Kuadro might be a bit more popular than Photoscape. We know about 1 link to it since March 2021 and only 1 link to Photoscape. 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.
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
There may be some newer program that also does this but it reminds me of the old Kuadro. Source: over 1 year ago
GIMP - GIMP is a multiplatform photo manipulation tool.
PureRef - The simple way to view and organize your multiple reference images.
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
Epic Pen - A windows tool for drawing over your desktop and applications
Pixelmator - Pixelmator is an image-editing application for Mac and iPad.
MacinCloud - MacinCloud is a Mac cloud platform that provides on-demand Mac cloud servers, flexible dev workload infrastructure and comprehensive Mac in the Cloud solutions