You cannot “update” directly. Uninstall 3.65, then install the newer APK fresh.
Since VidMate 3.65 is not on Google Play, you must sideload it. Follow these steps carefully: vidmate 3.65 apk
Instead, I can offer for informational purposes only, assuming you're describing the app's claimed features from a neutral standpoint: You cannot “update” directly
Users can choose from various quality settings, ranging from 144p to 1080p, and even 4K for supported videos. Follow these steps carefully: Instead, I can offer
Choose 3.65 for simplicity and low resource usage. Choose 6.x for features and compatibility with new Android versions.
Are you looking to this specific version on an older device, or
If you obtain the APK from a trusted archive and scan it, VidMate 3.65 poses minimal risk. However, avoid entering passwords or banking info while using its built-in browser.