iWatermark vs wmk
| iWatermark | wmk | |
|---|---|---|
| Free trial | Yes | |
| Platforms | Android, iOS, macOS, Windows | Windows, Linux |
| Free plan | Yes | |
| Batch watermarking | Yes | Yes |
| Logo marks | Yes | Yes |
| Signature marks | Yes | |
| Watermark presets | Yes | |
| Supported platforms | macOS, Windows, iOS, Android | Windows and Linux |
| API access | Yes |
Listed together in Best Photo Watermarking Software