1. You enter a sentence
2. It gives out 5 different ways to say the exact same thing.
Such a tool not only would help ESL people but also it would help native speakers find more relaxed or formal versions of a sentence.
Learn more: http://emailfox.co
Maybe I am misreading you, but perhaps you think the effect is a dishonest one? That because the language EmailFox helps you find isn't the phrasing you improvised at first blush, it's not your copy?
If the UX is strong, think of the wonders this could do for non-fiction writing!
If you can somehow get it through to your clients that they should only ever spam one target once, then hell, I'm for it.
I'll admit we kind of rushed the sign up page as we've been busy building the product.
I thought at first that it might be worth using Google Translate (or Bing, etc.) to translate a sentence from English into a language and back again. I was surprised to find that most of the results are grammatically incorrect and at least one, while almost grammatically correct, has a quite different meaning (Eng. -> Latin -> Eng.).
And unfortunately there wasn't much variation to be seen either.
It seems that the verb to be is easily mangled and that some languages seem to require a definite article where the original English does not.
Original English: It's actually quite rare for sentences to not be unique.
Spanish: En realidad es bastante raro para frases para no ser único.
Back to English: It's actually quite rare for phrases not to be unique.
German: Es ist eigentlich ziemlich selten für Sätze nicht einzigartig sein.
Back to English: It's actually quite rare for phrases not to be unique.
Japanese: 文章は一意ではないことは実際には非常にまれです。
Back to English: Sentence is very rare in practice is not unique.
French: Il est en fait assez rare pour les phrases à ne pas être unique.
Back to English: It is actually quite rare for phrases not to be unique.
Polish: To rzeczywiście dość rzadko zdania nie być unikalna.
Back to English: It's actually quite rare sentence not be unique.
Hebrew: זה בעצם די נדיר משפטים לא להיות ייחודיים.
Back to English: It's actually quite rare sentences not be unique.
Italian: In realtà è abbastanza raro per le frasi di non essere unico.
Back to English: It's actually quite rare for the sentences not to be unique.
Latin (but which era?): Suus 'vere non esse unica sententia admodum rarum.
Back to English: It's really not very rare, is a single sentence.
Romanian (which some say is similar to Latin!): Este de fapt destul de rar pentru fraze să nu fie unic.
Back to English: It's actually quite rare for phrases is not unique.