Viet Lunar|Lịch Âm Việt

Viet Lunar|Lịch Âm Việt

By Anh Kiet Vo

Viet Lunar|Lịch Âm Việt is a calendar utility for Vietnamese users that integrates lunar and solar dates with event reminders on iOS and Android.

The App DNA

What makes this app unique?

It removes the friction of manually calculating lunar dates for traditional family events by automating recurring annual reminders.

For Vietnamese users seeking to track traditional lunar dates, family anniversaries, and holidays alongside their standard solar calendar.

What does it look like?

Key features

Lunar-Solar Calendar Conversionstandard

Converts between Vietnamese lunar and solar dates with a single tap.

Death Anniversary Remindersedge

Creates annual recurring events based on lunar dates for family traditions.

Cross-Platform Syncedge

Synchronizes events across mobile, tablet, and web platforms via cloud account.

How much does it cost?

freemiumFree version with ad supportPremium version via monthly, 3-month, 1-year, or lifetime subscription

The freemium model monetizes via subscription tiers while maintaining a free, ad-supported entry point to maximize user acquisition.

Velocity

Maintenance developmentperformanceUX improvementsShow more...

With only one release in the observed window and a cadence of approximately one update every 27 days, the app maintains a maintenance-level velocity. Development is currently focused on technical stability rather than new feature expansion. The latest release specifically addresses widget performance, indicating a reactive approach to maintenance rather than a proactive feature roadmap.

See all version history

Who built it?

Anh Kiet Vo

3 apps tracked · Lifestyle

Thi Lái Xe - 600 câu hỏi GPLXThi Lái Xe - 600 câu hỏi GPLXThi Lái Xe - 120 câu mô phỏngThi Lái Xe - 120 câu mô phỏng
Explore the full publisher profile

User Sentiment

What do users think recently?

Review voice lately leans excited. Users appreciate integration with google calendar provides a reliable and efficient way to manage multiple schedule events and visual design and widget layout offer a clean and intuitive experience for daily calendar tracking.

How are ratings & reviews evolving?

Google Play
4.84 · 3k
App Store
4.53 · 72

What users say, by theme

What Users Love
  • Integration with Google Calendar provides a reliable and efficient way to manage multiple schedule events
  • Visual design and widget layout offer a clean and intuitive experience for daily calendar tracking
What Frustrates Users
  • Widget display issues including date misalignment and failure to update remain a persistent user frustration
+ 1 more theme
What Users Want 1 request inside

33 of 33 recent reviews analyzed · high confidence · Excited overall

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Unlock 1 more frustration theme and 1 user request, each backed by review evidence.

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Competition

Competitive landscape for Viet Lunar|Lịch Âm Việt

How's the Lifestyle market?

Viet Lunar|Lịch Âm Việt holds a stable position in the Vietnamese Lifestyle category, currently ranked #35 Free. The app's ability to maintain a 4.5+ rating across platforms indicates strong product-market fit despite the recent widget stability issues.

The rivals identified

The Analyst's Read

Key takeaways for Viet Lunar|Lịch Âm Việt

Where is it heading?

The market for traditional calendar utilities is consolidating around tools that offer reliable, low-friction integration with primary mobile calendars. Viet Lunar|Lịch Âm Việt is currently advantaged by its strong synchronization core, but the persistent widget issues leave it exposed to rivals that prioritize platform stability over feature expansion.

  • Widget refresh failures in the latest release erode the daily habit loop, which compounds the rating drag already visible on Android.
  • The core calendar synchronization remains the most effective tool for users, sustaining the app's reputation despite technical hurdles.

The SWOT

Core Strengths
  • Cross-platform cloud synchronization anchors user data across devices.
  • Minimalist interface broadens addressable market to elderly users.
Critical Frictions 2 weaknesses inside
Growth Levers
  • Flexible notification settings for pre-event alerts could capture dissatisfied users.
Market Threats 1 threat identified

Next best moves

1 Invest · 1 Pivot

Rebuild widget refresh logic because persistent misalignment is the #1 churn risk → restore daily active habit.

+ 1 more prioritized move

The counter-intuitive read

The app's widget instability is a hidden retention lever…

Read the full take

Bottom line

Fixing the widget refresh logic would stabilize the daily habit loop that currently anchors Viet Lunar|Lịch Âm Việt against its rivals. Addressing this instability is the prerequisite for converting the existing free user base into long-term subscribers.

Unlock 2 critical frictions, 1 market threat, 1 more prioritized move and the analyst’s take.

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FAQ

Is Viet Lunar|Lịch Âm Việt suitable for elderly users?
Yes, the app is designed with a minimalist interface and accessibility settings, including adjustable font sizes, to ensure it remains user-friendly for the elderly.
Does Viet Lunar|Lịch Âm Việt support multiple Google accounts?
Currently, the app supports synchronization with only one Google account, which is a noted limitation for power users who manage multiple calendars.
Are there intrusive ads in the free version?
The app offers a free version with ad support, but users describe the interface as minimalist and comfortable, suggesting the ad implementation does not significantly disrupt the experience.
What is the main advantage of the premium version?
The premium version provides additional features and privileges, and upgrading serves as a way to support the developer's ongoing maintenance of the app.

Sources

  1. [1] Play Store reviews
  2. [2] App Store
  3. [3] Developer website, source

Report last updated

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Viet Lunar|Lịch Âm Việt, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Viet Lunar|Lịch Âm Việt Intelligence Report.” Updated Oct 5, 2026. https://marlvel.ai/apps/viet-lunar-lich-am-viet

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