Invision might be a bit more popular than PaintTool SAI. We know about 3 links to it since March 2021 and only 3 links to PaintTool SAI. 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.
I'm curious, where is your PTS folder? If you put it in c:\program files or c:\program files (x86), it might cause problems. More info here: https://systemax.jp/en/sai/. Source: about 1 year ago
I would contact Systemax Software, the maker of SAI. Here's their website: https://systemax.jp/en/sai/. Source: almost 2 years ago
Where did you download it from? If you didn't get it from https://systemax.jp/en/sai/ then it could be sideloaded malware. Source: about 2 years ago
Search for UI/Design/Firma Tutorials on YouTube, check out UI related Blog posts on invisionapp.com, check out UI Inspiration muzli. Source: over 1 year ago
We have 100s of different screens to migrate as well as a really large design system, and to date we've been successfully using the invisionapp.com website to keep things really well organized and easy to navigate with tags, pages, etc. We've enjoyed this system so far because it's easy for PMs and Devs to navigate in a website format, without having to learn the design software or get bogged down in artboards. Source: almost 2 years ago
Other options: explain everything whiteboard, invisionapp.com. Source: over 2 years ago
Krita - Krita is a professional FREE and open source painting program. It is made by artists that want to seaffordable art tools for everyone. Concept art. texture and matte painters, illustrations and comics.
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Clip Studio Paint - The artist's software for drawing and painting.
Zeplin - Collaboration app for UI designers & frontend developers
MyPaint - MyPaint is a fast, distraction-free, and easy painting tool for digital artists.
Marvel - Turn sketches, mockups and designs into web, iPhone, iOS, Android and Apple Watch app prototypes.