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How To: Cancel Your MyFitnessPal Premium Subscription on Android & iOS

In 2015, MyFitnessPal launched its premium service, an ad-free subscription for $9.99 a month or $49.99 a year which provides food analysis, deeper nutrient tools, more goal options, and exclusive content. After giving MyFitnessPal Premium a shot on your iPhone or Android phone, those perks may be unnecessary to your end goal, but you'll find that canceling your paid membership isn't very easy.

How To: Use Samsung Health to Diagnose Symptoms from the Privacy of Your Phone

You really can't go wrong with Samsung Health when it comes to staying on top of fitness-related data. Its features help you keep track of workouts, track calorie and nutrition intake, and monitor your heart rate, just to name a few. And if you start exhibiting symptoms you've never had before, you can even use the app to find out more about what's wrong with you.

How To: Buy Movies & TV Shows from Amazon Prime Video on Your iPhone

Amazon Prime Video is undoubtedly one of the best services out there for streaming and downloading movies and TV shows to your iPhone. If you try to buy or rent a movie or show in any of Amazon's iOS apps, however, you'll notice that there's no apparent way to do so. No buttons, no links, nada. What gives, and how can you buy and rent content from Amazon on your iOS device?

How To: Perform Local Privilege Escalation Using a Linux Kernel Exploit

Getting root is considered the Holy Grail in the world of Linux exploitation. Much like SYSTEM on Windows, the root account provides full administrative access to the operating system. Sometimes even a successful exploit will only give a low-level shell; In that case, a technique called privilege escalation can be used to gain access to more powerful accounts and completely own the system.

How To: Use Maltego to Fingerprint an Entire Network Using Only a Domain Name

Hackers rely on good data to be able to pull off an attack, and reconnaissance is the stage of the hack in which they must learn as much as they can to devise a plan of action. Technical details are a critical component of this picture, and with OSINT tools like Maltego, a single domain name is everything you need to fingerprint the tech details of an organization from IP address to AS number.

How To: Download Maps & Navigation Routes for Offline Use in Apple Maps

Whether due to spotty cellular reception or just data that you want to save, popular navigation apps like Google Maps and Waze offer an offline feature that lets you navigate from one location to another in the absence of internet service. Apple Maps also lets you use its service offline on your iPhone, though the feature is not as straightforward as it is on its competitors.

ARCore 101: How to Create a Mobile AR Application in Unity, Part 3 (Setting Up the App Controller)

There are hundreds, if not thousands, of programming languages and variations of those languages that exist. Currently, in the augmented reality space, it seems the Microsoft-created C# has won out as the overall top language of choice. While there are other options like JavaScript and C++, to name a few, C# seems to be the most worthwhile place to invest one's time and effort.

Snapchat 101: How to Attach URLs to Your Snaps as Links

While Instagram users can attach links to images, they can only do so in stories, and only if they meet the special requirements that most users cannot obtain. Snapchat, on the other hand, lets anyone add a link, and it can be done in regular snaps and in your story. This feature has only been around since July 2017, so you may have missed it and not even realized it was a possibility.

How To: Read WhatsApp Messages Without Opening Them & Letting the Sender Know

WhatsApp comes with a ton of great features that make it the go-to messaging app for millions of people around the world. Among these is the ingeniously simple Read Receipts that let you know your message has been viewed. If you want to read a message without alerting the sender, however, there are simple tricks you can perform to give yourself plausible deniability.

How To: How Hackers Use Hidden Data on Airline Boarding Passes to Hack Flights

Millions of travelers pass through airports each day without understanding how powerful and insecure a boarding pass can be. Anyone can scan the boarding pass barcode with a mobile app, allowing access to frequent-flyer accounts and even a passenger's temporary airline account. In this guide, we will explore how hackers scan and decode the information contained in a boarding pass barcode and why.

How To: Linux Basics for the Aspiring Hacker: Using Ship for Quick & Handy IP Address Information

Whether you're white hat, black hat, or some shade in-between, navigating through a network is a core part of hacking. To do that, we need to be able to explore a network to discover the addresses of gateways, interfaces, and other attached devices. When ifconfig just isn't enough, you can steer your way around a network with a convenient tool called Ship, the script for everything IP.

Instagram 101: How to Share Posts & Stories to All Your Close Friends' Feeds Only

Instagram is a great platform to share photos and videos with the world, but sharing with smaller groups is near impossible. You can directly message pictures, stories, or post links to friends, but that only works for one person at a time or in group chats you create. To share your content with a small group of people you care about the most, you'll want to use the "Close Friends" list.