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Your iPhone automatically remembers Wi-Fi passwords and will automatically join known networks, unless you have that feature turned off. There are instances when you want to be able to see these stored Wi-Fi passwords so you can get on the network with other devices. Unfortunately there is no way to view your iPhone's remembered passwords on the phone itself. You can, however, use the Keychain Access application on your Mac to view your iPhone's stored Wi-Fi passwords. Here's how to do it:

Apple has expanded the Battery Health feature with the launch of iOS 11.3. Following questions from users about battery life, iPhone battery replacement, and power management issues when batteries are degraded, iOS now delivers more battery information. Finding out whether your iPhone battery is a candidate for replacement is simple.

Punching in your home address (or work or any common destination) in your favorite navigation app grows tiresome after a while, even if it is already there in your recent places. Thankfully both Waze and Google Maps offer shortcuts to directions to your favorite places through a simple 3D Touch and a tap. All you have to do is assign your home, work, etc. locations, then they will be available for quick navigation. Apple Maps, as you would expect, is supposed to have this functionality as well, but as of this writing it is not working properly in iOS 11.3

While Apple has yet to offer an official "Dark Mode" setting for low light environments, iOS 11 does offer "Smart Invert Colors" in the Accessibility settings, which basically turns white backgrounds to black and black text to white (and vice-versa) and dims bright colors. This makes viewing in low light situations easier on the eyes and less distracting to others around you. Unfortunately it is not very easy to get to in a hurry because it is buried in Settings -> General -> Accessibility -> Display Accommodations -> Invert Colors -> Smart Invert.

While the cryptocurrency craze is decidedly down from its preposterous December '17 peak, there is still plenty of profit to be made in the space, and plenty of legitimate coins/tokens with real world applicability. Though many of the crypto coins out there are smoke and mirrors, blockchain technology is very real and it is set to disrupt just about everything in the next few decades.