Overview · Full Intel report in progress

Complete English Grammar Rules is an established reference app that is a paid app. With a 4.5/5 rating from 42 reviews, it shows polarized user reception.

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.

Current Momentum

v1.5

No release notes available.

Competition

Rivals identification in progress

7-Day Rank Pulse 🇺🇸

Reference
#94
NEW

Rating Pulse 🇺🇸

What makes this app unique?

What Does It Look Like?

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What Are The Key Features?

Comprehensive CurriculumStandard

Includes over 175 lessons covering parts of speech, verb tenses, and advanced grammar topics.

Interactive QuizzesStandard

Features 175+ quizzes designed to reinforce learning and improve retention of grammatical concepts.

Real-World ExamplesStandard

Provides thousands of example sentences, common mistake analysis, and key exceptions to standard rules.

Offline FunctionalityStandard

The app operates entirely offline and is free of advertisements and additional in-app purchases.

How much does it cost?

Paid

Who Built It?

Farlex, Inc. app icon 1
Farlex, Inc. app icon 2
Farlex, Inc. app icon 3
Farlex, Inc. app icon 4

Farlex

(2.5K)

Providing comprehensive linguistic and reference tools for students and professionals. Aggregating authoritative content into accessible, multi-platform search interfaces.

Portfolio

13

Apps

Free 11Paid 1
Reference58%
Games17%
Referencia8%

What other apps does Farlex make?

Dictionary and Thesaurus Pro

Dictionary and Thesaurus Pro

Reference·4.9(2.5K)
View Intel →
Deutsch-Englisch Wörterbuch.

Deutsch-Englisch Wörterbuch.

Reference
Dictionnaire français-allemand

Dictionnaire français-allemand

Reference
Dictionnaire Français–Espagnol

Dictionnaire Français–Espagnol

Reference
Encyclopedia by Farlex

Encyclopedia by Farlex

Reference
WordHub

WordHub

Games

Explore the full Farlex report

Portfolio breakdown, audience, momentum, and every app published by Farlex.

Go deeper

Analysis in progress, available soon

What do users think recently?

Analysis in progress, available soon

View the full user-sentiment analysis

Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.

Go deeper

Analysis in progress, available soon

What is the competitive landscape for Complete English Grammar Rules?

How's The Reference Market?

How does it evolve in the Reference market?

Rank progression

18 active rankings tracked — 30-day window

No rank history available for this chart.

Strategic analysis coming soon

SWOT, key takeaways & outlook

The outtake for Complete English Grammar Rules

Key Takeaways

This app offers a complete, one-time purchase grammar resource that functions entirely offline without the need for further in-app transactions.

Where Is It Heading?

Trend analysis

Available very soon

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with editorial review, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Complete English Grammar Rules, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Complete English Grammar Rules Intelligence Report.” Updated Apr 21, 2026. https://marlvel.ai/apps/ie-farlex-book-grammar

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Data licensed under CC-BY-NC 4.0