I had never heard about this app. I thought the era of advertisements taking over the lock screen ended back in the Android 4.x days!
replyBut also, thinking from the business perspective, it's difficult to make phones meet such a low price point without either significantly compromising their performance or stuffing them full of ads to subsidize the price.
I assumed it did something like that, but I honestly don't even know what it actually does, because the moment it gets loaded or anything like that the phone locks up and has to be manually reset using an obscure power button combination.
replyTo add insult to injury it re-installs the app if you remove it and re-enables the app if you disable it. This is done by the carrier/mfg specific application which cannot be removed.