Grammar Check, Corrector: Frex

Matlub Yazılım A.Ş.

Contains adsIn-app purchases

About this app

Write with confidence—anywhere.
Frex is an AI-powered grammar checker, spell checker, summarizer and tone-aware paraphraser designed for students, professionals and content creators. Correct errors, refine style, and instantly shorten or rephrase text while preserving your unique voice.

How Frex works
Real-time analysis – Every word is scanned for grammar, spelling, punctuation and style issues.

AI suggestions – Context-aware rewrites improve clarity, formality or creativity.

One-tap apply – Accept individual fixes or improve the whole passage at once.

Key features
Grammar & Spell Check – Detect and correct mistakes in emails, essays or social posts.

Smart Summarize – Condense long paragraphs into clear bullet points or short abstracts.

Tone-Based Paraphrase – Rephrase sentences as formal, friendly, concise and more.

Vocabulary Boost – Tap to replace basic words with stronger synonyms.

Advanced Punctuation – Commas, apostrophes and colons placed exactly where they belong.

Proofreader Explanations – Brief notes show why a change was suggested, helping you learn.

40 + language support
Frex understands and improves writing in more than forty languages, including:
English, Turkish, Spanish, French, German, Portuguese, Italian, Arabic, Russian, Chinese (Simplified & Traditional), Japanese, Korean, Hindi, Bengali, Indonesian, Malay, Vietnamese, Thai, Tagalog, Polish, Dutch, Swedish, Danish, Norwegian, Finnish, Greek, Czech, Slovak, Hungarian, Romanian, Bulgarian, Croatian, Serbian, Ukrainian, Hebrew, Persian and Urdu—plus many more regional languages.

Use Frex everywhere
Academic papers, résumés and professional reports

Workplace chat, project documentation and customer emails

Social media captions, blogs and creative writing

Everyday messaging where flawless spelling matters

Go further with Frex Premium
Unlock deeper style guidance, expanded tone options, vocabulary enrichment and priority processing for large documents.

Privacy you can trust
All text is processed with strict encryption. Content is never sold or used to train unrelated models. For details, read our in-app Privacy Policy and Terms of Service.

Ratings and reviews

This app is not working properly. I had already paid for this app and after using it for once, it's not opening again. Kindly fix this problem as soon as possible.

Frex is awesome! I use it to translate between French and English. Frex used more casual language in its translations that you would actually hear in the other language, instead of other translators that use overly formal or simplified language. I'm learning a whole new level of the language with Frex.

very good English language correction app. It has change d my whole life. Thank you for inventing such a great app.