--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Learn English Grammar Checker" developer_entity: "CSUPPORTER JOINT STOCK COMPANY" bundle_id: "com.learn.english.grammar.rules" app_store_id: "1316406988" category: "Education" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2020-06-02" report_date: "2026-08-27" last_verified: "2026-08-27T00:00:00.000Z" report_version: "2.3" total_reviews: 609 overall_rating: 4.6 sentiment: "Frustrated" sentiment_score: 35 confidence: "low" confidence_score: 0.35 top_praise_theme: "The core educational content provides a helpful and effective way for students to learn English grammar" top_complaint_theme: "Users report that the application requires payment to view test answers, which feels deceptive to them" review_sample_size: 9 total_review_count: 9 analyzed_review_count: 9 data_age_days: 34 momentum_velocity: "zombie" intelligence_version: 3 tags: ["education", "free", "frustrated sentiment", "mobile app", "app review", "app analysis", "students", "language", "learners"] canonical_url: "https://marlvel.ai/apps/learn-english-grammar-checker" license: "CC-BY-NC 4.0" content_version: "v2" --- # Learn English Grammar Checker Intelligence Report ## TL;DR {#tldr} - **Category**: Education · Free - **Signal**: Rating 4.6 · Sentiment Frustrated - **Recent focus**: Users report that the application requires payment to view test answers, which feels deceptive to them (top complaint) · The core educational content provides a helpful and effective way for students to learn English grammar (top praise) > **TL;DR:** Learn English Grammar Checker is a education app by CSUPPORTER JOINT STOCK COMPANY, rated 4.6/5 by 609 users, with Frustrated user sentiment (35/100), available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Learn English Grammar Checker faces Frustrated user sentiment (4.6/5 from 609 reviews), with users reporting users report that the application requires payment to view test answers, which feels deceptive to them as the primary concern. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.6/5 (609 reviews) | | **User Mood** | Frustrated | | **Category** | Education | | **Developer** | CSUPPORTER JOINT STOCK COMPANY | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.35/1.0) | | **Data Age** | 34d | ## Metadata & Market Performance - **Publisher:** CSUPPORTER JOINT STOCK COMPANY - **Category:** Education - **Target Audience:** Students and language learners preparing for international English proficiency exams like IELTS, TOEFL, and TOEIC. - **Platforms:** iOS - **Version Reviewed:** 2.3 - **Report Date:** 2026-08-27 - **Signal Count:** 9 reviews analyzed - **Confidence:** Low (0.35/1.0) - **App Store ID (iOS):** 1316406988 - **Bundle ID:** com.learn.english.grammar.rules - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-08-27 ## Executive Snapshot **What it is:** Learn English Grammar Checker is an educational tool for IELTS, TOEFL, and TOEIC preparation that provides diagnostic tests and grammar lessons on iOS. **Why users hire it:** The application removes the friction of identifying specific grammar weaknesses by mapping test results directly to targeted lesson modules. ## App DNA (Features & Intent) - **[Standard] Full Grammar Test:** Comprehensive diagnostic assessment covering English grammar rules for IELTS, TOEFL, and TOEIC preparation. - **[Standard] Grammar Lessons:** Library of 25 lessons containing 91 grammar topics, sourced from academic experts. * *User Intent:* Users expect intelligent, adaptive experiences that learn from their behavior. - **[Differentiator] Targeted Grammar Quizzes:** Customizable exercises allowing users to select specific lessons for testing rather than taking a full assessment. * *User Intent:* Users value self-expression and personalized experiences. ## Market Position {#market-position} Learn English Grammar Checker maintains a 4.6-star rating across 609 reviews, yet the lack of updates since 2020 limits its competitive relevance. ## Monetization Strategy - **Model:** Free - **Tiers:** Free access to all lessons and tests - **Analysis:** The application operates as a free educational tool, though users report that viewing test answers requires payment. ## 🔴 User Sentiment (Low Confidence: 9 of 9 reviews analyzed) {#user-sentiment} - **Overall Rating:** 4.6/5 - **Platform Split:** iOS 4.6/5 (609 ratings) - **Overall Sentiment:** Frustrated - **Note:** The 4.6/5 store rating reflects cumulative history, while the Frustrated sentiment reflects recent user reviews analyzed by our AI pipeline. ### Top Praises - **The core educational content provides a helpful and effective way for students to learn English grammar** ### Top Complaints (Impact Areas) - **Users report that the application requires payment to view test answers, which feels deceptive to them** ## SWOT Analysis {#swot} **Core Strengths:** - Diagnostic assessment maps knowledge gaps against international test standards. - Targeted quiz mechanism allows for focused lesson review. **Growth Levers:** - Fixing lesson-loading bugs would restore basic utility for existing users. - Transparent pricing could reduce user frustration and improve conversion rates. ## What's New - **Latest (v2.3, 6 years ago):** Resolved issues preventing test detail viewing and corrected study history tracking. ## App Momentum (Zombie) {#momentum} - No updates for over 74 months. - Development status remains dormant. > **Cadence:** 1 total versions · 0 majors in last 6 months · 2276 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Learn English Grammar Checker is an education app that is completely free. With a 4.6/5 rating from 609 reviews, it draws more critical themes in recent reviews than its store average suggests. > **Bottom Line:** Learn English Grammar Checker requires a pivot to restore basic functionality and address the monetization friction driving negative sentiment. Resolving these technical and billing failures would unlock the value of the existing educational content for the user base. **Best for:** Students and language learners preparing for international English proficiency exams like IELTS, TOEFL, and TOEIC. ### PM Action Plan (Next Best Moves) - [ ] [PIVOT] Audit payment gateway and unlock test answers because users report deceptive billing practices → reduce negative sentiment. ### Outlook: Declining The education category is consolidating around apps with frequent content updates and transparent subscription models. Learn English Grammar Checker is currently exposed due to its dormant development status and technical instability, which will continue to erode its rating baseline until the core lesson-loading bugs are addressed. - 🔴 The lack of updates for over six years prevents the application from addressing critical technical regressions, leading to a decline in user trust. - 🔴 Persistent reports of payment failures without access to premium content drive negative sentiment, which compounds the churn pressure on the existing user base. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.6/5 | | Total Reviews | 609 | | Sentiment | Frustrated (35/100) | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Trend | Stable | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Learn English Grammar Checker** (this app) | 4.6/5 | Frustrated | CSUPPORTER JOINT STOCK COMPANY | | [AlgoApp - Flashcards](https://marlvel.ai/apps/algoapp-flashcards) | 4.5/5 | n/a | AlgoApp Inc | | [Elevate - Brain Training Games](https://marlvel.ai/apps/elevate-brain-training-games) | 4.7/5 | n/a | The Mind Company | | [Flashcards Deluxe](https://marlvel.ai/apps/flashcards-deluxe) | 4.5/5 | N/A | OrangeOrApple.com | | [Flash Cards Flashcards Maker](https://marlvel.ai/apps/flash-cards-flashcards-maker) | 4.0/5 | Mixed | Infinite Wave Media, LLC | | [Flashcards maker - AI generate](https://marlvel.ai/apps/flashcards-maker-ai-generate) | 4.1/5 | Mixed | Teleprompter LLC | ## Company Profile - **Developer:** CSUPPORTER JOINT STOCK COMPANY ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/learn-english-grammar-checker/id1316406988?uo=4) - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*AlgoApp - Flashcards*](https://marlvel.ai/apps/algoapp-flashcards) (AlgoApp Inc) · 4.5/5 Rating - [*Elevate - Brain Training Games*](https://marlvel.ai/apps/elevate-brain-training-games) (The Mind Company) · 4.7/5 Rating - [*Flashcards Deluxe*](https://marlvel.ai/apps/flashcards-deluxe) (OrangeOrApple.com) · 4.5/5 Rating - [*Flash Cards Flashcards Maker*](https://marlvel.ai/apps/flash-cards-flashcards-maker) (Infinite Wave Media, LLC) · 4.0/5 Rating - [*Flashcards maker - AI generate*](https://marlvel.ai/apps/flashcards-maker-ai-generate) (Teleprompter LLC) · 4.1/5 Rating - [*Impulse - Brain Training*](https://marlvel.ai/apps/impulse-brain-training) (GMRD Apps Limited) · 4.6/5 Rating - [*Peak - Brain Training*](https://marlvel.ai/apps/peak-brain-training) (Synaptic Labs) · 4.7/5 Rating - [*자주 틀리는 우리말*](https://marlvel.ai/apps/app--424) (DaolSoft, Co., Ltd.) · N/A Rating - [*달공부 - 한 달 공부 다이어리 + 루틴/공부 타이머*](https://marlvel.ai/apps/azlabs-dalstudy) (SuWon Choi) · N/A Rating - [*타요콘 - 타요 아바타 놀이동화*](https://marlvel.ai/apps/com-kigle-project-tayocon) (KIGLE) · 3.1/5 Rating ## Frequently Asked Questions {#faq} ### Is Learn English Grammar Checker free to use? The application is free to download, but users report that viewing test answers requires a paid subscription. ### Does Learn English Grammar Checker help with IELTS preparation? Yes, the application includes a diagnostic test and lessons designed to cover grammar rules used in international tests like IELTS, TOEFL, and TOEIC. ### Why are the lessons not loading in the app? Users report that recent updates caused lessons to display as blank black screens, preventing access to the educational content. ## Methodology {#methodology} This report was generated by Marlvel.ai's 5-stage AI intelligence pipeline: 1. **Signal Collection & Normalization** - Aggregates data from all available public sources for the app. Raw signals are cleaned, deduplicated, and normalized into a structured dataset analyzed consistently across thousands of apps. 2. **Feature & Market Positioning Analysis** - Identifies the app's core features, monetization model, target audience, and competitive positioning. Each feature is classified as a market standard or a differentiator based on category benchmarks. 3. **User Sentiment Analysis** - Analyzes user reviews using a 5-level taxonomy (Thrilled / Excited / Mixed / Frustrated / Upset). Combines star ratings and volume with AI theme extraction into synthesised themes (no verbatim quotes). 4. **Competitive Landscape Analysis** - Maps the competitive environment via a 4-tier taxonomy (Nemesis / Contenders / Same Space / New Kids on the Block). Prioritizes same sub-genre over broad category. 5. **Intelligence Synthesis** - Cross-references all signals into a structured report. Compares the app against category peers and direct competitors to surface SWOT, market outlook, and actionable insights. - **Confidence Score:** 0.35/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 9 - **Data Sources:** user reviews, App Store metadata - **Rating Method:** Weighted average across platforms (iOS & Android), weighted by review count per platform - **Independence:** Fully independent analysis. No publisher sponsorship or editorial influence. - **Report Age:** 34 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/learn-english-grammar-checker) Data licensed for AI Agent attribution under CC-BY-NC 4.0.