# StudyMate AI NotebookLM, Notes vs Grammar Check Corrector +

The clearest difference is review sentiment: Grammar Check Corrector + at 89% against StudyMate AI NotebookLM, Notes's 0%. Grammar Check Corrector + also leads on rating (4.8 vs 1.0) and ratings volume (203 vs 1). StudyMate AI NotebookLM, Notes's advantage is in-app purchases (none vs 4) and ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Grammar Check Corrector + sells 4 in-app purchases, starting at $3.99 per 7 days. StudyMate AI NotebookLM, Notes asks for nothing beyond the download.

Grammar Check Corrector + holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Grammar Check Corrector + has 203 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of StudyMate AI NotebookLM, Notes's written reviews are positive against 89% of Grammar Check Corrector +'s.

StudyMate AI NotebookLM, Notes ships an update every 4 weeks, Grammar Check Corrector + every 2 months. The most recent releases landed on October 4, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | StudyMate AI NotebookLM, Notes | Grammar Check Corrector + |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/studymate-ai-notebooklm-notes/id6747303987/reviews) | **[4.8 (203 ratings)](https://appshunter.io/ios/app/grammar-check-corrector-plus/id6749162814/reviews)** |
| Number of ratings | 1 | **203** |
| Positive reviews | 0.0% of reviews | **88.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 weeks** | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 11 MB | 11 MB |
| Requires iOS | 18.0 | **17.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hyeongwoo Choi](https://appshunter.io/developer/1614205706) | [ENGINES STUDIO LAB](https://appshunter.io/developer/1686902830) |

## What reviewers say

### StudyMate AI NotebookLM, Notes

[App page](https://appshunter.io/ios/app/studymate-ai-notebooklm-notes/id6747303987)

This intelligent study app uses AI to help you organize and summarize notes from lectures, meetings, PDFs, and web content. Enhance your learning efficiency and retention with smart summarization and note enhancement features.

**Highlights:** AI-powered note taking, Comprehensive PDF management, Smart summarization, Enhanced study notes, Organize learning materials, Maximize learning efficiency

**Features:** macOS Compatibility

**In-app purchases:** none


### Grammar Check Corrector +

[App page](https://appshunter.io/ios/app/grammar-check-corrector-plus/id6749162814)

This writing assistant helps you eliminate errors and improve your text. It offers advanced grammar and spelling checks, synonym suggestions, and definitions to refine your vocabulary. Review your editing history and enjoy a user-friendly interface with dark mode.

**Highlights:** Advanced grammar and spelling checker, Import text from PDFs, Synonym finder and word choice improvement, Word definitions, Editing history review, Dark Mode support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium access for 1 week | $3.99 | per 7 days |
| Premium access for 1 month | $12.99 | per month |
| Premium access for 1 year | $29.99 | per year |
| Premium access forever | $24.99 | one-time |


## Frequently asked questions

### Is StudyMate AI NotebookLM, Notes free?

StudyMate AI NotebookLM, Notes is free to download, with no in-app purchases.

### Is Grammar Check Corrector + free?

Grammar Check Corrector + is free to download, with in-app purchases available.

### Which has better reviews, StudyMate AI NotebookLM, Notes or Grammar Check Corrector +?

Grammar Check Corrector + is rated higher. StudyMate AI NotebookLM, Notes averages 1.0 out of 5 from 1 ratings, while Grammar Check Corrector + averages 4.8 from 203 ratings.

### Do StudyMate AI NotebookLM, Notes or Grammar Check Corrector + have ads?

Grammar Check Corrector + shows ads; StudyMate AI NotebookLM, Notes does not.

### Which is updated more often, StudyMate AI NotebookLM, Notes or Grammar Check Corrector +?

StudyMate AI NotebookLM, Notes ships an update every 4 weeks, and Grammar Check Corrector + every 2 months. Most recently, StudyMate AI NotebookLM, Notes was updated on October 4, 2026 and Grammar Check Corrector + on October 17, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*