Now there are many similar softwares on the mobile app, all of which are OK.

You can download it in mobile phone stores or shops.

This is software for processing pictures.

If you need professional software, Ps is definitely better.

You can add your own watermark.

If you don't use Mito Xiu Xiu professionally,

Meitu Xiu Xiu has batch processing, you set the watermark,

You can watermark them all.

I hope I can help you?