UC Browser is not safe to use because it asks for the 193 different permission which is very high for any browser. One of the French security researchers found a lot of stuff about UC Browser. It sells all your data including contacts, Data, Phone details and almost all the stuff because you allow the permission to the browser. So, if you are using UC browser I highly recommend you to uninstall it right now. So, What are alternatives you can use instead of UC Browser? Well, I got ya, Here is the list of Powerful browser you can use instead of UC Browser.
#1. Firefox Browser
Firefox is the best alternative to the UC Browser. Mozilla Firefox is the best browser for Android smartphone. Firefox is the independent, people-first browser made by Mozilla, voted the Most Trusted Internet Company for Privacy. Upgrade today and join hundreds of millions who depend on Firefox for a more personal browsing experience.
It has download manager but it doesn't support the Video download from various sources like youtube so what you can do is download the extension from their store and you are good to go.
#2. Google Chrome
Indeed Google Chrome is one of the best browsers but you can't download the videos from youtube because it's against the Google policy. There is no extension support in mobile apps so you need to sacrifice video downloading from youtube.
#3. IDM / IDM+ (paid)
IDM is the best download manager to replace the UC Browser. You can copy the link from any other browser and just paste it here into the app and it will start downloading. It supports most of the feature like pause resume downloading so it's really nice to have all these features.
#4. Microsoft Edge
The best thing about this browser is it sync data across the various devices, all you have to do it login to your account in Microsoft edge in all of your device. Microsoft really makes a good app for android there are a bunch of features that I liked and would love to see them implement more on this app.
So, These are all the browser that I think best for you. These browsers are trusted and secure your data, unlike the UC Browser. Your data is more important than anything so care about your privacy and uninstall other browsers if you have, use only the one from trusted developers.