--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Byeoldosa: Arithmetic Practice" developer_entity: "Hyekyung Jeong" bundle_id: "starlight.byeoldosa" app_store_id: "6443646489" category: "Education" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2025-11-19" report_date: "2026-10-25" last_verified: "2026-10-25T00:00:00.000Z" report_version: "1.6.1" total_reviews: 1 overall_rating: 5 confidence: "low" confidence_score: 0.05 data_age_days: 20 momentum_velocity: "zombie" intelligence_version: 2 tags: ["education", "free", "mobile app", "app review", "app analysis", "students", "seeking", "arithmetic"] canonical_url: "https://marlvel.ai/apps/byeoldosa-arithmetic-practice" license: "CC-BY-NC 4.0" content_version: "v2" --- # Byeoldosa: Arithmetic Practice Intelligence Report ## TL;DR {#tldr} - **Category**: Education 路 Free - **Signal**: Rating 5 > **TL;DR:** Byeoldosa: Arithmetic Practice is a education app by Hyekyung Jeong, rated 5/5 by 1 users, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Byeoldosa: Arithmetic Practice is a education app by Hyekyung Jeong. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 5/5 (1 review) | | **Category** | Education | | **Developer** | Hyekyung Jeong | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.05/1.0) | | **Data Age** | 20d | ## Metadata & Market Performance - **Publisher:** Hyekyung Jeong - **Category:** Education - **Target Audience:** Students seeking arithmetic practice and individuals looking for mental math exercises. - **Platforms:** iOS - **Version Reviewed:** 1.6.1 - **Report Date:** 2026-10-25 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.05/1.0) - **App Store ID (iOS):** 6443646489 - **Bundle ID:** starlight.byeoldosa - **Data Window:** Analysis based on signals collected up to 2026-10-25 ## Executive Snapshot **What it is:** Byeoldosa is an arithmetic practice app for students and adults, structured around vertical column calculation stages on iOS and Mac. **Why users hire it:** The app removes the cognitive friction of digital math tools by mimicking the familiar, step-by-step process of paper-based arithmetic. ## App DNA (Features & Intent) - **[Differentiator] Vertical Calculation Mode:** Step-by-step column arithmetic interface that mimics paper-based calculation - **[Standard] Difficulty-based Leveling:** Progressive arithmetic stages ranging from single-digit to three-digit numbers * *User Intent:* Users seek enhanced value through premium features. - **[Standard] Performance Tracking:** Automated logging of practice sets with charts visualizing speed and accuracy trends * *User Intent:* Users want visibility into their own performance and progress. ## Market Position {#market-position} Byeoldosa maintains a niche position as a zero-monetization utility in the Education category, holding a 5.0-star rating. Its lack of subscription gates contrasts with the broader category trend of aggressive paywalls. ## Monetization Strategy - **Model:** Free - **Tiers:** Free access to all arithmetic practice features - **Analysis:** The app operates as a free utility with no visible monetization gates or subscription tiers. ## SWOT Analysis {#swot} **Core Strengths:** - Vertical calculation interface mimics paper-based workflows - Zero-monetization model removes user-experience friction **Growth Levers:** - Daily challenge mode could increase user retention ## What's New - **Latest (v1.6.1, 11 months ago):** Refined UI aesthetics and implemented device-specific layout optimizations for iPhone, iPad, and Mac. ## App Momentum (Zombie) {#momentum} - Ships no new features since 2025 - Maintains stable utility-focused design > **Cadence:** 1 total versions 路 1 majors in last 6 months 路 340 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Byeoldosa: Arithmetic Practice is an education app that is completely free. It holds a 5/5 rating from 1 review. > **Bottom Line:** Byeoldosa provides a high-utility, distraction-free arithmetic tool that serves its core audience well, but the 11-month development silence threatens its long-term relevance. Introducing a recurring engagement loop would unlock higher retention without compromising the app's clean, utility-first value proposition. **Best for:** Students seeking arithmetic practice and individuals looking for mental math exercises. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Ship a daily challenge mode ### Outlook: Stable The education utility market is consolidating around apps that offer consistent, gamified engagement loops. Byeoldosa remains advantaged by its clean, zero-monetization design, but the lack of recent feature updates leaves it exposed to rivals that can iterate faster. - 馃敶 The 11-month development gap suggests a maintenance-only posture, which limits the app's ability to compete with more active, feature-rich education rivals. - 馃煝 The clean, ad-free utility model remains a strong differentiator for users who reject the aggressive monetization common in the education category. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 5/5 | | Total Reviews | 1 | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Byeoldosa: Arithmetic Practice** (this app) | 5/5 | N/A | Hyekyung Jeong | | [ALPA: Lernspiele f眉r Kinder](https://marlvel.ai/apps/alpa-lernspiele-fur-kinder) | N/A/5 | N/A | ALPA Kids OU | | [ATPdigital (Legacy)](https://marlvel.ai/apps/atpdigital-legacy) | 2.0/5 | n/a | Bristol Groundschool International Ltd | | [Catbus Student](https://marlvel.ai/apps/catbus-student) | 4.1/5 | N/A | Cohota Join Stock Company | | [Chinese Tibetan Dictionary](https://marlvel.ai/apps/chinese-tibetan-dictionary) | 5.0/5 | Thrilled | Lobsang Monlam16922404891 | | [Insights to Behavior](https://marlvel.ai/apps/insights-to-behavior) | N/A/5 | N/A | Insights to Behavior | ## Company Profile - **Developer:** Hyekyung Jeong ## Data Sources & Links - **App Store ID:** 6443646489 - **Sources:** App store metadata. ## Related Intel Reports - [*ALPA: Lernspiele f眉r Kinder*](https://marlvel.ai/apps/alpa-lernspiele-fur-kinder) (ALPA Kids OU) 路 N/A Rating - [*ATPdigital (Legacy)*](https://marlvel.ai/apps/atpdigital-legacy) (Bristol Groundschool International Ltd) 路 2.0/5 Rating - [*Catbus Student*](https://marlvel.ai/apps/catbus-student) (Cohota Join Stock Company) 路 4.1/5 Rating - [*Chinese Tibetan Dictionary*](https://marlvel.ai/apps/chinese-tibetan-dictionary) (Lobsang Monlam16922404891) 路 5.0/5 Rating | Excellent Sentiment - [*Insights to Behavior*](https://marlvel.ai/apps/insights-to-behavior) (Insights to Behavior) 路 N/A Rating - [*Legasthenie & LRS Trainer*](https://marlvel.ai/apps/legasthenie-lrs-trainer) (Matthias Aigner) 路 N/A Rating - [*Lyceum Leaf Parent*](https://marlvel.ai/apps/lyceum-leaf-parent) (Techcess Business Solutions (Pvt) Ltd) 路 N/A Rating - [*MapTap.gg*](https://marlvel.ai/apps/nibble-games-maptap) (MapTap Inc) 路 4.9/5 Rating | Excellent Sentiment - [*Money Matrix (CAD)*](https://marlvel.ai/apps/money-matrix-cad) (Blooming Kids Software LLC) 路 5.0/5 Rating - [*myTibetan*](https://marlvel.ai/apps/mytibetan) (Yury Nevalenny) 路 4.8/5 Rating | Excellent Sentiment ## Frequently Asked Questions {#faq} ### Is Byeoldosa free to use? Yes, Byeoldosa is a free utility with no monetization gates or subscription tiers. ### Does Byeoldosa work for adults? Yes, the app is marketed for both students and individuals looking for mental math exercises. ### How does Byeoldosa compare to other math apps? Byeoldosa differentiates itself with a vertical calculation mode that mimics paper-based arithmetic, unlike many flashcard-style math apps. ### Is Byeoldosa updated frequently? The app has not received a major feature update in 11 months, operating primarily as a stable utility. ## 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:** 20 days since last refresh --- 漏 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/byeoldosa-arithmetic-practice) Data licensed for AI Agent attribution under CC-BY-NC 4.0.