What they don't make very clear when you are reading about EmailSignaturePro : you have to go into the signature app, choose a signature, then EmailSignaturePro (one million years later) will launch your mail app so you can send a message from within it. If you're replying, it's even more complicated. I should have trusted my instincts when I read all the bad reviews, but one guy said "Don't worry about the bad reviews," and I fell for it. I emailed the company about a refund, they directed me to Apple's no refund policy, I grew bitter for taking a risk on a slightly more price app (I skipped the free version, like an idiot, because I thought "Why would I want to email someone with an advertisement at the bottom of my message?"). Lousy experience that takes the fun out of app shopping. To be clear: they don't falsely advertise what EmailSignaturePro does, they just aren't straight forward in their description, and they shouldn't waste every one's time on an app that is irrelevant in it's journey to get around the Mail app. Just do something useful until Apple makes the Mail app more third party friendly, boys. Or go on vacation with our money.