--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Highlighter - Focus on detail" developer_entity: "Mai Tuan Viet" bundle_id: "tuanviet1.studio.HighLightApp" app_store_id: "1589656452" category: "Education" primary_platform: "ios" primary_monetization: "Paid" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2021-11-08" report_date: "2026-08-25" last_verified: "2026-08-25T00:00:00.000Z" report_version: "1.0.6" total_reviews: 5 overall_rating: 3.8 sentiment: "Excited" sentiment_score: 70 confidence: "medium" confidence_score: 0.5 top_complaint_theme: "Web page refreshes cause all user-applied marks and highlights to disappear, resulting in lost work" review_sample_size: 1 total_review_count: 1 analyzed_review_count: 1 data_age_days: 5 momentum_velocity: "zombie" intelligence_version: 3 tags: ["education", "paid", "excited sentiment", "mobile app", "app review", "app analysis", "students", "researchers", "annotate"] canonical_url: "https://marlvel.ai/apps/highlighter-focus-on-detail" license: "CC-BY-NC 4.0" content_version: "v2" --- # Highlighter - Focus on detail Intelligence Report ## TL;DR {#tldr} - **Category**: Education · Paid - **Signal**: Rating 3.8 · Sentiment Excited - **Recent focus**: Web page refreshes cause all user-applied marks and highlights to disappear, resulting in lost work (top complaint) > **TL;DR:** Highlighter - Focus on detail is a education app by Mai Tuan Viet, rated 3.8/5 by 5 users, with Excited user sentiment (70/100), available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Highlighter - Focus on detail has Excited user sentiment with a 3.8/5 rating from 5 reviews. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 3.8/5 (5 reviews) | | **User Mood** | Excited | | **Category** | Education | | **Developer** | Mai Tuan Viet | | **Pricing** | Paid | | **Platforms** | iOS | | **Confidence** | Medium (0.5/1.0) | | **Data Age** | 5d | ## Metadata & Market Performance - **Publisher:** Mai Tuan Viet - **Category:** Education - **Target Audience:** Students and researchers who need to annotate and save web content for study or reference. - **Platforms:** iOS - **Version Reviewed:** 1.0.6 - **Report Date:** 2026-08-25 - **Signal Count:** 1 review analyzed - **Confidence:** Medium (0.5/1.0) - **App Store ID (iOS):** 1589656452 - **Bundle ID:** tuanviet1.studio.HighLightApp - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-08-25 ## Executive Snapshot **What it is:** Highlighter is a Safari extension for iOS that allows users to annotate and save text excerpts from web pages. **Why users hire it:** The tool serves students and researchers who need a persistent record of web-based study materials, but the current failure to save highlights across page refreshes prevents it from fulfilling this job. ## App DNA (Features & Intent) - **[Standard] Safari Extension Integration:** Enables text highlighting directly within the Safari browser via native extension architecture. - **[Differentiator] Highlight Persistence:** Memorizes and stores text excerpts across web pages for future access. ## Market Position {#market-position} Highlighter maintains a 3.8-star rating across five total ratings in the Education category. The lack of updates since 2021 signals a dormant product lifecycle that limits competitive relevance. ## Monetization Strategy - **Model:** Paid - **Tiers:** Permanent access for $0.99 - **Price:** iOS: $0.99 - **Analysis:** Single-purchase model at $0.99 provides lifetime access without recurring subscription overhead. ## 🟢 User Sentiment (Medium Confidence: 1 of 1 review analyzed) {#user-sentiment} - **Overall Rating:** 3.8/5 - **Platform Split:** iOS 3.8/5 (5 ratings) - **Overall Sentiment:** Excited ### Top Complaints (Impact Areas) - **Web page refreshes cause all user-applied marks and highlights to disappear, resulting in lost work** ## SWOT Analysis {#swot} **Core Strengths:** - Safari extension architecture enables native text highlighting - Single-purchase model at $0.99 removes subscription friction **Growth Levers:** - Local database integration would resolve data-loss complaints ## Recent Changes (v2 → v3) {#recent-changes} The product remains in a state of terminal dormancy, with no functional changes recorded since 2021. The primary shift is a more critical analytical assessment that now characterizes the tool as effectively sunset. **Overall trend**: Stable **Compared at**: 2026-08-25 ### High-impact changes - **[Shifted] Product Lifecycle Reclassification** (positioning) ### Medium-impact changes - **[Shifted] Refined Competitive Threat** (swot) - **[Shifted] Opportunity Focus** (swot) ## What's New - **Latest (v1.0.6, 4 years ago):** Introduced a disable button to the interface. ## App Momentum (Zombie) {#momentum} - Dormant for 47 months. - No feature updates since 2021. > **Cadence:** 1 total versions · 0 majors in last 6 months · 1751 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Highlighter - Focus on detail is an education app that is a paid app. It holds a 3.8/5 rating from 5 reviews. > **Bottom Line:** Highlighter currently fails its primary job of saving user annotations, and the four-year development gap suggests the product is effectively sunset. Addressing the persistence bug is the only path to restoring basic utility for the remaining user base. **Best for:** Students and researchers who need to annotate and save web content for study or reference. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Rebuild highlight persistence logic because user reports confirm data loss on page refresh → restore core utility ### Outlook: Declining The Education utility market is consolidating around browser-native features and actively maintained note-taking tools. Highlighter remains exposed due to its long-term development dormancy and unresolved data-persistence bugs, which will continue to drive churn until the product is either updated or abandoned. - 🔴 The four-year development gap confirms a maintenance-only state, which prevents the app from addressing critical data-loss bugs. - 🔴 Persistent data-loss complaints in the latest reviews indicate the core value proposition is broken for this app student audience. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 3.8/5 | | Total Reviews | 5 | | Sentiment | Excited (70/100) | | Confidence | Medium | | Pricing Model | Paid | | Platforms | iOS | | Key Features | 2 analyzed | | Trend | Stable | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Highlighter - Focus on detail** (this app) | 3.8/5 | Excited | Mai Tuan Viet | | [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:** Mai Tuan Viet - **Website:** [https://www.facebook.com/XinChaoCacBanToiTenLaTuanViet/](https://www.facebook.com/XinChaoCacBanToiTenLaTuanViet/) - **Social:** [Instagram](https://www.instagram.com/meta) · [Facebook](https://www.facebook.com/Meta) · [X/Twitter](https://twitter.com/Meta) · [YouTube](https://www.youtube.com/meta) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/highlighter-focus-on-detail/id1589656452?uo=4) - **Dev Site:** [Official Website](https://www.facebook.com/XinChaoCacBanToiTenLaTuanViet/) - **Sources:** Developer website content, About us / company information, 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 Highlighter still being updated? No. Highlighter has not received a feature update since late 2021, and development appears to be in a dormant state. ### Does Highlighter save my notes permanently? Users report that highlights disappear when a web page is refreshed, meaning the app currently fails to provide reliable, permanent data storage. ### What is the difference between Highlighter and free browser extensions? Highlighter is a paid, one-time purchase tool. However, free browser-native reading modes and other extensions often provide similar annotation features without the data-loss issues reported here. ## 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:** 0.5/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 1 - **Data Sources:** user reviews, developer website, company about page, 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:** 5 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/highlighter-focus-on-detail) Data licensed for AI Agent attribution under CC-BY-NC 4.0.