There are many ways to remove exif data from your images and in many ways it’s a good idea to do so. Exif data stores information related to your image, such as date/time you captured it, your device, settings and sometimes more.
There are a number of apps available for both iOS and Android that will wipe this information for you simply.
For Android users, try Instant EXIF Remover – download here/free
For iOS users, try Exif Wizard/download here/free