--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Lunar Calendar 365" developer_entity: "Duy Son Phan" bundle_id: "com.sonsoftware.lunarcalendar" app_store_id: "6755834467" category: "Lifestyle" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2025-11-30" report_date: "2026-08-26" last_verified: "2026-08-26T00:00:00.000Z" report_version: "1.0" total_reviews: 0 confidence: "low" confidence_score: 0.05 data_age_days: 36 momentum_velocity: "zombie" intelligence_version: 3 tags: ["lifestyle", "free", "mobile app", "app review", "app analysis", "individuals", "seeking", "track"] canonical_url: "https://marlvel.ai/apps/lunar-calendar-365" license: "CC-BY-NC 4.0" content_version: "v2" --- # Lunar Calendar 365 Intelligence Report ## TL;DR {#tldr} - **Category**: Lifestyle · Free > **TL;DR:** Lunar Calendar 365 is a lifestyle app by Duy Son Phan, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Lunar Calendar 365 is a lifestyle app by Duy Son Phan. ## Quick Facts | Fact | Value | | :--- | :--- | | **Category** | Lifestyle | | **Developer** | Duy Son Phan | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.05/1.0) | | **Data Age** | 36d | ## Metadata & Market Performance - **Publisher:** Duy Son Phan - **Category:** Lifestyle - **Target Audience:** Individuals seeking to track traditional holidays, festivals, and lunar-based dates alongside the standard solar calendar. - **Platforms:** iOS - **Version Reviewed:** 1.0 - **Report Date:** 2026-08-26 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.05/1.0) - **App Store ID (iOS):** 6755834467 - **Bundle ID:** com.sonsoftware.lunarcalendar - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-08-26 ## Executive Snapshot **What it is:** Lunar Calendar 365 is a dual-system date utility for iOS that displays solar and lunar calendars simultaneously. **Why users hire it:** The app removes the friction of manually converting dates for traditional holidays and festivals across multiple cultural calendars. ## App DNA (Features & Intent) - **[Standard] Dual Calendar View:** Displays solar and lunar date systems simultaneously on the main interface. * *User Intent:* Users expect intelligent, adaptive experiences that learn from their behavior. - **[Differentiator] Moon Phase Display:** Visualizes current moon phase with specific illumination percentage data. - **[Differentiator] Multilingual Support:** Interface available in Vietnamese, English, Chinese, and Korean. * *User Intent:* Users expect intelligent, adaptive experiences that learn from their behavior. ## Market Position {#market-position} Lunar Calendar 365 occupies a niche in the Lifestyle category, currently functioning as a static utility with no recorded updates since its November 2025 release. ## Monetization Strategy - **Model:** Free - **Tiers:** Free access to all features - **Analysis:** The app is currently offered as a free utility with no visible monetization gates. ## SWOT Analysis {#swot} **Core Strengths:** - Multilingual interface (Vietnamese, English, Chinese, Korean) targets specific cross-cultural user segments. **Growth Levers:** - Localized festival notification triggers could capture users currently using generic calendar apps. ## Recent Changes (v2 → v3) {#recent-changes} The app remains in a static, maintenance-free state with no feature or pricing changes recorded since the November 2025 launch. The primary shift is a reclassification of the product outlook from declining to stable, reflecting its status as a fixed utility. **Overall trend**: Stable **Compared at**: 2026-08-26 ### Medium-impact changes - **[Shifted] Outlook Trend Reclassification** (positioning) ## App Momentum (Zombie) {#momentum} - No updates since November 2025 launch. > **Cadence:** 1 total versions · 0 majors in last 6 months · 269 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Lunar Calendar 365 is a lifestyle app that is completely free. > **Bottom Line:** The lack of development since the November 2025 launch suggests this app is currently a static utility rather than an active product. A pivot to active maintenance or a sunset decision would clarify its role for existing users. **Best for:** Individuals seeking to track traditional holidays, festivals, and lunar-based dates alongside the standard solar calendar. ### PM Action Plan (Next Best Moves) - [ ] [MAINTAIN] Audit user retention metrics because the app has been dormant for 269 days → determine if the product still serves an active base ### Outlook: Stable The calendar utility market is consolidating around apps that integrate with system-level reminders and frequent holiday updates. Lunar Calendar 365 remains exposed due to its lack of recent development, which risks user churn to more dynamic alternatives. - ⚪ The app has remained in a maintenance-free state for 269 days, indicating a static product lifecycle rather than an active development cadence. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Total Reviews | 0 | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Trend | Stable | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Lunar Calendar 365** (this app) | N/A/5 | N/A | Duy Son Phan | | [Alarmy - Loud alarm clock](https://marlvel.ai/apps/alarmy-loud-alarm-clock) | 4.8/5 | Excited | Delight Room Co., Ltd. | | [Journey - Diary, Journal](https://marlvel.ai/apps/com-journey-ios-app) | 4.6/5 | Excited | Two App Studio Pte. Ltd. | | [Tinder Dating App: Date & Chat](https://marlvel.ai/apps/tinder-dating-app-date-chat) | 4.0/5 | n/a | Tinder LLC | | [Alarmie: Easy Rise Alarm Clock](https://marlvel.ai/apps/alarmie-easy-rise-alarm-clock) | 4.4/5 | Mixed | Jintian Wang | | [AlarmMon ( alarm clock )](https://marlvel.ai/apps/alarmmon-alarm-clock) | 4.3/5 | n/a | Malang Studio Co. Ltd, | ## Company Profile - **Developer:** Duy Son Phan ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/lunar-calendar-365/id6755834467?uo=4) - **Sources:** App store metadata. ## Related Intel Reports - [*Alarmy - Loud alarm clock*](https://marlvel.ai/apps/alarmy-loud-alarm-clock) (Delight Room Co., Ltd.) · 4.8/5 Rating | Positive Sentiment - [*Journey - Diary, Journal*](https://marlvel.ai/apps/com-journey-ios-app) (Two App Studio Pte. Ltd.) · 4.6/5 Rating | Positive Sentiment - [*Tinder Dating App: Date & Chat*](https://marlvel.ai/apps/tinder-dating-app-date-chat) (Tinder LLC) · 4.0/5 Rating - [*Alarmie: Easy Rise Alarm Clock*](https://marlvel.ai/apps/alarmie-easy-rise-alarm-clock) (Jintian Wang) · 4.4/5 Rating - [*AlarmMon ( alarm clock )*](https://marlvel.ai/apps/alarmmon-alarm-clock) (Malang Studio Co. Ltd,) · 4.3/5 Rating - [*Amora: A Hint of Your Soulmate*](https://marlvel.ai/apps/amora-a-hint-of-your-soulmate) (Lit Apps LLC (Mobile)) · 4.7/5 Rating - [*Swiftime*](https://marlvel.ai/apps/swiftime) (MEDIANO Co.,Ltd.) · 4.5/5 Rating | Positive Sentiment - [*마주*](https://marlvel.ai/apps/an-offline-network-where-you-meet-through-qr-codes) (lvher) · N/A Rating - [*모앗*](https://marlvel.ai/apps/moat-moatapp) (JUNSEOK LEE) · N/A Rating - [*야기*](https://marlvel.ai/apps/tistory-88yhtserof-yagi) (Yunhwi Lim) · N/A Rating ## Frequently Asked Questions {#faq} ### Is Lunar Calendar 365 free to use? Yes, the app is currently offered as a free utility with all features accessible without monetization gates. ### Does Lunar Calendar 365 support languages other than English? Yes, the app supports Vietnamese, English, Chinese, and Korean. ### Is Lunar Calendar 365 still being updated? No, the app has not received an update since its initial release in November 2025. ## 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:** 36 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/lunar-calendar-365) Data licensed for AI Agent attribution under CC-BY-NC 4.0.