Great, picked up the car information very quickly, and very easy to use. It couldn't recognise my email address at all for the digital receipt, but you get a transaction reference so I just took a screen shot. Would be 5* if they sort out the email address issue.
There is a critical bug which makes this app useless. Journeys count definitely SHOULD start with 1 not 2. Also this app is incompatible with Android 7. Can you guess then if it was ever updated )
Did not have the option when opening the app to register the rental car and resulted in me forgetting to pay the toll. Would have liked the function of the app reminding me that it still needed to be done and that I've already been through rather than just paying and pre-paying for future journeys. Otherwise the app does work as a method of paying and invoicing.
When I opened the app it found my car very fast. But when I moved on to select how many journeys I wanted it started on 2. I tried to move it back to 1 but it wouldn't let me it would only let me add more journeys. So until this is fixed I won't be using the app.
I think the idea is ok but you published an incomplete app. I would suggest removing the digital receipt option until it is functional. It claims email address is not valid. That is a very important part of the record keeping process and for an app to claim that my email address is invalid just makes no sense. I tried several email addresses and your app still could not validate them. That means you need to fix it and test then you can update the application. It's a simple fix that you should be able to do in a short time. If you can't do it please pay someone who can. If you consult wisely you will get the help you need.
Went to pay my toll today in the service station, was informed that the toll paying service was down my only option was to call the number or use the app. Never knew there was an App , downloaded the app in play store reviews were poor so I was unsure. Took a chance downloaded the app and made payment in less than 2 mins , couldn't of been easier and a confirmation receipt was sent to my email address. What there was to complain about I'll never know. Could not of been more Easy .