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To download 1Checker from the Mac App Store, you need a Mac with OS X 10.6.6 or later. Learn More.


By Greedy Intelligence Ltd.

Open the Mac App Store to buy and download apps.


1Checker, the best free grammar checker, allows you to instantly check texts for various mistakes and offers you improvement suggestions for writing better English.
Powered by Artificial Intelligence (AI) and Natural Language Processing (NLP) technologies, 1Checker is an ideal writing enhancement tool with spelling check, grammar check, style review, vocabulary enrichment, dictionary, translation and more this-is-exactly-what-I-want benefits all packed in one.

What's New in Version 2.1.6

Compile with Facebook's upgrade to enable Facebook account log-in.


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Customer Reviews

Big Mistake

How is it possible that the application finds nothing wrong with this sentence:

"I was just thinking; that you; I should be more thoughtfully; when using; this application; it does not seem to detect many errors; “

This app thinks I am a great writer, maybe a novelist…
Two stars for now.
Proceed with caution.

Bad grammer check.

It misses a lot, and doesn’t seem to find grammer issues. Analyze times takes a long time. © Greedy Intelligence Ltd

View in Mac App Store
  • Free
  • Category: Productivity
  • Updated:
  • Version: 2.1.6
  • Size: 20.7 MB
  • Language: English
  • Seller:

Compatibility: OS X 10.7 or later, 64-bit processor

Customer Ratings

Current Version:
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