These are very similar to SAI in terms of "lightness" and UI. They are excellent for comic and manga artists.
Disclaimer: Prices and features accurate as of the date of publication. Always check the official Systemax website for the latest updates. is paint tool sai free
While not free, it is the industry standard. It often goes on sale for around $25, making it a competitor to SAI’s price point. Final Verdict These are very similar to SAI in terms of "lightness" and UI