You can strengthen the security of your iPhone by installing an app with a range of protection features like Avira Mobile Security for iOS. The VPN offers bank-grade security to encrypt your iPhone’s online traffic, protecting your transactions and confidential communications even when surfing on unsecured public Wi-Fi hotspots. The anti-theft tools will help you find your device if it ever gets lost or stolen, and the device scanner will show you all the devices connected to your home network. In addition to the free app’s many other features, the premium version also includes web protection for safer browsing and identity protection that checks your email account for security breaches.