Pineapple Pictures is described as 'A lightweight image viewer that allows you to view frequently used image format files quickly, and provide a Stay-on-Top window setting so you can use it to pin a reference image at the top to work with other software' and is a Image Viewer in the photos & graphics category. There are more than 10 alternatives to Pineapple Pictures for a variety of platforms, including Windows, Linux, Flathub, PortableApps.com and Mac apps. The best Pineapple Pictures alternative is IrfanView. It's not free, so if you're looking for a free alternative, you could try IrfanView or ImageGlass. Other great apps like Pineapple Pictures are qView, JPEGView, qimgv and Pix.