IPhone app that can send texts with another person's number?

I know there's an iPhone app that lets you make calls with another person's number. My ex in law called my sister with my mom's old phone number to trick her into Nswering his call. Now, is there an app that can let you text with someone else's number that you know? Maybe in cydia? I'm trying to prank somebody Lol

Pinger you can txt unlimited for free and watch videos to earn calling minutes you get your own number but picture messaging comes from a pinger email that is also provided

  • Why does my iPhone sometimes send texts to other iPhones as iMessages then regular texts to iPhones? Like when I send a text to my friend that has an iphone, it usually sends as an iMessage then it will randomly send as just a regular text and it will be green and not blue.
  • When you block a number on an iPhone, what will show up when that person texts you? I gave someone my number and I want to block them because I don't know them very well. However, I don't want to seem mean, so what will happen when that person texts me? Will it say, "Number not available" or will it send but I just won't receive it?
  • One person can't receive my texts? One person who has AT&T can't receive my texts but I can receive hers. I have t mobile iphone 4. Everyone else gets my messages except her. She went to her carrier and AT&T said the problem was on my end. I went to t mobile and got a new SIM card but she still isn't receiving my messages. What do I do? Has this happened to anyone else?
  • My phone won't send an iMessage to a person with another iPhone when it used to? Ok so me and this person text and we rely off iMessage cuz we both live over seas and iMessage used to be fine for both of us but now for her phone it keeps sending texts and it's costing me a lot of money. I have all my settings on and stuff and I can send iMessages to other people but to her it keeps sending them as a text when me and her clearly can iMessage cuz we both have iPhones. I don't know what to do and it's costing a ton of money for me, and prolly her!