Photoscape might be a bit more popular than PhotoQt. We know about 1 link to it since March 2021 and only 1 link to PhotoQt. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Other possibility to open AVIF is via applications from https://www.gimp.org/ , https://krita.org/ , https://photoqt.org/ and other free open-source applications. Source: about 1 year ago
There are several free apps that are very good and have built in tutorials. PhotoScape X, and RawTherapee come to mind. http://x.photoscape.org/ https://www.rawtherapee.com/ I have on1 and Affinity paid versions, both are good and have their own tutorials. Source: over 1 year ago
ImageGlass - You can use Image to view your digital images and photos of many different formats.
GIMP - GIMP is a multiplatform photo manipulation tool.
IrfanView - IrfanView ... one of the most popular viewers worldwide.
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
Fragment - A powerful image viewing suite with advanced metadata info
Pixelmator - Pixelmator is an image-editing application for Mac and iPad.