Is there any (iPhone) apps that will send Wi-Fi texts from your phone number?

I get pore service at my house I know there's lots of Wi-Fi texting apps for the iPhone but I want one that will send and receive from my same phone number.

Whatsapp but the other person needs to have that sorry but i think you need service to use your number maybe get a new sim with better coverage just transfer your old number

Any texting app really should just use your iPhones phone number. If it doesn't then I think you can turn off 3G and it will automatically text through Wi-Fi if you're hooked up to it without using another texting app than the installed 'messages'.