# Grammar Checker & AI Keyboard — Plagiarism & Text Humanizer

> AI-powered English grammar checker, sentence corrector, and plagiarism tool. (iPhone/iPad app by INVENTO ONE PRIVATE LIMITED.)

- Source: https://appshunter.io/ios/app/grammar-checker-and-ai-keyboard/id6448904682 (this page in markdown: same URL + `.md`)
- Developer: [INVENTO ONE PRIVATE LIMITED](https://appshunter.io/developer/1601427564)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Rating: 4.70/5 from 2,319 App Store ratings · 131 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.0 · 222 MB
- Languages: Korean, Greek, Dutch, Danish, German (Germany), Russian, Vietnamese, Norwegian Bokmål, Swedish, European Spanish and 18 more
- Released: 2023-05-30
- Data updated: 2026-08-31
- Monetization: subscription
- User reviews in markdown: https://appshunter.io/ios/app/grammar-checker-and-ai-keyboard/id6448904682/reviews.md

## What is Grammar Checker & AI Keyboard?

Write Professional English with Confidence

Need to write clear, professional English for work?
iGrammar is an AI-powered writing assistant designed for professionals who communicate in English everyday. Whether you're writing emails, replying to customers, sending Slack messages, or preparing reports, iGrammar helps you communicate clearly, confidently, and professionally.
Correct grammar, spelling, punctuation, rewrite unclear sentences, adjust your tone, translate text, summarize documents, scan text with your camera, upload files, and apply One-Tap Correction—all in one AI writing assistant. Save time, avoid costly mistakes, and make every message count.

iGrammar Frequently Asked Questions
Can AI help me fix grammar mistakes?
Yes. iGrammar’s AI Grammar Checker identifies grammar, spelling, punctuation, word-choice, and sentence-structure issues. It provides clear corrections to help make your writing accurate, natural, and easy to understand.

Can iGrammar correct all my writing mistakes in one tap?
Yes. With iGrammar’s One-Tap Correction feature, you can identify and correct grammar, spelling, punctuation, and sentence errors instantly. Instead of fixing each mistake individually, you can apply the suggested corrections with a single tap.

Can I use One-Tap Correction while typing in other apps?
Yes. The iGrammar Keyboard helps you check and correct your writing while using supported messaging, email, workplace, and social media apps. One-Tap Correction makes it easier to fix multiple mistakes without editing every word manually.

How can I improve my English writing?
iGrammar provides instant feedback and several AI writing tools. You can use the Grammar Checker to correct mistakes, Improve Text to strengthen your writing, the Paraphrasing Tool to rewrite unclear sentences, and the Tone Changer to match your message to the right audience.

Is iGrammar helpful for non-native English speakers?
Yes. iGrammar helps English learners correct grammar, improve sentence structure, replace unnatural phrases, and find clearer ways to express their ideas. Translation, paraphrasing, tone adjustment, and grammar correction can make English communication easier and more confident.

Is iGrammar useful for native English speakers?
Yes. Native English speakers can also make typos, miss punctuation errors, repeat words, or write unclear sentences. iGrammar helps polish emails, reports, assignments, social media posts, and everyday messages.

Can iGrammar check grammar, spelling, and punctuation?
Yes. iGrammar checks your text for grammar errors, misspelled words, punctuation problems, confusing word choices, and sentence-structure issues. You can review the suggestions or use One-Tap Correction to apply the improvements quickly.

Can iGrammar proofread my writing?
Yes. iGrammar reviews your text for grammar, spelling, punctuation, awkward wording, and readability issues. You can use it to proofread emails, essays, reports, articles, professional documents, and everyday messages.

Can iGrammar rewrite awkward or unclear sentences?
Yes. The Paraphrasing and Improve Text tools can rewrite awkward, repetitive, or unclear sentences while preserving your intended meaning. They help improve sentence flow, clarity, and readability.

Download English Grammar Check: Writing NOW, and upgrade your english grammar which will act as your sentence corrector, plagiarism checker, humaniser, spell check, document editor and punctuation checker.

Weekly : 1 week subscription price: 9.99 $, with a 3-day trial
Yearly  :  1 year subscription price: 39.99 $, with a 3-day trial

Subscription automatically renews unless auto-renew is turned off 24 hours before the end of current period. You can turn off the auto-renew subscription from iPhone setting.

Privacy-policy: https://inventoone.com/info/f/privacy-policy-grammar-checker-app
Terms-of-services: https://inventoone.com/info/f/terms-of-services---grammar-checker-app

## Key features

- Grammar correction
- Sentence correction
- Plagiarism checker
- Spell check
- Punctuation checker
- Vocabulary enhancement
- Document editing

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Weekly Subscription | $14.99 | per 7 days |
| Grammar premium | $55.00 | per year |
| Weekly Subscription | $11.99 | per 7 days |
| Grammar premium | $29.99 | per year |
| Weekly Subscription | $10.99 | per 7 days |
| Grammar premium | $24.99 | per year |
| Monthly Subscription | $19.99 | per month |
| Weekly Subscription | $9.99 | per 7 days |
| Grammar premium | $24.99 | per year |
| Weekly Subscription | $6.99 | per 7 days |
| Monthly Subscription | $4.99 | per month |
| weekly Premium | $4.99 | per 7 days |
| Monthly Subscription | $9.99 | per month |
| Yearly Subscription | $39.99 | per year |
| Grammar premium | $19.99 | per year |
| Grammar premium | $39.99 | per year |
| Monthly Subscription | $12.99 | per month |
| Weekly Subscription | $6.99 | per 7 days |
| Monthly Subscription | $4.99 | per month |
| Yearly Subscription | $39.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Premium | $99.99 | one-time |


## What do users think of Grammar Checker & AI Keyboard?

Overall sentiment: positive

**Pros**

- 👍 Easy to use
- 🚀 Helpful in improving writing
- 💡 Useful grammar and spelling corrections
- 🤖 Accurate and reliable
- 🎨 Tone changer feature

**Cons**

- 🐛 Occasional bugs and glitches
- 💰 Subscription cost concerns
- ⏱️ Slow performance at times
- 🤖 Inconsistent correction suggestions

**Commonly reported bugs**

- Incorrect word replacements
- Freezing or crashing issues
- Inability to see or copy corrections

**Most requested features**

- Yearly subscription option
- Improved customer support responsiveness
- More customization options
- Integration with additional platforms

## Recent user reviews (10 of 131)

All indexed reviews: https://appshunter.io/ios/app/grammar-checker-and-ai-keyboard/id6448904682/reviews.md

### 5/5 — Journal

*2026-08-22, version 4.52*

Email

### 5/5 — ArabStor Ricchie

*2026-08-07, version 4.50*

%100

### 5/5 — Tradutor

*2026-07-29*

Sou do Brasil de linguagem portuguesa, mas esse app vive mudando a língua para inglês me atrapalhando. Quando consigo é perfeito, mas na maioria das vezes me atrapalha

### 5/5 — Best thing for a author

*2026-07-12, version 4.48*

It literally helped me so much especially since I’m a young author it helped and you may have to pay but it’s worth it!

### 5/5 — Myself

*2026-07-10, version 4.48*

Love it

### 4/5 — Does the Job, Mostly

*2026-07-09, version 4.48*

This app is great for grammar, punctuation, capitalization and editing, its paraphrasing feature is decent and quick, over all worth the few bucks a month for someone who writes on the go, now if they could expand the word count that would be awesome

### 5/5 — Extremely useful

*2026-07-07, version 4.48*

Love it

### 5/5 — Problems?

*2026-07-07, version 4.48*

I’ve been using this app for a couple of months and it worked well. Now I’m getting error reports and no way to fix it. The app is a bit pricey to have to worry about errors and not working right when I need it to. Please fix it or I’m going to cancel my subscription. You should also refund my money from the date I submitted my complaint (6/1/25).

### 5/5 — This is incredible

*2026-07-04*

It’s making me write like a professional

### 5/5 — Simpy the best

*2026-06-28, version 4.47*

Better than all the rest

## Frequently asked questions about Grammar Checker & AI Keyboard

### What does the Grammar AI Checker & Corrector app do?

This app acts as a comprehensive English writing assistant. It helps improve your grammar, correct sentences, check for plagiarism, perform spell checks, and refine punctuation. It aims to elevate your language skills and ensure your writing is clear, concise, and error-free.

### What are the key features of this grammar app?

Key features include real-time grammar and punctuation suggestions, sentence correction, plagiarism checking, spell checking, and vocabulary enhancement. It also offers insights into writing rules to help users improve their skills over time and refine their writing style.

### How much does the Grammar AI Checker & Corrector app cost?

The app operates on a subscription model. There are weekly and yearly subscription options, both offering a 3-day trial. Subscriptions automatically renew unless turned off 24 hours before the current period ends.

### On which devices can I use this grammar checker?

This grammar application is designed for cross-platform use. You can access its powerful grammar tools on web browsers, desktop applications, and mobile devices, including smartphones and tablets, ensuring you can write with precision anytime, anywhere.

### Who would benefit from using this app?

This app is ideal for anyone who wants to master their English language skills. This includes students working on assignments, professionals crafting important documents or emails, and individuals who simply wish to communicate with greater precision and confidence in their writing.

## Version history (last 5 releases)

### 4.53 — 2026-08-19

What's New:
New text formatting tools to customize your writing.
Introducing My Files for easier document management.
Improved AI features, performance and app stability.
A smoother and more reliable writing experience.

### 4.52 — 2026-08-11

We have enhanced text generation, refreshed key screens, resolved input issues and improved app reliability.

### 4.50 — 2026-07-14

Improved app performance and stability.

### 4.48 — 2026-06-30

Performance improvements and bug fixes.

### 4.47 — 2026-06-11

Enhanced app usability and performance for a smoother experience.

## Apps similar to Grammar Checker & AI Keyboard

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*