The Solar app is a non-custodial wallet, which means it's the responsibility of the user to keep the private key on their device.

You can also create multiple accounts with the same public key. For example, if you wanted to create a separate account for each of your family members, you could create a multi-sig account with the private key for each of them.

What are the advantages of having a non-custodial wallet?

A non-custodial wallet is secure, so you don't have to trust the service to keep your funds safe. It's the responsibility of the user to make sure that their private key is not compromised.

It's easy to use and can be set up in a few minutes. It also supports multiple languages.