RUFreeVPN
How to install VPN on iPhone
A practical guide to installing and checking VPN apps on iPhone.
Choose an app from App Store, review the developer, update history, ratings, and subscription terms, then allow the iOS VPN profile when prompted.
After first connection, check IP, DNS leak, speed, Telegram, YouTube, and behavior after locking the screen.
If the VPN disconnects in background, update the app and review iOS network settings.