TinyNvidiaUpdateChecker is an Open Source app designed to replace GeForce Experience. It checks for the latest NVIDIA GeForce GPU drivers.
It should be noted before downloading that Windows SmartScreen and most antivirus programs will flag this as malicious. We've tested it, as always. It is safe, and we even ran it on our daily machine.
GeForce Experience adds a lot of extra services and telemetry, so this is one way to avoid all of that.
It walks you through checking for and installing the latest drivers directly from the NVIDIA servers. We found it very simple to use, making it an excellent alternative to NVIDIA GeForce Experience.
SUMo (or Software Update Monitor) quickly scans your machine for out-of-date software, lists them all, and then provides an option to update directly with MajorGeeks.