In the Finary app menu, if you click Manage My Subscription, you may see the following message:
"You subscribed via another platform. Your subscription can only be managed from there."
This means that either:
you currently have a free subscription as part of the referral program, or
you subscribed via our web version
If you subscribed via our web version, Apple and Google do not allow you to manage your subscription from the app. You will need to log in to the web version to manage your subscription there.