--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Lich Van Nien 2026 - Am Lich" developer_entity: "SON TUNG" bundle_id: "com.sontung.vietcalendar" app_store_id: "527023921" category: "Productivity" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2025-09-08" report_date: "2026-09-13" last_verified: "2026-09-13T00:00:00.000Z" report_version: "17.1" total_reviews: 98 overall_rating: 4.6 sentiment: "Thrilled" sentiment_score: 90 confidence: "medium" confidence_score: 0.6 top_praise_theme: "The offline functionality allows users to access calendar information without needing a constant internet connection" top_complaint_theme: "Users report dissatisfaction with the inclusion of non-Vietnamese cultural imagery within the traditional calendar interface" review_sample_size: 42 total_review_count: 42 analyzed_review_count: 42 data_age_days: 17 momentum_velocity: "zombie" intelligence_version: 2 tags: ["productivity", "free", "thrilled sentiment", "mobile app", "app review", "app analysis", "vietnamese", "speakers", "seeking"] canonical_url: "https://marlvel.ai/apps/lich-van-nien-2026-am-lich" license: "CC-BY-NC 4.0" content_version: "v2" --- # Lich Van Nien 2026 - Am Lich Intelligence Report ## TL;DR {#tldr} - **Category**: Productivity · Free - **Signal**: Rating 4.56 · Sentiment Thrilled - **Recent focus**: Users report dissatisfaction with the inclusion of non-Vietnamese cultural imagery within the traditional calendar interface (top complaint) · The offline functionality allows users to access calendar information without needing a constant internet connection (top praise) > **TL;DR:** Lich Van Nien 2026 - Am Lich is a productivity app by SON TUNG, rated 4.56/5 by 98 users, with Thrilled user sentiment (90/100), available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Lich Van Nien 2026 - Am Lich maintains Thrilled user sentiment (4.56/5 from 98 reviews), with users consistently praising the offline functionality allows users to access calendar information without needing a constant internet connection. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.56/5 (98 reviews) | | **User Mood** | Thrilled | | **Category** | Productivity | | **Developer** | SON TUNG | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Medium (0.6/1.0) | | **Data Age** | 17d | ## Metadata & Market Performance - **Publisher:** SON TUNG - **Category:** Productivity - **Target Audience:** Vietnamese speakers seeking to track lunar dates, cultural rituals, and traditional astrological information. - **Platforms:** iOS - **Version Reviewed:** 17.1 - **Report Date:** 2026-09-13 - **Signal Count:** 42 reviews analyzed - **Confidence:** Medium (0.6/1.0) - **App Store ID (iOS):** 527023921 - **Bundle ID:** com.sontung.vietcalendar - **Data Window:** Analysis based on signals collected up to 2026-09-13 ## Executive Snapshot **What it is:** Lich Van Nien 2026 - Am Lich is a Vietnamese lunar and solar calendar utility for iOS, providing date conversion and traditional astrological data. **Why users hire it:** The app removes the connectivity dependency for users needing to track traditional Vietnamese lunar dates and rituals in daily life. ## App DNA (Features & Intent) - **[Standard] Lunar and Solar Calendar:** Dual-view calendar system displaying both Gregorian and Vietnamese lunar dates. - **[Differentiator] Astrological and Cultural Data:** Displays daily Can Chi, zodiac signs, and auspicious hours. * *User Intent:* Users are motivated by consistent progression and daily incentives. - **[Differentiator] Spiritual and Ritual Content:** Provides access to traditional prayer texts and lifelong horoscope readings. * *User Intent:* Users seek enhanced value through premium features. ## Market Position {#market-position} Lich Van Nien 2026 - Am Lich holds a 4.56-star rating across 98 total ratings. The lack of updates for over 370 days signals a maintenance-only posture that limits competitive growth. ## Monetization Strategy - **Model:** Free - **Tiers:** Free access to all features - **Analysis:** The app operates as a free utility with no visible subscription or IAP gates, relying on broad user reach for ad revenue. ## 🟢 User Sentiment (Medium Confidence: 42 of 42 reviews analyzed) {#user-sentiment} - **Overall Rating:** 4.56/5 - **Platform Split:** iOS 4.6/5 (98 ratings) - **Overall Sentiment:** Thrilled ### Top Praises - **The offline functionality allows users to access calendar information without needing a constant internet connection** - **Clean and simple interface design makes navigating the Vietnamese calendar features straightforward for all users** - **Comprehensive cultural content provides meaningful and accurate information regarding traditional Vietnamese astrology and lunar dates** ### Top Complaints (Impact Areas) - **Users report dissatisfaction with the inclusion of non-Vietnamese cultural imagery within the traditional calendar interface** ## SWOT Analysis {#swot} **Core Strengths:** - Offline-first architecture removes connectivity dependencies **Growth Levers:** - Localized UI refinement by replacing non-Vietnamese cultural imagery ## What's New - **Latest (v17.1, 1 years ago):** General bug fixes and stability improvements. ## App Momentum (Zombie) {#momentum} - Quiet 12 months, bug fixes only. - Last major release over 1 year ago. > **Cadence:** 1 total versions · 0 majors in last 6 months · 369 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Lich Van Nien 2026 - Am Lich is a market-leading productivity app that is completely free. With a 4.56/5 rating from 98 reviews, it delivers strong user satisfaction. > **Bottom Line:** The offline-first design retains a stable user base, but the year-long development silence leaves the app vulnerable to more active rivals. Addressing cultural imagery and readability would stabilize sentiment while the developer determines if further feature investment is viable. **Best for:** Vietnamese speakers seeking to track lunar dates, cultural rituals, and traditional astrological information. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Audit UI assets to replace non-Vietnamese imagery because user complaints flag cultural misalignment → improve sentiment ### Outlook: Stable The Vietnamese calendar utility market is currently stable, but the lack of feature updates for over a year leaves Lich Van Nien 2026 - Am Lich exposed to competitors. The PM should prioritize low-effort visual refinements to maintain the current user base while assessing the viability of long-term feature development. - ⚪ The 12-month development silence suggests a maintenance-only posture, which preserves the current user base but prevents new feature-driven growth. - 🟢 High user satisfaction with the offline-first utility keeps the app relevant for daily use despite the lack of recent feature expansion. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.56/5 | | Total Reviews | 98 | | Sentiment | Thrilled (90/100) | | Confidence | Medium | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Lich Van Nien 2026 - Am Lich** (this app) | 4.56/5 | Thrilled | SON TUNG | | [Mitsu: AI Life Coach](https://marlvel.ai/apps/mitsu-ai-life-coach) | N/A/5 | N/A | C2 Insights | | [ChatGPT](https://marlvel.ai/apps/chatgpt) | 4.8/5 | n/a | OpenAI OpCo, LLC | | [HitWave](https://marlvel.ai/apps/ciendor-applications-hitwave) | 2.6/5 | Mixed | Ciendor Holdings Corp. LTD | | [Paper: Sketch, Draw & Create](https://marlvel.ai/apps/paper-sketch-draw-create) | 4.6/5 | N/A | Evernote Corporation | | [Pattrn - Discipline Tracker](https://marlvel.ai/apps/pattrn-discipline-tracker) | 4.8/5 | Thrilled | Pedro Schott | ## Company Profile - **Developer:** SON TUNG - **Website:** [https://sontung.app/](https://sontung.app/) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/lich-van-nien-2026-am-lich/id527023921?uo=4) - **Dev Site:** [Official Website](https://sontung.app/) - **Sources:** Developer website content, App store metadata, User reviews. ## Related Intel Reports - [*Mitsu: AI Life Coach*](https://marlvel.ai/apps/mitsu-ai-life-coach) (C2 Insights) · N/A Rating - [*ChatGPT*](https://marlvel.ai/apps/chatgpt) (OpenAI OpCo, LLC) · 4.8/5 Rating - [*HitWave*](https://marlvel.ai/apps/ciendor-applications-hitwave) (Ciendor Holdings Corp. LTD) · 2.6/5 Rating - [*Paper: Sketch, Draw & Create*](https://marlvel.ai/apps/paper-sketch-draw-create) (Evernote Corporation) · 4.6/5 Rating - [*Pattrn - Discipline Tracker*](https://marlvel.ai/apps/pattrn-discipline-tracker) (Pedro Schott) · 4.8/5 Rating | Excellent Sentiment - [*Perplexity - AI Search & Chat*](https://marlvel.ai/apps/perplexity-ai-search-chat) (Perplexity AI, Inc.) · 4.8/5 Rating - [*ScreenZen- Screen Time Control*](https://marlvel.ai/apps/screenzen-screen-time-control) (ScreenZen LLC) · 4.8/5 Rating | Excellent Sentiment - [*SpaceDesk App*](https://marlvel.ai/apps/spacedesk-app) (Hawsabah) · N/A Rating - [*VPN 360: Fast & Secure Proxy*](https://marlvel.ai/apps/co-infinitysoft-vpn360) (Pango GmbH) · 4.5/5 Rating - [*VPN - Super Unlimited Proxy*](https://marlvel.ai/apps/vpn-super-unlimited-proxy) (Mobile Jump Pte Ltd) · 4.7/5 Rating | Excellent Sentiment ## Frequently Asked Questions {#faq} ### Does Lich Van Nien 2026 - Am Lich require an internet connection? No, the app is designed with offline-first functionality, allowing users to access calendar information without needing a constant internet connection. ### Is Lich Van Nien 2026 - Am Lich free to use? Yes, the app is free to use and provides access to all features, including lunar/solar calendar tracking and astrological data, without subscription gates. ### Can I add my own events to the calendar? Yes, the app includes an event management feature that allows users to add personal events to the monthly calendar view. ## 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:** 0.6/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 42 - **Data Sources:** user reviews, 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:** 17 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/lich-van-nien-2026-am-lich) Data licensed for AI Agent attribution under CC-BY-NC 4.0.