Mail Helper focuses on the practical gap that machine translation leaves behind in business correspondence. Rather than translating your sentence word for word, it takes your key points and intended tone and composes a fresh email that reads as though it was written by a native speaker of the target language. That distinction matters most for outreach, customer follow-ups and everyday office communication, where an awkward literal translation can undermine the whole message.
The app is organized around high-frequency scenarios. Office communication, customer development and marketing outreach each have tailored generation behaviour, so you do not have to hand-craft a prompt for every message. Multi-language support is the headline capability: the AI engine produces content in more than 20 languages, and you can also reply to a foreign-language email directly in your native language while choosing the tone you want the outgoing message to carry.
The published version is 4.1, and the app is free to download with in-app purchases for the Pro tier. Its maker emphasizes a privacy stance that content is never stored and uploaded data is used only to generate the email. It runs on iOS 15 or later, is localized into nine languages, and is aimed squarely at people who correspond regularly with colleagues, customers and partners abroad.
