Regardless of the legitimacy of the app, it is unwise to be dependent on Google for your entire infrastructure. They do and have shutdown entire accounts with no information, feedback or appeals.

I'm overly dependent on them currently myself.

We had a recent issue in accounting where an unaccounted for charge kept hitting billing from Google LLC. As we use and sell Google Suite, run a few million in Google ads and have limited cloud services we assumed the error was on our side. I audit all google ads looking for appropriate matches and then call Google Ad support, which was helpful and able to confirm the charges were not in any way related to Ads ( billing prefix suggested it was not but frequency aligned with how ads bill so was the most likely candidate)

They could not tell us what it was for or what "google llc" is

A google search for the prefix identified it as what is used for Google Play.

That is the one service that has no legitimate uses on our corporate card.

Contacting Google play about the charges and asking for clarification and disputing was not difficult.

They have an internal review period. I think 5-7 days, the review came back as. Legitimate charges. Ok, what for? They can't tell us.

What?

These were multiple charges of $500 adding up to nearly 5k in a month, but they can't match the charge to a service?

And with several million in yearly spending with Google, one would hope for a little more response time and explanation, but, that's chump change to them.

I will still be using every service, but I definitely would invite some alternatives as It is unwise to depend on Google for anything.