Is this a normal heart rate?

I used this iPhone app that supposedly can check your heart rate by having you put the tip of your finger on the camera lens and it said my heart rate was 88bpm. I don't know how accurate this is but if it is, I'm 18, 5'4" and weigh 145. Is this an okay number? I heard 60-99 is normal range for resting bpm but I just wanna make sure…

Why are iPhones so popular even though they really aren't very good phones?

IPhones are absolutely garbage. Apple makes a new phone by… Adding an S to the end of it? Seriously? The IOS 7 overhaul destroyed my relations with Apple, Tim Cook basically just spat on Steve Jobs' grave! That's not what he wanted! Let's look at the iPhone timeline, shall we?

iPhone
iPhone 3G
iPhone 3GS
iPhone 4
iPhone 4S (Notice a pattern here?)
iPhone 5
iPhone 5C (A MAJOR difference! Let's add a C and colorful plastic cases!"
iPhone 5S
iPhone 6
iPhone 6S
And the soon to be mentioned iPhone 7. And after that? IPhone 7S. No creativity or innovation at all. Long live Android!

Radio tuner app for iphone 6?

I workout at the gym often and see that the tv's have audio tuned in to different radio channels, though I can't find any (free) radio tuner apps that let me manually program to those channels.

Any apps anybody knows about for iPhone 6 that does radio frequencies?

How to stop getting robo calls?

I'm constantly bombarded by robo calls. I never answer and block the number after the calls goes to voicemail, only to have different numbers call me the next day. I've had my phone (it's an iPhone) on do not disturb except for my contacts and I'm still getting these calls! How do I make them stop?

Added (1). *I forgot to add in that I registered my number with the Do Not Call registry months ago. I've made several complaints to no avail.

I can get texts, but the other person isn't getting mine?

I have a Samsung Galaxy S5, the person who I mainly text (iPhone 4) isn't getting my texts, but I can get theirs.

i can text anyone else and it works though. It's been happening for about 3 days now. It says that they re being sent, but the other person isn't getting them.

Should i use a duffel bag or small suitcase as my carry on?

I'm going to visit a friend and i'm not sure if i should use a medium sized duffel bag or a small cuitcase as my carry on/main luggage. I'd be putting my basic stuff in it like clothes, makeup (the liquid would obviously go in the bag of liquids with my other stuff like hair spray, shampoo, etc) & maybe a pair of flip flops (i'm wearing slip on shoes in the airport). All of my important things like documents, ipod, iphone, chargers, etc will go in my personal item/small backpack.