only 10 custom field in total - very disappointed

I purchased this app because it’s written you can add customized field but it was not specified the limit. So unfortunately, only 10 fields can be added to all categories (not 10 field per category, but 10 in total) which can be very frustrating when you pay 17€ and you need to create a personalised inventory. This is is unacceptable; for the other thing of the app…itt’s ok

8888989898 about Home Inventory, v3.1.1