If you aren't ready to spend money yet, there are incredible open-source programs that offer similar "brush feels" and stabilizers without the price tag:
The developer offers a for the original SAI, but SAI 2 is technically still in "Technical Preview." To save your work and use all features in SAI 2, you must own a valid license for the original Paint Tool SAI (Version 1). The Risks of "Free License" Cracks paint tool sai 2 license free
Before diving into the licensing aspect, it's essential to understand the capabilities of PaintTool SAI 2. Some of its notable features include: If you aren't ready to spend money yet,