Open Camera

Open Camera is a fully featured and completely free Camera app for Android phones and tablets. Features:
* Option to auto-stabilize so your pictures are perfectly level no matter what (see example image).
* Expose your camera's functionality: support for focus modes, scene modes, color effects, white balance, ISO, exposure compensation/lock, face detection, torch, antibanding.
* Video recording (including HD, taking photos while recording video, time lapse).
* Handy remote controls: timer (with optional voice countdown), auto-repeat mode (with configurable delay).
* Option to take photo remotely by making a noise (e.g., voice, whistle), or by voice command "cheese".
* Configurable volume keys.
* Configurable user interface.
* Zoom via multi-touch gesture and single-touch control.
* Option to lock orientation to portrait or landscape for photo or video. Upside-down preview option for use with attachable lenses.
* Choice of save folder (including support for Storage Access Framework).
* Disable shutter sound.
* Overlay a choice of grids and crop guides.
* Optional GPS location tagging (geotagging) of photos and videos; for photos this includes compass direction (GPSImgDirection, GPSImgDirectionRef).
* Apply date and timestamp, location coordinates, and custom text to photos; store date/time and location as video subtitles (.SRT).
* Yes you can take a selfie (also known as front camera), includes support for "screen flash".
* Panorama, including for front camera.
* Support for (some) external microphones.
* Widget to automatically take a photo after launching.
* Support for HDR (with auto-alignment and ghost removal) and Exposure Bracketing.
* Support for Camera2 API: manual focus distance (with optional focus assist); manual ISO; manual exposure time; manual white balance temperature; burst mode; RAW (DNG) files; slow motion video.
* Noise reduction (including low light night mode) and Dynamic range optimisation modes for better quality photos.
* Options for on-screen histogram, zebra stripes, focus peaking.
* Focus bracketing mode.
* Support for Mi Band Selfie ( Aleh Tsitou ).
* Small file size.
* Completely free, and no ads in the app (I only run ads on the website). Open Source.

(Some features may not be available on all devices, as they may depend on hardware or camera features, the Android version, etc.)

Website: http://opencamera.org.uk/
FAQ: http://opencamera.org.uk/help.html#faq
Forums: https://sourceforge.net/p/opencamera/discussion/
Source: https://sourceforge.net/p/opencamera/code/

Note that it's not possible for me to test Open Camera on every Android device out there, so please test before using Open Camera to photo/video your wedding etc :)

App icon by Adam Lapinski.