Last iOS iPhone 5s will handle?

What will the last iOS that the iPhone 5s be able to run and/or how long will it be relevant? I know that the iPhone 4 stopped and one of the iOS 7 updates.

IPhone apps to beat procrastination?

Are there any apps that you can set to temporarily block other apps (like snapchat, instagram, messaging or gaming apps)? I know there are extensions for computers that you can download and use to block certain websites for a set amount of time so that you don't use them while doing homework. Is there anything like this for an iPhone?

How much will a new iPhone cost?

How much will a new iPhone cost? - 1

Added (1). My iPhone went through a wash cycle and now it doesn't work so I need a new one. I have a two year contract with Verizon, but there are no upgrades available. I also don't have insurance. How much would a new iPhone 6 cost me?

IPhone is destroyed and I can't get serial/IMEI or MEID number?

Ok so the screen on my iPhone is shattered and the bottom side is slightly bent due to the fact that when I got into the car the phone fell out my pocket as I was closing the door and got caught. I bought the phone unlocked and my services are with a non contract carrier (Metro PCS). So I now have a new iPhone coming because the one I have can't be fixed. So my last backup was like a month ago from the device not by computer. When the new iPhone comes in i'm going to switch my current number to the new iPhone. I couldn't retrieve the imei number from the phone but I found the sticker/ticket with the imei on it. So what else do they need to switch my phone number to the new phone and will I need the MEID/CDN also and if so how do I go by retrieving them if I can't access it through the phone?

Iphone 5s stuck on recovery mode?

I plugged my phone into my laptop and opened itunes and it said iphone in recovery mode and needs to be restored and updated. I clicked restore and update iphone and it took abou 2 minutes to extract files from the software. When it was done with tht, it said waiting on iphone and the apple logo appeared on the phone with the line underneath it. The problem is tht the line hasn't even started to fill up and its been at the same place for hours now… So what do i do? I've heard of tiny umbrella and fonepaw but i'm on my school's laptop and it won't let me download it unless i have the username and password for the admin, which i don't and i don't wanna do anything risky like going around the admin.

How to download free music on my IPhone for free?

So my friend has this app that s only for android and it's called simple MP3 pro and it downloads on your phone not the app! Is there any apps like that for iPhone or any way I can download music for free on my phone?!