Thank you! I like and use Camera+2 primarily for the Macro setting, which I leave it set to. It does a pretty good job when I don’t have add-on lenses. The quality of this app is exceptional and everything is fairly easy to find. CameraPixels has good and simple bracketing, focus stacking and time lapse. The image quality is also excellent. I recently requested its sister app, Chromatica, to add the ability to store copyright info as I had a couple of images purloined on Facebook and Instagram lately. Evidently other people asked too so it is in there as of the latest update.
Halide is a fairly good app. I use it every now and then for the depth map it produces when trying Portrait type images. Their other app, Spectre, is interesting. They say it's a computational camera app. Aren't they all on a mobile platform? One can produce some nice images though.
I was invited to try out Obscura2. The interface is quite friendly with plenty of adjustments. The quality of images is what one would expect too, and it’s not too difficult to learn.
I have my very specific apps for different things: iLightningCam for lightning, SlowShutter for water, plants, people, and generally making things look weird, Hipstamatic, cos it's Hipsta, VividHDR because it’s easy and produces images that don't look like cartoons.
I’m trying to stick with well thought out camera apps that are developed and updated with the user in mind, and provide consistently good output.
But I do like to play. Some cool camera apps are Bluristic which seems to get the better of me, SWRLY, which is just plain fun, PortraitCam which is cool for, well, portraits, Hyperspectiv which is trippy, and Fluxu which is, let's say, interesting.
Wow. That's a lot...