There is no official portable version from SYSTEMAX. Any pre-packaged "SAI 2 Portable" you download from random file sharing sites is almost certainly an unauthorized crack or modified executable.
Verdict: The slight increase in file size for SAI 2 is worth every megabyte. Yes—but only legally. paint tool sai 2 portable
| Feature | SAI 1 Portable | SAI 2 Portable | | :--- | :--- | :--- | | Canvas Rotation | No | Yes | | Text Tool | No | Yes | | Max Stabilizer | 15 | 100 | | RAM Limit | <4GB | Unlimited (64-bit) | | File Size | ~3MB | ~50MB | | Blending Modes | Basic | Advanced (Multiply, Glow, etc.) | There is no official portable version from SYSTEMAX