Premium VPNs with native iOS apps are designed to minimize battery and data use. However, some impact is inevitable with all iOS apps and low-quality VPNs can increase battery drain up to 20%.
Here are some ways to minimize your mobile data and battery consumption while using a VPN:
Connect only when necessary. To lower your data consumption, only use a VPN when you’re accessing sensitive data like on banking apps and email accounts.
Switch to a light protocol such as WireGuard. Audited for safety and lightweight, WireGuard uses up minimal battery power on iOS.
Use a VPN with a battery-friendly mode. CyberGhost’s Battery Saver option disconnects the VPN when your screen is off.
Install the VPN on your router. This protects all the iOS devices connected to your home network without you having to run a battery-draining app.