What happened to the Facebook app?

My sister can't use the Facebook app on her phone because it messes up her phone it freezes it. She said it's not fir everybody else can use it. I wish they leave the Internet alone and quit updating apps and stuff every week to where people can't use them. All her other apps work but that. We use Samsung she's not getting an iPhone we hate apple. What happened to it? Why is it freezing her phone?

What size storage iPad do you have?

I know if you download a lot of movies or entertainment, you should get a larger size. So i'm asking what size you have, and what function you use it for? Did you get it new or used, Wi-Fi only or with cellular? I would only get it Wi-Fi, as i still have an iPhone if i need to use any cellular activity.

what size screen did you get too? For watching TV and movies, is 10" a good size for one person? I was looking at getting the 256 GB option ipad pro.

If I update my phone, will I lose certain apps that are no longer available in the App Store?

I have been avoiding updating my iPhone 6s because of the news that updating your does make your phone slower. But there's this app I'm thinking of downloading but would need to update to do so.
My only issue is that I have some apps that I use regularly that are no longer available in the updated app stores.
So my question is, if I was to update, would these apps be deleted? Or will they be uneffected?

Is there anyway to unlock an iCloud locked iPhone?

I got screwed on a letgo deal purchased an iPhone and it turns out that it's activation locked I messaged the person back asking for the id and password and they blocked me so they obviously intentionally screwed me over is there anyway I can unlock the phone without the id & password?

Is this a good deal and can I afford it?

$199 for an iPhone 6 and a $35 a month plan with unlimited talk and text but 5GB data? I make about $500 a month and I don't have other bills but I'm trying to save for an apartment and college. Also, I might need to start buying my own groceries soon.