Why should you use a Crypto Wallet app?

Why would someone want to use a Crypto Wallet app? Isn't it risky to store digital assets on a mobile device? Can I trust these apps to keep my information secure? Are there any benefits to using a Crypto Wallet app over traditional methods of storing cryptocurrency? How do I know which Crypto Wallet app is the best for my needs? Do I need to have technical knowledge to use one? And what happens if I lose my phone or it gets stolen - will I lose access to my funds? These are just a few questions that come to mind when considering the use of a Crypto Wallet app.