Blog · 14 oct 2026

What is nonolingo? A Mac app that fixes your English where you type

By the nonolingo team · Last updated

You just saw the name nonolingo and want to know what it is before you download anything.

Short answer: nonolingo is a Mac app that fixes your English inside the text box you are already typing in, such as Slack or Gmail. It offers a light fix that keeps your words, or a native rewrite when a sentence sounds translated. Press Tab to accept, Esc to keep yours. It is not a language course.

Slack · #client-project
I will revert you soon.I'll get back to you soon.
NativeI'll get back to you soon.Tab
What nonolingo does, right in the box you're typing in

Who it is for

People who write work English every day but think in another language, such as Vietnamese, Korean or Spanish. Your grammar is fine. The sentence just sometimes sounds translated. See why literal translation sounds off.

How it works

  1. You type in any text box you can click into.
  2. nonolingo shows a suggestion right under the box: a light fix that keeps your words, or a native rewrite that keeps your meaning and changes the tone. You can also type in Vietnamese, Korean or Spanish and get English, or select a message to get reply drafts.
  3. Press Tab to accept, Esc to keep yours. nonolingo never sends a message for you.

More in the mode guide and the shortcuts guide.

Platforms and requirements

Pricing

Every new install gets 7 days with everything on, no card and no sign-up, then a free allowance every day after that. Pro is optional and nothing renews by itself. Current prices live only on the pricing page.

Privacy in short

The text you ask nonolingo to fix is sent over an encrypted HTTPS connection to nonolingo's server and on to a third-party AI model provider to generate the suggestion. A few recent messages from the chat can be sent as context, and you can turn that off in settings. Per the policy, nonolingo does not sell your data, does not track your browsing, does not use your messages to train models and does not keep your text after the suggestion is made. Full privacy policy.

nonolingo is not Duolingo

nonolingo is not a language course: no lessons, no streaks, and it is not related to Duolingo. The name also sounds a bit like some other tools, so when you search, look for the domain nonolingo.com. If you want to learn English step by step, use a course or a tutor, then read nonolingo hay app học tiếng Anh for how to use both, or compare nonolingo with other tools.

Official links

One small tool, in the box you are already typing in.

Questions people ask

What is nonolingo?

nonolingo is a Mac app that works inside the text box you are already typing in, such as Slack, Gmail, Telegram or Zalo. It offers a light fix that keeps your words, or a native rewrite when the sentence still sounds translated. You press Tab to accept a suggestion and Esc to keep your own version. It is Mac only.

Is nonolingo free?

Every new install gets 7 days with everything on, with no card and no sign-up, then a free allowance every day after that. Pro is optional and nothing renews by itself. Current prices live only on the pricing page, so you always see the latest numbers in one place.

Is nonolingo the same as Duolingo?

No. nonolingo is not a language course and it is not related to Duolingo. It fixes the English you are typing right now on a Mac, rather than teaching lessons. If you want to learn step by step, use a course or a tutor. Many people use both. See nonolingo alternatives for how it compares with other tools.

Does nonolingo read what I type?

nonolingo sends only the text you ask it to fix, plus a few recent chat messages as context if you leave that on, over HTTPS to generate the suggestion. Per the privacy policy, it does not sell your data, track your browsing, or keep your text after the suggestion is made. You can turn chat context off in settings.

● Real recording of the app, not a mockup
Try it where you type. nonolingo is a Mac app: a light fix or a native rewrite, right in Slack, Gmail, Telegram, Zalo and more. Select a message to get reply drafts. Press Tab to take a suggestion, Esc to keep yours. 7 days free, then free every day, forever. Download for Mac →