Avoid! After opening free account where you are not being presented any prices, You are getting invoices for 500sek (50 euro) every month even if you are not using their service.
This is our terrible experience in detials.
In our webshop we installed Mondido as a plug to have swish as a payment method. We made a test swish payment for 10 sek (1 euro) to verify if this is working. Mondido send us invoice for 500 sek as they have minimum invoice fee of 450 sek excluding VAT...

I reported this to them and asked for explanation, they mentioned that opening account if free but when we use it it has cost of minium 450 sek per month + % from each transaction. When I said where was it visible when opening account, they mentioned it is not visible when opening but it is written in their policies under prices and terms.

I as a business owner feel misled and used. I would never recommand this brand again to anyone