Google released its own wallpapers app on the Play Store this week. The app comes with multiple categories such as earth, landscapes, cityscapes, life, and textures that have a whole bunch of high resolution images in them. The earth category is particularly interesting as it has satellite images from around the world. All the images have a link leading to their source. A lot of the images are actually sourced from 500px. The app also has a feature where you can set it to automatically select images from a particular category and then swap it daily.
Marsbot is a new app by Foursquare. The app keeps a track of the places you like to visit and send you suggestions based on that. It can also suggest you nearby places. The app sends you suggestions to you over SMS and you can even reply back if you want. The service is US only for now and requires a US number to register.
Chartistic is a charting application for iOS. It is designed with the touchscreen in mind and works out great for creating graphs and charts right on your phone or tablet.
Plants vs. Zombies Heroes brings the familiar PvZ gameplay back but with a new twist. The game is card based, so you have a set of cards, which are the different plants, and each card or plant has a certain amount of health and attack points. Think Hearthstone, but with plants.
The Bug Butcher is a side scrolling action game, where you play as an exterminator and have to take out the bug infestation that keep coming in through the ceiling and you have to take them out before take out you or your employer.
Mini Metro is a subway simulator where you join the stations and create train lines. Your goal is draw the lines and run the trains, making sure the routes are as efficient as possible and that the trains dont run into each other.