This is a specialized wallet for monero, in general it is for use with this chain. The data is stored in the cell phone, however, the nodes and the blocks are connected remotely, since the queleta chain is not downloaded to the cell phone. It is a lightweight wallet.
It can be used on mobile devices with Android, it is open source and verifiable for any specialized users and who wants to perform a complete audit of this portfolio
They do not have good user support, it is also somewhat confusing when configuring as it is necessary to connect to a node, and doing so incorrectly may not synchronize.
In general, there are currently multiple portfolios that allow you to store several cryptocurrencies, which is an advantage in relation to this, because these are used for quick payments or transactions that are not very high. Many people do not consider storing large amounts in these types of wallets.