I will say yes it is safe to invest in Bitcoin through.
I have never used this app personally. Having recently read the information in the review on on of the websites -
https://websetnet.net/ru/cash-app-review-the-easiest-way-to-send-and-receive-money/ that for transactions via ATM machines there are limitations in time, for 250$ it will take 24 hours, for 1000$ - a week, and 1250$ - a month. Is it really so? Or not? And if yes, what does it mean? I was really confused to read such an information.