--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Couple Days - D-Day Counter" developer_entity: "Changhun Lee" bundle_id: "com.levonica.CoupleDays" app_store_id: "1453314341" category: "Lifestyle" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2021-07-05" report_date: "2026-10-15" last_verified: "2026-10-15T00:00:00.000Z" report_version: "1.7" total_reviews: 2 overall_rating: 5 confidence: "low" confidence_score: 0.05 data_age_days: 30 momentum_velocity: "zombie" intelligence_version: 2 tags: ["lifestyle", "free", "mobile app", "app review", "app analysis", "couples", "looking", "track"] canonical_url: "https://marlvel.ai/apps/couple-days-d-day-counter" license: "CC-BY-NC 4.0" content_version: "v2" --- # Couple Days - D-Day Counter Intelligence Report ## TL;DR {#tldr} - **Category**: Lifestyle · Free - **Signal**: Rating 5 > **TL;DR:** Couple Days - D-Day Counter is a lifestyle app by Changhun Lee, rated 5/5 by 2 users, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Couple Days - D-Day Counter is a lifestyle app by Changhun Lee. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 5/5 (2 reviews) | | **Category** | Lifestyle | | **Developer** | Changhun Lee | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.05/1.0) | | **Data Age** | 30d | ## Metadata & Market Performance - **Publisher:** Changhun Lee - **Category:** Lifestyle - **Target Audience:** Couples looking to track relationship milestones and anniversaries through a centralized timeline. - **Platforms:** iOS - **Version Reviewed:** 1.7 - **Report Date:** 2026-10-15 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.05/1.0) - **App Store ID (iOS):** 1453314341 - **Bundle ID:** com.levonica.CoupleDays - **Data Window:** Analysis based on signals collected up to 2026-10-15 ## Executive Snapshot **What it is:** Couple Days is a relationship tracking app for couples that provides a D-Day counter, anniversary alerts, and a memory timeline on iOS. **Why users hire it:** The app removes the cognitive friction of remembering relationship milestones by providing automated, visual countdowns and alerts. ## App DNA (Features & Intent) - **[Standard] D-Day Counter:** Tracks elapsed time for relationship milestones and anniversaries. * *User Intent:* Users want visibility into their own performance and progress. - **[Standard] Anniversary Tracker:** Automated notification system for recurring relationship dates. * *User Intent:* Users want timely prompts to stay engaged without missing updates. - **[Standard] Timeline:** Chronological log of relationship memories and events. - **[Differentiator] Homescreen Widgets:** Displays D-Day countdowns directly on the iOS home screen. ## Market Position {#market-position} Couple Days holds a 5.0 rating on the App Store, though this is based on a very small sample of 2 ratings. The lack of updates since 2021 indicates a stagnant market position that does not compete with active, subscription-based rivals. ## Monetization Strategy - **Model:** Free - **Tiers:** Free version with no listed IAP - **Analysis:** The app operates as a free utility with no visible monetization gates or subscription tiers. ## SWOT Analysis {#swot} **Core Strengths:** - Homescreen widgets reinforce daily habit loop **Growth Levers:** - Introduce premium tier to unlock revenue ## What's New - **Latest (v1.7, 5 years ago):** Introduced D-Day widgets for the homescreen. ## App Momentum (Zombie) {#momentum} - No updates for over 60 months - Maintenance-mode status confirmed > **Cadence:** 1 total versions · 1 majors in last 6 months · 1928 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Couple Days - D-Day Counter is a lifestyle app that is completely free. It holds a 5/5 rating from 2 reviews. > **Bottom Line:** Couple Days remains a static utility that serves a niche audience, but its lack of updates since 2021 makes it technically vulnerable. The PM should prioritize a stability audit to prevent churn from platform-level breakages. **Best for:** Couples looking to track relationship milestones and anniversaries through a centralized timeline. ### PM Action Plan (Next Best Moves) - [ ] [MAINTAIN] Audit technical compatibility because the last update was in 2021 → prevent app-wide crashes on new iOS versions ### Outlook: Declining The relationship-tracking market is consolidating around apps that offer cloud-syncing and cross-platform access, leaving Couple Days exposed due to its static, offline-only design. Without a commitment to technical maintenance or a pivot to a sustainable revenue model, the app will continue to lose relevance to more active competitors. - 🔴 The 1928-day update gap indicates the app is in maintenance mode, which will eventually lead to technical failure on newer iOS versions. - 🔴 Lack of cloud-save functionality creates a high churn risk for users who value their relationship timeline data. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 5/5 | | Total Reviews | 2 | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 4 analyzed | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Couple Days - D-Day Counter** (this app) | 5/5 | N/A | Changhun Lee | | [Amora: A Hint of Your Soulmate](https://marlvel.ai/apps/amora-a-hint-of-your-soulmate) | 4.6/5 | N/A | Lit Apps LLC (Mobile) | | [ATLAS:EARTH: Collect Places](https://marlvel.ai/apps/atlas-earth-fun-cashback) | 4.6/5 | n/a | Atlas Reality, Inc. | | [Daily Mood Log](https://marlvel.ai/apps/daily-mood-log) | N/A/5 | N/A | Nadim Elsayed | | [Find My Location: Tracker](https://marlvel.ai/apps/com-friendslocator) | 4.2/5 | n/a | DIGITS LTD | | [Happy Home by Hiller](https://marlvel.ai/apps/happy-home-by-hiller) | 2.4/5 | n/a | Hiller Plumbing, Heating, Cooling, & Electrical | ## Company Profile - **Developer:** Changhun Lee ## Data Sources & Links - **App Store ID:** 1453314341 - **Sources:** App store metadata. ## Related Intel Reports - [*Amora: A Hint of Your Soulmate*](https://marlvel.ai/apps/amora-a-hint-of-your-soulmate) (Lit Apps LLC (Mobile)) · 4.6/5 Rating - [*ATLAS:EARTH: Collect Places*](https://marlvel.ai/apps/atlas-earth-fun-cashback) (Atlas Reality, Inc.) · 4.6/5 Rating - [*Daily Mood Log*](https://marlvel.ai/apps/daily-mood-log) (Nadim Elsayed) · N/A Rating - [*Find My Location: Tracker*](https://marlvel.ai/apps/com-friendslocator) (DIGITS LTD) · 4.2/5 Rating - [*Happy Home by Hiller*](https://marlvel.ai/apps/happy-home-by-hiller) (Hiller Plumbing, Heating, Cooling, & Electrical) · 2.4/5 Rating - [*Journey - Diary, Journal*](https://marlvel.ai/apps/com-journey-ios-app) (Two App Studio Pte. Ltd.) · 4.6/5 Rating | Positive Sentiment - [*Petまんま*](https://marlvel.ai/apps/pet) (株式会社Cavemen.jp) · N/A Rating - [*QuickHue - The easy to use Hue Remote*](https://marlvel.ai/apps/quickhue-the-easy-to-use-hue-remote) (Xonay Media) · 1.3/5 Rating - [*Spirit Talker ®*](https://marlvel.ai/apps/spirit-talker) (Spotted Ghosts) · 2.8/5 Rating - [*Umax - Become Hot*](https://marlvel.ai/apps/com-umax-tech) (Improvement Tech) · 4.5/5 Rating ## Frequently Asked Questions {#faq} ### Is Couple Days free to use? Yes, Couple Days is currently free to use with no visible in-app purchases or subscription tiers. ### Does Couple Days sync data to the cloud? Couple Days does not mention cloud-syncing capabilities in its store listing, and the app's static nature suggests it stores data locally on the device. ### What are some alternatives to Couple Days? Users looking for more active relationship trackers should consider apps that offer cloud-syncing, regular updates, and cross-platform support. ## 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:** 30 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/couple-days-d-day-counter) Data licensed for AI Agent attribution under CC-BY-NC 4.0.