MailShot - Email multiple recipients on iPad

I want to keep the contact list open for multiple email recipients when adding names on the list , but in the native mail app I have to clicking the + mark to do one at a time. Is that any app can do that?MailShot- Group Email Done Right! is useful app that lets you email groups of contacts directly from almost any app. With the app, you can create and email up to fifty different groups. Easily