Based on our record, PaintTool SAI seems to be more popular. It has been mentiond 3 times since March 2021. 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
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.
Wondershare PDFelement - All-in-one PDF editor
Clip Studio Paint - The artist's software for drawing and painting.
Foxit PhantomPDF - Edit PDF files with our feature-rich PDF Editor. Download Foxit PDF Editor to convert, sign, scan / OCR & more. A speedy PDF Editor alternative to Adobe Acrobat.
MyPaint - MyPaint is a fast, distraction-free, and easy painting tool for digital artists.
Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.