Taiga App without GSF

Hi everybody,

I’ve a big problem with the taiga android-app. Because privacy matters to me I use android without GSF so I can’t use the “In App purchase”. (Beside that 50€ per year for self-hoster and private user seems to me like a joke but …)
So is there any way to use the taiga app (completely) on a GSF-free smartphone?

What about you, are you using the app, free or paid?

Thanks in advance