I started using this wallet about a month ago. At first, it seemed to me that this was a mediocre service for buying and exchanging crypto-currencies, but after a while, I discovered that this is a full-fledged banking, with the ability to manage not only crypto but also traditional currencies. This is very convenient when I can open an iban account and still have several cryptocurrencies inside one application. The application works quite quickly, the interface is quite minimalistic, but at the same time quite functional. About a week ago, I contacted technical support, the answer was quite fast and succinct, which helped to solve my problem. Among other things, this service allows you to store funds in both hot and cold wallets, which in turn makes it possible to manage risks. At the moment, I'm not going to completely switch to quppy, because I need more time to test this application. However, if everything goes well, then the number of crypto applications on my phone will greatly decrease.