Can't update License or login on iPhone

Help
1

I’m stuck and tried everything.
If I login to missions on the web interface, everything is there. I can’t find my missions on the IOS app.

If I try to export on the web I receive a message that I need a valid license.

How do I update/pay for my account?

Thank you

2

Looks like you were using the iOS Beta version. This is no longer supported so you have to buy Litchi from the Apple’s app store.

3

Thank you for taking the time to reply. I was using the beta version yes. And, I am happy to pay for the app again, however, when I go to the iOS store, there’s no option to pay for it. I can only download it.

How can I pay and upgrade my license? Thank you.

4