---
title: "Complete English Grammar Rules — App Overview"
url: https://marlvel.ai/intel-report/reference/ie-farlex-book-grammar
category: Reference
developer: Farlex, Inc.
platforms: ios, android
rating: 4.5 (42 ratings)
pricing: paid
report_level: overview
generated: 2026-04-21
last_verified: "2026-04-21T19:19:50.816Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** This app offers a complete, one-time purchase grammar resource that functions entirely offline without the need for further in-app transactions.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Reference |
| Rating | 4.5 ★ (42) |
| Pricing | paid |
| Platforms | iOS, Android |
| Latest Version (iOS) | 1.5 |
| Latest Version (Android) | 1.0.1 |
| Developer | Farlex, Inc. |

<!-- SECTION: Summary -->
## What is Complete English Grammar Rules?

Complete English Grammar Rules is a comprehensive reference and learning tool developed by Farlex, Inc. for the English language. It provides a structured curriculum of over 175 lessons and interactive quizzes, distinguishing itself through an offline, ad-free, and single-purchase model.

<!-- SECTION: Key Features -->
## Key Features

- **Comprehensive Curriculum**: Includes over 175 lessons covering parts of speech, verb tenses, and advanced grammar topics.
- **Interactive Quizzes**: Features 175+ quizzes designed to reinforce learning and improve retention of grammatical concepts.
- **Real-World Examples**: Provides thousands of example sentences, common mistake analysis, and key exceptions to standard rules.
- **Offline Functionality**: The app operates entirely offline and is free of advertisements and additional in-app purchases.

<!-- SECTION: Target Audience -->
## Who is it for?

English language learners ranging from beginners to advanced users seeking to master grammar rules and usage.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/complete-english-grammar-rules/id1137236760?uo=2)
- [Google Play](https://play.google.com/store/apps/details?id=com.shubham.englishgrammer&hl=en&gl=us)
- [Full Intelligence Report](https://marlvel.ai/intel-report/reference/ie-farlex-book-grammar)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/intel-report/reference/ie-farlex-book-grammar).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*