No reception in apartment, iphone app for making calls and texting through wi-fi?

I've got an iphone 5 with t-mobile, the apartment i live in gives me literally no reception at all. But as soon as i step out of it, i get an immidiate 3-4 bars, so I figured it's just my apartment. Does anyone know of any iphone apps that can use my phone number to make calls and text through wi-fi while still allowing me to keep my t- mobile service? So that i can still get calls and texts while in my apartment?

Do i get a macbook air or an iphone?

So for a graduation present my parents are willing to EITHER pay for a cell phone plan for an iphone(4s probably) OR pay half for a macbook air. I'm going to college so i need a laptop but i feel like it would be really useful to have on the go Wi-Fi too. If I get the iphone ill pay for a dell laptop or something less expensive myself. If i get the macbook air ill just stick with my current phone(has no internet/apps or anything fancy lol)

What to wear for amusement park?

Tomorrow for school band I'm going to Hersey park. I just have a few questions I need to ask. 1) do charter buses have places you can charge your phone? 2) do their bathrooms work good? 3) do they have wireless Internet? 4) how can I get around fast since we only have a short time in the park? 5) it's supposed to be 68 degrees so shorts or pants? 6) How should I wear my hair? 7) how to make iPhone and iPod battery level last a while?

My iphone doesn't have any storage left?

I have the iphone 4, and i have only 6.4 gb on it. I only have 4 apps on the phone, no music, barely any text messages, 120 photos, and i have NO more storage left. There's a huge bar in my itunes called 'other' filled with nothing and I don't know how to get rid of it or what to do. I just want to use my iphone like everyone else. Any suggestions? (I would really not like to do anything that might have to do with resetting my phone)

Should I put my screen protector on my iPhone 5 otterbox?

I just got my commuter otterbox case today and it came with a screen protector. But I don't know if I should put it on b/c I have two others cases. Should I put the screen protector on and keep it on even with my other cases? Or no?

Will a mirror screen protector hide the cracks on my iPhone?

So two days ago I was playing outside and I was checking the time on my iPhone and it fell on the street so the top half of the phone cracked, it didn't effect the phone at all except its hard to see with all these cracks and scratches on it and plus it looks stupid. So my friend told me if I buy a mirror screen protector or a reflective screen protector it will hide all cracks and scratches on my phone. So I'm asking is this true and will it work really good?

Straight talk data not working?

I bought a factory unlocked iphone 4s and a straight talk sim card. I put the card in, activated it, and i can call and text- but data won't work. I bought the $45/mo unlimited talk text and data

"Could not activate cellular data service - you are not subscribed to a cellular data service"

when i put the sim in i didn't change any apn settings or anything, i just went through the activation process for the sim card.

Added (1). Under settings >general > about, my carrier is specified as at&t 14.0

Iphone Help! Please Click! Click

I have a phone that's very useless, but I want to get a new one. I'm thinking about getting the IPhone 4 or 4s (whichever one is less expensive) But I'm currently in a contract with my other phone. I have a couple of questions to ask:

1.Is the IPhone 4 or 4s is less expensive.
2. If I get the IPhone will it cost money to get me out of my contract
3. If I even get the IPhone, will I need to get out of my contact
4. How much is the Iphone 4 and 4s

I really hope you can help, Thanks again!