This isn't your normal filter app. The hint's right there in the icon. Instead, Darkr tries to recreate the process of using a real-life darkroom to develop your photos. For starters, your camera roll appears as a bin of negatives. Select one, and it gives you a digital test strip to find the correct look, then takes you into an editor where you can crop, rotate, dodge, burn, blur, and tone the image. It has several built-in camera modes, including one that mimics a large-format camera, and as you might expect with a past-obsessed app, it only produces results in black and white.
Traveling during the holiday season is hard enough without having to guess how long the line through security will take, where you can pick up a last-minute gift, or whether or not you can find some Wi-Fi. FlightSpeak keeps you informed of all that and more. It has detailed information for over 300 airports worldwide, including up-to-date security wait times, store and restaurant locations — perfect for finding a pre-flight drink to calm your nerves — Wi-Fi information, and power outlets for charging your gadgets.
Your phone's browser most likely has a "private" mode built in, but a lot of times it doesn't do enough to completely protect your privacy. That's where Firefox Focus comes in. Backed by Mozilla, it automatically blocks a wide range of tracking tools, keeping you from being followed by advertisers and potentially unsavory suspects. It makes it extremely easy to erase your history, passwords, and cookies, and since many of the trackers it blocks are advertising-related, it might just speed up your browsing experience while cutting your data usage.
If you're over the age of, say, 20, odds are you have some old analog photo prints laying around. Instead of buying a scanner to digitize them, use the highly capable camera in your phone and the PhotoScan app from Google. It uses specialized algorithms to detect edges, correct perspective, rotate as needed, and stitch multiple exposures together to get rid of glare. It also integrates seamlessly with Google Photos, and as with nearly all software from Mountain View, it's completely free.