I Got an photography app is limited free, later on do i still have to pay it?

I have a iphone 5,
and i'm really into photography. So there's an app in instagram that person tells us the good quality of what kinda of photography apps. So that person always upload a photo and put a caption oh this photography app is limited free you better get your limited free app today, and other free photography that are NOT limited free just free.
So i'm curious if its limited free and i got the app… But its suppose to be like 0.99 or i don't know.
do i pay it or not? When it was limited free i got it, i told my friends about the photography app they say its not limited free anymore.
i know my bad english, please answer me quickly.

My twitter says lost password?

So I went on twitter (on my iPhone app) and this thing popped up saying I needed to validate my password so I entered it and it said that my password was wrong. So I entered it again and again and I've probably done it at least 10 times. I didn't forget it I'm positive because all my passwords for everything are the same. I did it really slow too to make sure I didn't put it in wrong. Then I clicked forgot password and it asked for my email or username so I typed it in and it said nothing was found for that email. And I also tried my user name and it didn't work. I don't know what's wrong or how to fix it, has this happened to you?

I forgot my IPhone password! - 2

I forgot my iPhone password and now I can't access it. Is there anyway where I can fix it without losing everything on my phone? I really love my phone, and I don't want to lose all of my stuff.

Is there a keyboard app for iPhone?

I have an iPhone 5 and switched over from the galaxy s4, and had the iPhone 4S prior to that. As many iphone users would know I was Syked to have my emoji keyboard with ios emoji back! However I'm missing the keyboard choices I had with my galaxy. My question is, are there any apps paid or free that add an extra keyboard to your iphone, like emoji keyboard apps. Because seeing there are emoji apps enabling that keyboard there should be an app allowing a new keyboard. I heard that seeing apple has to approve of all apps that they will not allow a new keyboard seeing it is too customizable but I don't really know.

How to change your Tumblr blog on an iPhone?

Someone please help me! I'm on my phone and I want to change my blog for untitled I can't find anywhere on my tumblr where to do it. There isn't an edit and under setting there's nothing about editing anything!

What happens when I delete an iCloud account from my iPhone?

Recently, I just found out that my dad and I shared the same iCloud account on my phone and I really want to have my own privacy so if I delete my iCloud account, would that also delete the photos, apps, etc that was already stored on iCloud from my phone?