I installed the app, because I could not find any good app that works without phone numbers. But the pricing of this app is more expensive than a sim license with eg the signal app. Searched for a cheaper safe option and went for a prepaid Sim for 4,99 euro once. I really would have bought this app if it was a one off payment for eg a couple of euro per account, but current pricing per account is crazy high and higher than a sim license per month.
So I went for prepaid sim with the signal app under our control. She now also can integrate with family members way cheaper and ready to create her network also for later use. Thx for the nice App, I love it, but the price broke my further interest that made me searching for an alternative cheaper and also safe option. No commercial use and commercial things I need to skip all the time when I do not want an expensive license.