PictStamp vs uMark
| PictStamp | uMark | |
|---|---|---|
| Free plan | Yes | |
| Paid from | Free | |
| Platforms | iOS, macOS | macOS, Windows |
| Free plan | Yes | Yes |
| Batch watermarking | Yes | Yes |
| Logo marks | Yes | Yes |
| Signature marks | Yes | |
| Watermark presets | Yes | Yes |
| Supported platforms | iPhone, iPad | Windows and macOS |
Listed together in Best Photo Watermarking Software