Problem of free tier is just to entice devs in the hope that one of them likes the infrastructure and works at a whale
If you use the free tier too much they close it because you used it too much and exceeded their fair use policy
If instead you don't use it enough, they close it for inactivity







Your approach is wrong.
You change apps because the devs don't want to bow to Google, while it's the opposite that needs to be done.
Just set your phone to skip this "verification" bullshit, in this way Google can see from the telemetry that the 0.01% of users disagree with their policy