--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "台股記帳本" developer_entity: "Shaowen Lu" bundle_id: "tw.idv.Lusoft.iStocks" app_store_id: "1437474799" google_play_id: "com.dns12990.stock" category: "Finance" primary_platform: "ios" primary_monetization: "Freemium" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-05-05" report_date: "2026-05-12" last_verified: "2026-05-12T00:00:00.000Z" report_version: "2.2.1" total_reviews: 4 overall_rating: 4.5 confidence: "low" confidence_score: 0.2 data_age_days: 96 momentum_velocity: "maintenance" intelligence_version: 3 competitor_count: 6 tags: ["finance", "freemium", "mobile app", "app review", "app analysis", "taiwanese", "stock", "market"] canonical_url: "https://marlvel.ai/apps/tw-idv-lusoft-istocks" license: "CC-BY-NC 4.0" content_version: "v2" --- ## ⚠ Content Warning This report covers topics classified as sensitive (finance). Information is aggregated from public sources for informational purposes only. This is not financial or investment advice. Always do your own research. --- # 台股記帳本 Intelligence Report ## TL;DR {#tldr} - **Category**: Finance · Freemium - **Signal**: Rating 4.5 > **TL;DR:** 台股記帳本 is a finance app by Shaowen Lu, rated 4.5/5 by 4 users, available on iOS & Android. > > **Marlvel.ai App Intelligence** — Independent analysis. US Market. No publisher influence. > **Key Insight:** 台股記帳本 is a finance app by Shaowen Lu. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.5/5 (4 reviews) | | **Category** | Finance | | **Developer** | Shaowen Lu | | **Pricing** | Freemium | | **Platforms** | iOS & Android | | **Confidence** | Low (0.2/1.0) | | **Data Age** | 96d | ## Metadata & Market Performance - **Publisher:** Shaowen Lu - **Category:** Finance - **Target Audience:** Taiwanese stock market investors requiring detailed transaction logging, tax calculation, and portfolio performance analysis. - **Platforms:** iOS & Android - **Version Reviewed:** 2.2.1 - **Report Date:** 2026-05-12 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.2/1.0) - **App Store ID (iOS):** 1437474799 - **Bundle ID:** tw.idv.Lusoft.iStocks - **Google Play ID:** com.dns12990.stock - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-05-12 ## Executive Snapshot **What it is:** 台股記帳本 is a finance app for Taiwanese investors to track stock transactions and calculate investment performance on iOS and Android. **Why users hire it:** Users hire this app to handle the specific, complex tax and fee structures of the Taiwan stock market that generic international trackers ignore, ensuring accurate profit reporting. ## App DNA (Features & Intent) - **[Differentiator] Automated Tax and Fee Calculation:** Calculates transaction costs including brokerage fees, securities transaction taxes, and loan interest * *User Intent:* Users prioritize data protection and trust in the platform. - **[Differentiator] Advanced Performance Metrics:** Calculates XIRR and provides pre-sale profit/loss simulation * *User Intent:* Users seek enhanced value through premium features. - **[Standard] Multi-Account Management:** Supports tracking and merging performance data across multiple investment accounts * *User Intent:* Users want visibility into their own performance and progress. ## Market Position {#market-position} The app maintains a 4.5 rating on iOS, signaling strong utility for its core niche, though the lack of Android rating data suggests a fragmented platform presence. ## Monetization Strategy - **Model:** Freemium - **Tiers:** Free tier with basic tracking and manual cloud backup, Premium subscription for advanced analytics, ad-free experience, and automated features - **Analysis:** Freemium model gates advanced analytical tools like XIRR and automated features behind a subscription to monetize power users. ## SWOT Analysis {#swot} **Core Strengths:** - Specialized local-market tax logic enables precise profit/loss reporting for Taiwanese retail investors **Growth Levers:** - Integration with local brokerage APIs would remove the manual logging bottleneck ## Recent Changes (v2 → v3) {#recent-changes} The report reflects a strategic pivot in competitive benchmarking and a clearer identification of manual entry as a primary churn risk. **Overall trend**: Stable **Compared at**: 2026-05-12 ### High-impact changes - **[Shifted] SWOT Analysis Re-alignment** (swot) - **[Shifted] Competitive Landscape Overhaul** (positioning) ### Medium-impact changes - **[Added] Home-screen Widget Gap** (features) ## What's New - **Latest (v2.2.1, 1 weeks ago):** Added SinoPac Securities statement import and enhanced market value/investment trend charts with ROI display and UI optimizations. ## App Momentum (Maintenance) {#momentum} - Last major update May 2026. - Maintains consistent local tax logic updates. > **Cadence:** 2 total versions · 1 majors in last 6 months · 7 days since last update · 8 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} 台股記帳本 is an established finance app that is free with in-app purchases. It holds a 4.5/5 rating from 4 reviews. > **Bottom Line:** The app wins on local tax precision, but the manual entry requirement limits its long-term retention, so the PM should prioritize brokerage API integration to remain competitive. **Best for:** Taiwanese stock market investors requiring detailed transaction logging, tax calculation, and portfolio performance analysis. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Integrate local brokerage APIs because manual entry is the primary churn risk → increase daily active usage. ### Feature Gaps vs Competitors - Real-time brokerage API synchronization (available in modern fintech apps but absent here) ### Outlook: Stable The market for personal finance tools is shifting toward automated, real-time data synchronization. The app's current manual-entry model leaves it exposed to churn as users migrate to platforms that eliminate the logging friction. - ⚪ The app maintains a stable update cadence, focusing on tax-logic accuracy rather than aggressive feature expansion. - 🔴 The absence of automated data feeds forces manual entry, which limits the app's ability to compete with modern, API-integrated finance platforms. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.5/5 | | Total Reviews | 4 | | Confidence | Low | | Pricing Model | Freemium | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Trend | Stable | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **台股記帳本** (this app) | 4.5/5 | N/A | Shaowen Lu | | [Statrys](https://marlvel.ai/apps/statrys) | 4.0/5 | N/A | Statrys Limited | | [CardStack | Credit Card Offers](https://marlvel.ai/apps/cardstack-credit-card-offers) | N/A/5 | N/A | SPACE ROBOTS INC | | [Currency Rates Converter Live](https://marlvel.ai/apps/currency-rates-converter-live) | 5.0/5 | N/A | Robust Research And Development Ltd. | | [Moneko - Budget Manager](https://marlvel.ai/apps/moneko-budget-manager) | N/A/5 | N/A | Aymen Ali | | [Percentrade](https://marlvel.ai/apps/percentrade) | 1.0/5 | N/A | Mehmet Bayram | ## Company Profile - **Developer:** Shaowen Lu - **Website:** [https://istock.lusoft.idv.tw/](https://istock.lusoft.idv.tw/) - **Social:** [Facebook](https://www.facebook.com/iStocksTW) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/%E5%8F%B0%E8%82%A1%E8%A8%98%E5%B8%B3%E6%9C%AC/id1437474799?uo=4) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=com.dns12990.stock&hl=en&gl=us) - **Dev Site:** [Official Website](https://istock.lusoft.idv.tw/) - **Sources:** Developer website content, App store metadata. ## Related Intel Reports - [*Statrys*](https://marlvel.ai/apps/statrys) (Statrys Limited) · 4.0/5 Rating - [*CardStack | Credit Card Offers*](https://marlvel.ai/apps/cardstack-credit-card-offers) (SPACE ROBOTS INC) · N/A Rating - [*Currency Rates Converter Live*](https://marlvel.ai/apps/currency-rates-converter-live) (Robust Research And Development Ltd.) · 5.0/5 Rating - [*Moneko - Budget Manager*](https://marlvel.ai/apps/moneko-budget-manager) (Aymen Ali) · N/A Rating - [*Percentrade*](https://marlvel.ai/apps/percentrade) (Mehmet Bayram) · 1.0/5 Rating - [*Raqamyah | رقمية*](https://marlvel.ai/apps/raqamyah) (Raqamyah Debt Crowdfunding) · 2.0/5 Rating - [*Polymarket*](https://marlvel.ai/apps/polymarket) (Polymarket) · 3.3/5 Rating - [*Kalshi: Trade News & Sports*](https://marlvel.ai/apps/kalshi-trade-news-sports) (KalshiEX LLC) · 4.7/5 Rating - [*Webull: Investing & Trading*](https://marlvel.ai/apps/webull-investing-trading) (Webull Technologies Pte. Ltd.) · 4.6/5 Rating - [*Fidelity Investments*](https://marlvel.ai/apps/fidelity-investments) (Fidelity Investments) · 4.5/5 Rating ## 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:** 0.2/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 0 - **Data Sources:** developer website, 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:** 96 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/tw-idv-lusoft-istocks) Data licensed for AI Agent attribution under CC-BY-NC 4.0.