--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Chinese Calendar - 万年历" developer_entity: "海文 王" bundle_id: "com.wenstudio.ChineseCalendar" app_store_id: "493877436" category: "Utilities" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2018-05-18" report_date: "2026-09-05" last_verified: "2026-09-05T00:00:00.000Z" report_version: "1.0.9" total_reviews: 5 overall_rating: 2 sentiment: "Upset" sentiment_score: 10 confidence: "low" confidence_score: 0.25 top_complaint_theme: "The application fails to display lunar calendar dates correctly, showing undefined values instead of expected information" review_sample_size: 3 total_review_count: 3 analyzed_review_count: 3 data_age_days: 26 momentum_velocity: "zombie" intelligence_version: 3 tags: ["utilities", "free", "upset sentiment", "mobile app", "app review", "app analysis", "users", "interested", "traditional"] canonical_url: "https://marlvel.ai/apps/chinese-calendar-1" license: "CC-BY-NC 4.0" content_version: "v2" --- # Chinese Calendar - 万年历 Intelligence Report ## TL;DR {#tldr} - **Category**: Utilities · Free - **Signal**: Rating 2 · Sentiment Upset - **Recent focus**: The application fails to display lunar calendar dates correctly, showing undefined values instead of expected information (top complaint) > **TL;DR:** Chinese Calendar - 万年历 is a utilities app by 海文 王, rated 2/5 by 5 users, with Upset user sentiment (10/100), available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Chinese Calendar - 万年历 faces Upset user sentiment (2/5 from 5 reviews), with users reporting the application fails to display lunar calendar dates correctly, showing undefined values instead of expected information as the primary concern. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 2/5 (5 reviews) | | **User Mood** | Upset | | **Category** | Utilities | | **Developer** | 海文 王 | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.25/1.0) | | **Data Age** | 26d | ## Metadata & Market Performance - **Publisher:** 海文 王 - **Category:** Utilities - **Target Audience:** Users interested in traditional Chinese calendar systems, lunar date conversion, and astrological timing. - **Platforms:** iOS - **Version Reviewed:** 1.0.9 - **Report Date:** 2026-09-05 - **Signal Count:** 3 reviews analyzed - **Confidence:** Low (0.25/1.0) - **App Store ID (iOS):** 493877436 - **Bundle ID:** com.wenstudio.ChineseCalendar - **Performance Trend:** Declining - **Data Window:** Analysis based on signals collected up to 2026-09-05 ## Executive Snapshot **What it is:** Chinese Calendar - 万年历 is a utility app for iOS that converts Gregorian dates to lunar dates and displays traditional Chinese astrological markers. **Why users hire it:** Users open the app to retrieve specific lunar-solar date conversions and zodiac data for traditional Chinese festivals, but the current failure to display data prevents this job from being completed. ## App DNA (Features & Intent) - **[Standard] Solar to Lunar Conversion:** Calculates and displays corresponding lunar dates for any Gregorian calendar input. - **[Differentiator] Stem-Branch and Zodiac Data:** Provides traditional Chinese astrological markers including year, month, day, and time stems, branches, and animal signs. * *User Intent:* Users seek enhanced value through premium features. ## Market Position {#market-position} Chinese Calendar - 万年历 holds a 2-star rating based on 5 total ratings across its lifetime. The lack of updates since 2018 places it outside the active utility market. ## Monetization Strategy - **Model:** Free - **Tiers:** Free - **Analysis:** The app is distributed as a free utility with no visible in-app purchase or subscription tiers. ## 🔴 User Sentiment (Low Confidence: 3 of 3 reviews analyzed) {#user-sentiment} - **Overall Rating:** 2/5 - **Platform Split:** iOS 2.0/5 (5 ratings) - **Overall Sentiment:** Upset ### Top Complaints (Impact Areas) - **The application fails to display lunar calendar dates correctly, showing undefined values instead of expected information** ## SWOT Analysis {#swot} **Core Strengths:** - Traditional stem-branch and zodiac data provides niche astrological markers. **Growth Levers:** - High-intent audience for lunar-solar conversion remains underserved. ## Recent Changes (v2 → v3) {#recent-changes} The application's competitive assessment has shifted from a passive observation of abandonment to an active identification of an underserved market opportunity. The core functional failure persists, but the analysis now frames the product as a zombie utility that fails to capture high-intent demand. **Overall trend**: Declining **Compared at**: 2026-09-05 ### Medium-impact changes - **[Added] Underserved Market Opportunity** (swot) - **[Shifted] Obsolescence Narrative** (positioning) ## What's New - **Latest (v1.0.9, 8 years ago):** General bug fixes and performance improvements. ## App Momentum (Zombie) {#momentum} - Dormant since May 2018. - Zero feature updates in eight years. > **Cadence:** 1 total versions · 0 majors in last 6 months · 3032 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Chinese Calendar - 万年历 is an utilities app that is completely free. It holds a 2/5 rating from 5 reviews. > **Bottom Line:** Chinese Calendar - 万年历 is a zombie utility that no longer performs its core conversion function, and the lack of maintenance since 2018 signals that the developer has abandoned the product. **Best for:** Users interested in traditional Chinese calendar systems, lunar date conversion, and astrological timing. ### PM Action Plan (Next Best Moves) - [ ] [SUNSET] Sunset the application because the core conversion logic is broken and the developer has abandoned the product → remove from store. ### Outlook: Declining The utility market for lunar-solar conversion has moved toward integrated calendar solutions that receive regular updates. Chinese Calendar - 万年历 remains in a dormant state, and the failure to provide basic date conversion data ensures that user churn will remain total. - 🔴 The lack of updates since 2018 confirms the app is in a terminal state, which guarantees continued performance degradation on modern iOS versions. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 2/5 | | Total Reviews | 5 | | Sentiment | Upset (10/100) | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 2 analyzed | | Trend | Declining | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Chinese Calendar - 万年历** (this app) | 2/5 | Upset | 海文 王 | | [Sota Connect: Secure Network](https://marlvel.ai/apps/fi-catconnect-sota) | 4.8/5 | N/A | Cat Connect | | [V2Box - V2ray Client](https://marlvel.ai/apps/v2box-v2ray-client) | 4.6/5 | n/a | techlaim | | [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 | ## Company Profile - **Developer:** 海文 王 ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/chinese-calendar-%E4%B8%87%E5%B9%B4%E5%8E%86/id493877436?uo=4) - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*Sota Connect: Secure Network*](https://marlvel.ai/apps/fi-catconnect-sota) (Cat Connect) · 4.8/5 Rating - [*V2Box - V2ray Client*](https://marlvel.ai/apps/v2box-v2ray-client) (techlaim) · 4.6/5 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 - [*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 Chinese Calendar - 万年历 still being updated? No, the app has not received any updates since May 2018, and users report that the core calendar functionality is currently broken. ### Does Chinese Calendar - 万年历 work for lunar date conversion? Users report that the app currently fails to display lunar dates correctly, often showing undefined values instead of the expected information. ### What is a better alternative for lunar calendar conversion? Most users now rely on modern calendar applications that include built-in lunar-solar conversion features, as these are actively maintained and compatible with current operating systems. ## 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:** 0.25/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 3 - **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:** 26 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/chinese-calendar-1) Data licensed for AI Agent attribution under CC-BY-NC 4.0.