I know this is kind of an old thread, but in case you haven't found a solution (or someone else looking for one) I might help.
I work for a rental software provider called
Rentman and we have a solution that could work. You can link your account to a WordPress webshop, so your customers could book their own stuff from there. Here's an
example of a webshop with Rentman , if you want more info you can read
this article.
P.S. I hope I didn't break the forum's rules, I commented because I think the service can actually help the author of the post. If my comment is in contrast with the forum policy, please let me know how can I modify it
Me and a friend had a discussion and the following question came up:
Is there a rental software with an app available who let's registered customer view availability, price and book their own stuff?
Like a sort of webshop-thing.
Seems like it would save a lot of work for clean dry rentals of consoles, dj-gear and so on.