--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Esperanto-English Dictionary" developer_entity: "FB PUBLISHING LLC" bundle_id: "Dictesperanto" app_store_id: "1503639834" category: "Reference" primary_platform: "ios" primary_monetization: "Free" offline_capable: true market_region: "US" platforms: "iOS" app_last_updated: "2021-11-28" report_date: "2026-09-03" last_verified: "2026-09-03T00:00:00.000Z" report_version: "2.1" total_reviews: 57 overall_rating: 3.5 confidence: "low" confidence_score: 0.05 data_age_days: 28 intelligence_version: 6 nemesis: "Dicio Portuguese Dictionary" competitor_count: 11 tags: ["reference", "free", "mobile app", "app review", "app analysis", "language", "learners", "speakers"] canonical_url: "https://marlvel.ai/apps/esperanto-english-dictionary" license: "CC-BY-NC 4.0" content_version: "v2" --- # Esperanto-English Dictionary Intelligence Report ## TL;DR {#tldr} - **Category**: Reference · Free - **Signal**: Rating 3.51 > **TL;DR:** Esperanto-English Dictionary is a reference app by FB PUBLISHING LLC, rated 3.51/5 by 57 users, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Esperanto-English Dictionary is a reference app by FB PUBLISHING LLC. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 3.51/5 (57 reviews) | | **Category** | Reference | | **Developer** | FB PUBLISHING LLC | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.05/1.0) | | **Data Age** | 28d | ## Metadata & Market Performance - **Publisher:** FB PUBLISHING LLC - **Category:** Reference - **Target Audience:** Language learners and speakers requiring quick, offline access to Esperanto and English vocabulary. - **Platforms:** iOS - **Version Reviewed:** 2.1 - **Report Date:** 2026-09-03 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.05/1.0) - **App Store ID (iOS):** 1503639834 - **Bundle ID:** Dictesperanto - **Performance Trend:** Declining - **Data Window:** Analysis based on signals collected up to 2026-09-03 ## Executive Snapshot **What it is:** Esperanto-English Dictionary is a lightweight, offline reference tool for Esperanto-English translation on iOS. **Why users hire it:** It removes the connectivity dependency and storage friction that larger, cloud-reliant dictionary apps impose on learners. ## App DNA (Features & Intent) - **[Standard] Bidirectional Search:** Supports translation lookups from both Esperanto to English and English to Esperanto. * *User Intent:* Users want to quickly find relevant content or features. - **[Standard] Offline Functionality:** Provides full access to the dictionary database without requiring an internet connection. * *User Intent:* Users want uninterrupted access without internet dependency. - **[Standard] Performance Optimization:** Features ultra-fast search results and a compact 25 Mb installation size. * *User Intent:* Users want to quickly find relevant content or features. ## Market Position {#market-position} Esperanto-English Dictionary holds a niche position in the Reference category, currently ranking #80 Free in its specific sub-category. The lack of recent updates since 2021 signals a maintenance-only posture that prevents it from competing with the high-frequency release cadence of larger dictionary rivals. ## Monetization Strategy - **Model:** Free - **Tiers:** Free - **Analysis:** The app operates as a free, ad-supported utility, prioritizing user acquisition through low friction and small install size. ## SWOT Analysis {#swot} **Core Strengths:** - 25MB installation size enables rapid acquisition in low-storage environments - Offline-first architecture removes connectivity dependency for core lookup tasks **Growth Levers:** - Localized Esperanto community features could differentiate the product from general-purpose reference tools ## Recent Changes (v5 → v6) {#recent-changes} The outlook for the app has shifted from stable to declining due to the cumulative impact of a four-year development gap. The product strategy has pivoted from a planned feature expansion to a defensive audit of the existing database to mitigate obsolescence risks. **Overall trend**: Declining **Compared at**: 2026-09-03 ### High-impact changes - **[Shifted] Threat Profile Escalation** (swot) - **[Declined] Outlook Trend Downgrade** (positioning) - **[Shifted] PM Roadmap Pivot** (features) ### Medium-impact changes - **[Added] Engagement Deficit Identification** (swot) ## Rivals Landscape {#rivals} > Competitive positioning identified by AI analysis of app features, category, and market signals. ### Esperanto-English Dictionary vs Dicio Portuguese Dictionary - **[Dicio Portuguese Dictionary](https://marlvel.ai/apps/com-setegraus-dicio)** by 7 Graus: Dicio serves as a direct competitor by providing a massive, offline-capable reference database that dominates the dictionary category through superior scale and user trust. - **Key differences:** - Massive user base and brand recognition create a significant barrier to entry for new dictionary apps - Includes daily vocabulary builders and discovery features that encourage higher daily active usage than static tools - High-frequency release cadence ensures the database remains current with modern linguistic trends and slang ### Contenders (Strong Challengers) - **[Advanced Dictionary: LDOCE 6th](https://marlvel.ai/apps/com-p2penglish-learnerdict)** by Nguyen Thi Hoai Thu: This app is a strong contender for the English-learning segment, utilizing corpus-based examples to provide high-quality linguistic context. - Uses corpus-based examples to provide authentic usage context that simple translation dictionaries often miss - Includes the 'Communication 9000' feature, which prioritizes the most essential vocabulary for learners to master - **[Meyers Fremmedordbog](https://marlvel.ai/apps/dk-dsl-ordnet-mf)** by Det Danske Sprog- og Litteraturselskab: This app competes by offering a deep, historical reference database that appeals to academic users seeking archaic terminology. - Provides specialized historical and archaic terminology that this app's modern-focused database lacks - Backed by a recognized linguistic institution, providing a level of academic authority that builds user trust - **[DICO LSQ](https://marlvel.ai/apps/com-resosurdite-lsq)** by Regroupement des parents et amis des enfants sourds et malentendants franco-ontariens (RESO): DICO LSQ targets the reference category with a focus on video-based learning, appealing to users who prefer visual over text-based definitions. - Integrates video-based learning modules that provide superior clarity for sign language compared to static text - Organizes content into thematic phrase modules, facilitating practical application rather than just isolated word definitions - **[Señas Nicas](https://marlvel.ai/apps/com-marcosmiranda-seniasnicas)** by Marcos I. Miranda G.: This app competes for the same educational reference audience by providing a specialized, community-driven sign language catalog. - Leverages an open-source platform model to crowdsource content, reducing maintenance costs compared to proprietary databases - Focuses on categorized learning paths which provide more structured educational value than simple word-lookup tools ### Peers (What They Do Better) - **[Anglit AI](https://marlvel.ai/apps/com-anglitai-app)** by Noam Miller: Anglit AI competes by applying modern AI and gamification to the traditional dictionary and flashcard experience. - Integrates psychometric practice modules that help users prepare for standardized language proficiency tests - Uses a gamification system to maintain high user engagement compared to this app's utility-only approach - **[eKidz.eu - Languages made easy](https://marlvel.ai/apps/ekidz)** by eKidz.eu: eKidz competes for the language-learning demographic by providing AI-driven assessment tools for literacy. - Utilizes AI reading assessment to provide personalized feedback that a standard dictionary cannot offer - Features a readability spectrum that allows users to match content difficulty to their current skill level - **[Hanzi Deck - Chinese Strokes](https://marlvel.ai/apps/com-springtomeinteractive-hanzideck)** by Springtome Interactive: This app targets the language-learning reference space by focusing on the mechanics of character writing and retention. - Implements a spaced repetition system that is scientifically proven to improve long-term vocabulary retention - Offers standardized exam alignment, making it a mandatory tool for students preparing for specific certifications - **[Hinbun - Language Learning](https://marlvel.ai/apps/com-ferhatcaldira-hinbunapp)** by Ferhat Caldira: Hinbun overlaps with this app by offering instant translation features within a broader language-learning ecosystem. - Combines instant translation with interactive stories to keep learners engaged longer than a static dictionary - Includes built-in progress tracking, which provides a gamified incentive for users to continue their studies ### New Kids on the Block (What's Innovative) - **[Pwo Karen Dictionary](https://marlvel.ai/apps/com-pwo-karen-dictionaryapp)** by SaHlaing: This app targets a specific linguistic niche, providing offline dictionary access similar to this app's core value proposition. - Provides a highly specialized, user-friendly interface tailored specifically for the Pwo Karen language community - **[ESLFLIX](https://marlvel.ai/apps/com-englishapp-eslflix)** by HarryCC: ESLFLIX enters the market by combining a reading library with vocabulary management, directly challenging this app's utility. - Offers a curated daily reading library that helps users learn vocabulary through context rather than isolation ## App Momentum (Steady) {#momentum} - Quiet 4 years, bug fixes only. - Last major release November 2021. ## The "So What?" (Strategic Takeaway) {#so-what} Esperanto-English Dictionary is a reference app that is completely free. It holds a 3.51/5 rating from 57 reviews. > **Bottom Line:** Esperanto-English Dictionary serves a narrow, offline-dependent audience, but the lack of feature evolution since 2021 leaves it vulnerable to AI-integrated competitors. Prioritizing a database refresh would address the primary obsolescence risk driving users toward more current reference tools. **Best for:** Language learners and speakers requiring quick, offline access to Esperanto and English vocabulary. ### PM Action Plan (Next Best Moves) - [ ] [MAINTAIN] Audit database for modern linguistic terms because current reviews suggest a lack of contemporary context → improve user trust ### Feature Gaps vs Competitors - Daily vocabulary builder (available in Dicio but missing here) ### Outlook: Declining The reference category is consolidating around AI-driven tools that offer personalized learning paths and real-time database updates. Esperanto-English Dictionary remains in maintenance mode, which will likely lead to further ranking erosion as users migrate to more interactive, frequently updated alternatives. - 🔴 The four-year update gap signals a maintenance-only posture, which erodes user trust against competitors with high-frequency release cadences. - ⚪ The offline-first utility remains a stable value proposition, but it lacks the engagement loops required to compete for modern language learners. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 3.51/5 | | Total Reviews | 57 | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Trend | Declining | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Esperanto-English Dictionary** (this app) | 3.51/5 | N/A | FB PUBLISHING LLC | | [Advanced Dictionary: LDOCE 6th](https://marlvel.ai/apps/com-p2penglish-learnerdict) | 4.9/5 | Thrilled | Nguyen Thi Hoai Thu | | [Pwo Karen Dictionary](https://marlvel.ai/apps/com-pwo-karen-dictionaryapp) | N/A/5 | N/A | SaHlaing | | [DICO LSQ](https://marlvel.ai/apps/com-resosurdite-lsq) | 4.2/5 | N/A | Regroupement des parents et amis des enfants sourds et malentendants franco-ontariens (RESO) | | [eKidz.eu - Languages made easy](https://marlvel.ai/apps/ekidz) | 4.5/5 | N/A | eKidz.eu | | [Meyers Fremmedordbog](https://marlvel.ai/apps/dk-dsl-ordnet-mf) | 4.6/5 | N/A | Det Danske Sprog- og Litteraturselskab | ## Company Profile - **Developer:** FB PUBLISHING LLC - **Website:** [https://www.labibliothequedigitale.com/english](https://www.labibliothequedigitale.com/english) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/esperanto-english-dictionary/id1503639834?uo=4) - **Dev Site:** [Official Website](https://www.labibliothequedigitale.com/english) - **Sources:** App store metadata. ## Related Intel Reports - [*Advanced Dictionary: LDOCE 6th*](https://marlvel.ai/apps/com-p2penglish-learnerdict) (Nguyen Thi Hoai Thu) · 4.9/5 Rating | Excellent Sentiment - [*Pwo Karen Dictionary*](https://marlvel.ai/apps/com-pwo-karen-dictionaryapp) (SaHlaing) · N/A Rating - [*DICO LSQ*](https://marlvel.ai/apps/com-resosurdite-lsq) (Regroupement des parents et amis des enfants sourds et malentendants franco-ontariens (RESO)) · 4.2/5 Rating - [*eKidz.eu - Languages made easy*](https://marlvel.ai/apps/ekidz) (eKidz.eu) · 4.5/5 Rating - [*Meyers Fremmedordbog*](https://marlvel.ai/apps/dk-dsl-ordnet-mf) (Det Danske Sprog- og Litteraturselskab) · 4.6/5 Rating - [*ESLFLIX*](https://marlvel.ai/apps/com-englishapp-eslflix) (HarryCC) · N/A Rating - [*Hanzi Deck - Chinese Strokes*](https://marlvel.ai/apps/com-springtomeinteractive-hanzideck) (Springtome Interactive) · 5.0/5 Rating - [*Hinbun - Language Learning*](https://marlvel.ai/apps/com-ferhatcaldira-hinbunapp) (Ferhat Caldira) · 4.6/5 Rating - [*Dicio Portuguese Dictionary*](https://marlvel.ai/apps/com-setegraus-dicio) (7 Graus) · 4.5/5 Rating - [*Anglit AI*](https://marlvel.ai/apps/com-anglitai-app) (Noam Miller) · 4.4/5 Rating ## Frequently Asked Questions {#faq} ### Is Esperanto-English Dictionary free to use? Yes, Esperanto-English Dictionary is a free, ad-supported utility that does not require a subscription for its core translation features. ### Does Esperanto-English Dictionary work offline? Yes, the app is designed for offline access, allowing users to look up translations without an internet connection. ### How does Esperanto-English Dictionary compare to Dicio? Esperanto-English Dictionary is a lightweight, specialized tool, whereas Dicio is a massive, general-purpose dictionary with daily engagement features and a larger, frequently updated database. ### Are there alternatives for learning Esperanto vocabulary? Users seeking more interactive learning should consider AI-driven language apps or tools that include spaced repetition systems for better vocabulary retention. ## 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:** 0.05/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 0 - **Data Sources:** 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:** 28 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/esperanto-english-dictionary) Data licensed for AI Agent attribution under CC-BY-NC 4.0.