--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Epub Fixer" developer_entity: "Athanasios Dogrammatzis" bundle_id: "com.sakisdapps.epubfixer" app_store_id: "6755896505" category: "Utilities" primary_platform: "ios" primary_monetization: "Freemium" offline_capable: true market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-01-25" report_date: "2026-08-21" last_verified: "2026-08-21T00:00:00.000Z" report_version: "1.0.4" total_reviews: 0 sentiment: "Thrilled" sentiment_score: 90 confidence: "low" confidence_score: 0.3 top_praise_theme: "The latest update successfully resolves indexing errors for epub files, improving the core reading experience" review_sample_size: 1 total_review_count: 1 analyzed_review_count: 1 data_age_days: 82 momentum_velocity: "maintenance" intelligence_version: 3 tags: ["utilities", "freemium", "thrilled sentiment", "mobile app", "app review", "app analysis", "e-book", "readers", "encounter"] canonical_url: "https://marlvel.ai/apps/epub-fixer" license: "CC-BY-NC 4.0" content_version: "v2" --- # Epub Fixer Intelligence Report ## TL;DR {#tldr} - **Category**: Utilities · Freemium - **Signal**: Sentiment Thrilled - **Recent focus**: The latest update successfully resolves indexing errors for epub files, improving the core reading experience (top praise) > **TL;DR:** Epub Fixer is a utilities app by Athanasios Dogrammatzis, with Thrilled user sentiment (90/100), available on iOS & Android. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Epub Fixer is a utilities app by Athanasios Dogrammatzis. ## Quick Facts | Fact | Value | | :--- | :--- | | **User Mood** | Thrilled | | **Category** | Utilities | | **Developer** | Athanasios Dogrammatzis | | **Pricing** | Freemium | | **Platforms** | iOS & Android | | **Confidence** | Low (0.3/1.0) | | **Data Age** | 82d | ## Metadata & Market Performance - **Publisher:** Athanasios Dogrammatzis - **Category:** Utilities - **Target Audience:** E-book readers who encounter formatting or import errors when transferring files to Kindle and other e-readers. - **Platforms:** iOS & Android - **Version Reviewed:** 1.0.4 - **Report Date:** 2026-08-21 - **Signal Count:** 1 review analyzed - **Confidence:** Low (0.3/1.0) - **App Store ID (iOS):** 6755896505 - **Bundle ID:** com.sakisdapps.epubfixer - **Google Play ID:** com.sakisdapps.epubfixer - **Performance Trend:** Mixed - **Data Window:** Analysis based on signals collected up to 2026-08-21 ## Executive Snapshot **What it is:** Epub Fixer is an offline utility for repairing EPUB formatting, encoding, and hyperlink errors on iOS and Android. **Why users hire it:** The app removes the friction of failed e-reader imports, displacing manual file-editing workflows that require technical expertise. ## App DNA (Features & Intent) - **[Differentiator] EPUB Repair Engine:** Automated correction of internal hyperlinks, language tags, and UTF-8 encoding. * *User Intent:* Users expect intelligent, adaptive experiences that learn from their behavior. - **[Differentiator] Offline Processing:** Local file modification without server uploads or cloud dependency. * *User Intent:* Users want uninterrupted access without internet dependency. - **[Standard] Unlimited Fixes:** Premium-tier gate via one-time purchase. * *User Intent:* Users seek enhanced value through premium features. ## Market Position {#market-position} Epub Fixer occupies the niche for privacy-conscious, offline-first e-book repair. The lack of recent feature updates relative to the utility category suggests a stable but stagnant market position. ## Monetization Strategy - **Model:** Freemium - **Tiers:** Free tier: one EPUB fix per day, Pro tier: unlimited fixes via one-time purchase - **Analysis:** The freemium model uses a daily usage cap to gate utility, converting power users via a single one-time purchase. ## 🟢 User Sentiment (Low Confidence: 1 of 1 review analyzed) {#user-sentiment} - **Overall Sentiment:** Thrilled ### Top Praises - **The latest update successfully resolves indexing errors for epub files, improving the core reading experience** ## SWOT Analysis {#swot} **Core Strengths:** - Offline-first architecture eliminates connectivity dependencies **Growth Levers:** - Localized pricing could capture high-ARPU international markets ## Recent Changes (v2 → v3) {#recent-changes} The competitive outlook shifted from a focus on feature stagnation to an existential concern regarding native platform improvements on Kindle. The app's core utility is now framed as vulnerable to platform-level updates rather than just web-based competition. **Overall trend**: Mixed **Compared at**: 2026-08-21 ### High-impact changes - **[Added] New existential threat identified** (swot) - **[Shifted] Outlook narrative pivot** (positioning) ### Medium-impact changes - **[Declined] Feature position downgrade** (features) ## What's New - **Latest (v1.0.5, 6 months ago):** General bug fixes and stability improvements. ## App Momentum (Maintenance) {#momentum} - Ships minor bug fixes only. - Last major release six months ago. > **Cadence:** 2 total versions · 0 majors in last 6 months · 207 days since last update · 53 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} Epub Fixer is an utilities app that is free with in-app purchases. > **Bottom Line:** Epub Fixer provides a reliable, privacy-centric solution for e-book formatting, but the current maintenance-only cadence risks obsolescence as e-reader platforms improve native file handling. **Best for:** E-book readers who encounter formatting or import errors when transferring files to Kindle and other e-readers. ### PM Action Plan (Next Best Moves) - [ ] [MAINTAIN] Audit Kindle import logs because native platform updates threaten the core value proposition → protect user retention ### Outlook: Stable The e-book utility market is consolidating around native platform tools, leaving Epub Fixer in a stable but vulnerable position. Continued reliance on manual file repair without feature evolution will likely lead to a slow decline in relevance as Kindle and other e-readers simplify their import logic. - ⚪ The maintenance-only release cadence indicates the developer is prioritizing stability over new feature expansion, which limits growth potential. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Total Reviews | 0 | | Sentiment | Thrilled (90/100) | | Confidence | Low | | Pricing Model | Freemium | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Trend | Mixed | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Epub Fixer** (this app) | N/A/5 | Thrilled | Athanasios Dogrammatzis | | [Sota Connect: Secure Network](https://marlvel.ai/apps/fi-catconnect-sota) | 4.9/5 | N/A | Cat Connect | | [avoVPN Desktop](https://marlvel.ai/apps/avovpn-desktop) | N/A/5 | N/A | Avocado VPN Technologies | | [Free VPN by Free VPN .org™](https://marlvel.ai/apps/free-vpn-by-free-vpn-org) | 4.5/5 | Mixed | Free VPN LLC | | [Fusvob VPN : Super VPN 2026](https://marlvel.ai/apps/com-toplinkc-foxexcellent) | 4.5/5 | Mixed | Fuxin Technology | | [Potatso](https://marlvel.ai/apps/potatso) | 4.4/5 | n/a | Potatso Lab LTD | ## Company Profile - **Developer:** Athanasios Dogrammatzis ## Data Sources & Links - **App Store ID:** 6755896505 - **Google Play ID:** com.sakisdapps.epubfixer - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*Sota Connect: Secure Network*](https://marlvel.ai/apps/fi-catconnect-sota) (Cat Connect) · 4.9/5 Rating - [*avoVPN Desktop*](https://marlvel.ai/apps/avovpn-desktop) (Avocado VPN Technologies) · N/A Rating - [*Free VPN by Free VPN .org™*](https://marlvel.ai/apps/free-vpn-by-free-vpn-org) (Free VPN LLC) · 4.5/5 Rating - [*Fusvob VPN : Super VPN 2026*](https://marlvel.ai/apps/com-toplinkc-foxexcellent) (Fuxin Technology) · 4.5/5 Rating - [*Potatso*](https://marlvel.ai/apps/potatso) (Potatso Lab LTD) · 4.4/5 Rating - [*Quantumult X*](https://marlvel.ai/apps/quantumult-x) (Cross Utility Ltd) · 3.8/5 Rating - [*V2Box - V2ray Client*](https://marlvel.ai/apps/v2box-v2ray-client) (techlaim) · 4.6/5 Rating - [*카톡 분석 - 오픈채팅, 카톡 채팅 분석, 통계, 검색*](https://marlvel.ai/apps/com-liger-katalkanalysispaid) (Park Sung Cheol) · N/A Rating - [*로또 황금번호 생성기*](https://marlvel.ai/apps/lotto-lottogold) (jaehwan lee) · N/A Rating - [*도사폰 (만세력 역학도구)*](https://marlvel.ai/apps/app--656) (Softchaser Company Limited) · 5.0/5 Rating ## Frequently Asked Questions {#faq} ### Is Epub Fixer safe for my personal e-book library? Yes, Epub Fixer operates entirely offline, meaning your files never leave your device and are not tracked or uploaded to any server. ### How many EPUB files can I fix for free? Free users can fix one EPUB file per day. Unlimited fixes are available through a one-time Pro purchase. ### Does Epub Fixer work with Kindle? Yes, Epub Fixer is specifically designed to repair formatting and encoding issues that often cause EPUB files to fail when imported into Kindle. ## 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:** 0.3/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 1 - **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:** 82 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/epub-fixer) Data licensed for AI Agent attribution under CC-BY-NC 4.0.