XnView MP stands for Multi Platform = it is available for Windows, Linux and MacOS. It is a continuation of the older XnView Classic. In my opinion it is a great alternative to Windows photos app or any Linux image viewer that comes preinstalled. I even think it is an alternative to IrfanView. It is really fast and simple to use, supports more than 500 image formats, has built in folder browser, image converter, editor... AND MORE!
SLOW SHUTTER CAM - SLOW SHUTTER CAM is an app presented in the market by Cogitap Software to take the photo capturing experience to a whole new level by taking photos after adjusting the shutter speed.
IrfanView - IrfanView ... one of the most popular viewers worldwide.
Halide - A premium camera for your phone
FastStone Image Viewer - FastStone Image Viewer is a fast, stable, user-friendly image browser, converter and editor.
NightCap Camera - NightCap Camera is an exceptional tool that is used significantly in low light and night time to make dark photos looks like they were made in full light, developed in the market by Realtime Dreams Limited Inc.
JPEGView - JPEGView is a small and fast viewer/editor for JPEG, BMP, PNG, GIF and TIFF images.