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Google Camera (free - no IAP) is a nice replacement for the stock camera app that comes with most Android devices. Developed for phones and tablets running at least Android 4.4+ KitKat, Google Camera has many of the same features that should be expected from other high end camera apps.
Specs
Pros
Pro Photo Sphere
Use Photo Sphere and Google Camera to create three hundred and sixty degree panoramic photos easily. Photo Sphere photo images allow the viewer to move around within the world you have created, move up, down, left or right to see everything. Photo Sphere also gives you the tools to create your own Google Maps street view and share it with other Maps users.
Cons
Con Requires Android 4.4+ (KitKat)
The Google Camera app system requirements do require Android 4.4 (KitKat) or better, as a result this does leave out a lot of older phones and tablets. The app does take advantage of features of higher end phones, so you will need to upgrade if your device has an older version of Android.