Don’t waste your money
I needed to rename a photo for a website that does not permit any special characters including underscore. This app does not let you choose your own name. You can choose a word after which it adds an underscore and a number. Extremely misleading
Response from developer
Thanks for the feedback — this has now been improved. You can now fully customize filenames, including choosing your own names without forced formatting, and optionally add numbering when needed.