--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Orthodox Calendar" developer_entity: "David Leselidze" bundle_id: "com.holytrinityorthodox.orthodoxcalendar" app_store_id: "381641703" category: "Lifestyle" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2024-08-03" report_date: "2026-09-14" last_verified: "2026-09-14T00:00:00.000Z" report_version: "1.9" total_reviews: 1667 overall_rating: 4.8 sentiment: "Thrilled" sentiment_score: 85 confidence: "high" confidence_score: 0.8 top_praise_theme: "Comprehensive daily content including scripture readings and saint biographies provides a complete spiritual resource for daily prayer" top_complaint_theme: "Lack of support for the Revised Julian calendar forces users to manually adjust dates for their parish" review_sample_size: 99 total_review_count: 99 analyzed_review_count: 99 data_age_days: 17 momentum_velocity: "zombie" intelligence_version: 2 tags: ["lifestyle", "free", "thrilled sentiment", "mobile app", "app review", "app analysis", "members", "orthodox", "christian"] canonical_url: "https://marlvel.ai/apps/orthodox-calendar-1" license: "CC-BY-NC 4.0" content_version: "v2" --- ## ⚠ Content Warning This report covers topics classified as sensitive (religion). Information is aggregated from public sources for informational purposes only. Information is provided for context only and is not professional advice. --- # Orthodox Calendar Intelligence Report ## TL;DR {#tldr} - **Category**: Lifestyle · Free - **Signal**: Rating 4.8 · Sentiment Thrilled - **Recent focus**: Lack of support for the Revised Julian calendar forces users to manually adjust dates for their parish (top complaint) · Comprehensive daily content including scripture readings and saint biographies provides a complete spiritual resource for daily prayer (top praise) > **TL;DR:** Orthodox Calendar is a lifestyle app by David Leselidze, rated 4.8/5 by 1.7K users, with Thrilled user sentiment (85/100), available on iOS & Android. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Orthodox Calendar maintains Thrilled user sentiment (4.8/5 from 1.7K reviews), with users consistently praising comprehensive daily content including scripture readings and saint biographies provides a complete spiritual resource for daily prayer. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.8/5 (1.7K reviews) | | **User Mood** | Thrilled | | **Category** | Lifestyle | | **Developer** | David Leselidze | | **Pricing** | Free | | **Platforms** | iOS & Android | | **Confidence** | High (0.8/1.0) | | **Data Age** | 17d | ## Metadata & Market Performance - **Publisher:** David Leselidze - **Category:** Lifestyle - **Target Audience:** Members of the Orthodox Christian faith who follow the Julian calendar and require daily access to liturgical texts. - **Platforms:** iOS & Android - **Version Reviewed:** 1.6 - **Report Date:** 2026-09-14 - **Signal Count:** 99 reviews analyzed - **Confidence:** High (0.8/1.0) - **App Store ID (iOS):** 381641703 - **Bundle ID:** com.holytrinityorthodox.orthodoxcalendar - **Google Play ID:** com.holytrinityorthodox.orthodoxcalendar - **Data Window:** Analysis based on signals collected up to 2026-09-14 ## Executive Snapshot **What it is:** Orthodox Calendar is a liturgical utility for Orthodox Christians that provides daily scripture, saint lives, and Julian calendar dates on iOS and Android. **Why users hire it:** It replaces manual calendar tracking and physical book references with a single, bilingual digital interface that supports daily prayer habits. ## App DNA (Features & Intent) - **[Differentiator] Julian Calendar Integration:** Displays liturgical dates and feasts based on the Julian system, establishing brand authority for traditionalist practitioners. - **[Standard] Liturgical Content Library:** Provides access to lives of saints, icons, and prayers, compounding daily session frequency. * *User Intent:* Users are motivated by consistent progression and daily incentives. - **[Standard] Bilingual Support:** Interface and content available in English and Russian, expanding the addressable market. * *User Intent:* Users expect intelligent, adaptive experiences that learn from their behavior. ## Market Position {#market-position} Orthodox Calendar occupies a specialized niche in the Lifestyle category, maintaining a 4.8 rating on Android and 4.79 on iOS. Its authority rests on the Julian calendar integration, which serves as a primary utility for traditionalist users. ## Monetization Strategy - **Model:** Free - **Tiers:** Fully free access to all content - **Analysis:** The app operates as a non-monetized utility, likely supported by parish community contributions rather than commercial revenue. ## 🟢 User Sentiment (High Confidence: 99 of 99 reviews analyzed) {#user-sentiment} - **Overall Rating:** 4.8/5 - **Platform Split:** iOS 4.8/5 (118 ratings) | Android 4.8/5 (1.5K ratings) - **Overall Sentiment:** Thrilled ### Top Praises - **Comprehensive daily content including scripture readings and saint biographies provides a complete spiritual resource for daily prayer** - **Bilingual support for English and Russian allows users to switch languages and compare texts during daily study** - **The inclusion of Saint Theophan the Recluse daily thoughts adds significant depth to the existing liturgical calendar** ### Top Complaints (Impact Areas) - **Lack of support for the Revised Julian calendar forces users to manually adjust dates for their parish** ## SWOT Analysis {#swot} **Core Strengths:** - Julian calendar integration creates a defensible barrier for traditionalist practitioners. - Bilingual English-Russian support expands the addressable market to international households. - Comprehensive daily content library drives high daily session frequency. **Growth Levers:** - Dark mode implementation would reduce eye strain during early morning or late night use. - Search functionality for saints and feast days would reduce manual navigation friction. - Annual overview view would assist users in planning upcoming feast and fast days. ## What's New - **Latest (v1.9, 2 years ago):** Updated app to maintain compliance with Android platform requirements. - **Last Major (v1.6, 3 years ago):** Reverted to the wheel-style DatePicker interface. ## App Momentum (Zombie) {#momentum} - Ships maintenance updates for platform compliance. - Last major release occurred two years ago. > **Cadence:** 2 total versions · 0 majors in last 6 months · 772 days since last update · 604 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} Orthodox Calendar is a market-leading lifestyle app that is completely free. With a 4.8/5 rating from 1.7K reviews, it delivers strong user satisfaction. > **Bottom Line:** Resolving server-side connectivity issues would stabilize the daily prayer habit and reduce the churn risk currently driven by bandwidth errors. Prioritizing offline access would unlock higher retention among users in low-connectivity environments. **Best for:** Members of the Orthodox Christian faith who follow the Julian calendar and require daily access to liturgical texts. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Migrate content to local storage because connectivity dependency is the top-cited barrier to reliable daily use → increase session reliability ### Outlook: Stable Orthodox Calendar remains a stable utility for its target audience, but its reliance on server-side connectivity leaves it vulnerable to churn. Addressing technical stability and calendar customization is essential to maintaining its position as the primary digital tool for the faithful. - 🔴 Server-side bandwidth errors disrupt the daily prayer habit, which creates a persistent barrier to reliable daily use. - 🟢 The inclusion of patristic commentary adds depth to the liturgical calendar, reinforcing the app's value as a daily spiritual resource. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.8/5 | | Total Reviews | 1.7K | | Sentiment | Thrilled (85/100) | | Confidence | High | | Pricing Model | Free | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Orthodox Calendar** (this app) | 4.8/5 | Thrilled | David Leselidze | | [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:** David Leselidze - **Website:** [https://www.holytrinityorthodox.com](https://www.holytrinityorthodox.com) - **Social:** [YouTube](https://www.youtube.com/user/HolyTrinitySermons) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/orthodox-calendar/id381641703?uo=4) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=com.holytrinityorthodox.orthodoxcalendar&hl=en&gl=us) - **Dev Site:** [Official Website](https://www.holytrinityorthodox.com) - **Sources:** Developer website content, About us / company information, App store metadata, User reviews. ## 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)) · 4.6/5 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 ## 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:** 0.8/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 99 - **Data Sources:** user reviews, developer website, company about page, 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/orthodox-calendar-1) Data licensed for AI Agent attribution under CC-BY-NC 4.0.