Are there any good Wi-Fi hacking apps?

Okay, I have NO idea what the hell the password is to my Wi-Fi. When I try to connect to a network, there's like three or four to choose from, all requiring passwords. We have a computer and I'm pretty sure we have a router (otherwise I wouldn't be on the internet via computer). I have limited data on my network plan, so I can't get on Facebook or Instagram or anything like that without eating up my three gigs. I hate using my computer because it runs so unbelievably slow. I have the iPhone 4. Thats it- just the 4. It isn't jailbroken and most of the Wi-Fi hacking apps require that your phone is jailbroken in order for the app to fulfill its purpose. Is there any good apps out there that will somehow hack and/or generate a password for me to get in? I'm 15, of course I'm gonna worry about this sort of ****. Anything will help.

You need to have a PC or laptop connected to your router using an Ethernet cable. On the PC open the network connections. You can normally get to the network connections by right clicking on the icon for the network at the bottom right of your screen. Look for the Gateway address - this is the address of your router. Enter this address into your browser (Internet Explorer or other browser). You will need a password to logon to the router. If the password has not been changed it should be on the router's label or in the manual.

When you are logged on, you should find the details about your wireless network - its name and its encryption key - in the wireless section of the router's configuration pages.

Since it is your home router, why not ask the other family members what the Wireless access parameters are? Someone installed and should have recorded the information. If no one remembers consider resetting to factory default and starting over.

No, obviously its more secure then just using an app and posting on a messageboard.