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Whether you need specific symbols for a technical paper or are simply looking to add some flavor to your social media posts, the iPhone keyboard doesn't have a very extensive library of symbols. You can find a few extra symbols by long pressing on certain keys like the '$' which will reveal a few other currency symbols, and you can find some in the emoji library like the trademark and copyright symbols, but they aren't really ideal (they don't appear as superscripts).

Apple introduced personalized recommendations on how iPhone users can increase their storage in iOS 11. If you navigate to Settings > General > iPhone Storage you will see suggestions on how to better manage storage on your device. Using your own data on what's actually clogging up your iPhone is much better than using generic tips and tricks you may have read on the internet. The Recommendations section will typically include tabs like "Review Large Attachments" or "Offload Unused Apps." Some users may notice their recommendations include a "Review Downloaded Videos" option.