It is commonly believed that VPN apps can actually use up more battery power as they require constant data encryption and decryption. However, some users have reported that VPN apps like NordVPN, Private Internet Access, and ExpressVPN have better battery-saving features compared to others. Ultimately, the impact on battery life may vary depending on the specific app and how it is used. It's advisable to monitor your battery usage when using a VPN app and consider adjusting your settings if necessary.
