline so you can discover your 3 word address without Wifi or mobile data. The map may not download but the 3 word address of the location will still be shown. Download the app now 
http://qtrh4.app.goo.gl/TWB
Just tried it - it’s remarkable in its simplicity!
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