--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Cardiolog - Heart Rate Monitor" developer_entity: "Napisana" bundle_id: "com.wollowup.kardio" app_store_id: "6483942269" category: "Medical" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2026-01-02" report_date: "2026-08-17" last_verified: "2026-08-17T00:00:00.000Z" report_version: "2.11" total_reviews: 7 overall_rating: 4.4 sentiment: "Upset" sentiment_score: 10 confidence: "low" confidence_score: 0.3 top_complaint_theme: "The application fails to launch consistently after the initial setup and sign-in process completes" review_sample_size: 1 total_review_count: 1 analyzed_review_count: 1 data_age_days: 45 momentum_velocity: "zombie" intelligence_version: 3 tags: ["medical", "free", "upset sentiment", "mobile app", "app review", "app analysis", "individuals", "managing", "chronic"] canonical_url: "https://marlvel.ai/apps/cardiolog-heart-rate-monitor" license: "CC-BY-NC 4.0" content_version: "v2" --- ## ⚠ Content Warning This report covers topics classified as sensitive (health). Information is aggregated from public sources for informational purposes only. This is not medical advice. Consult a qualified professional before acting on any information here. --- # Cardiolog - Heart Rate Monitor Intelligence Report ## TL;DR {#tldr} - **Category**: Medical · Free - **Signal**: Rating 4.43 · Sentiment Upset - **Recent focus**: The application fails to launch consistently after the initial setup and sign-in process completes (top complaint) > **TL;DR:** Cardiolog - Heart Rate Monitor is a medical app by Napisana, rated 4.43/5 by 7 users, with Upset user sentiment (10/100), available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Cardiolog - Heart Rate Monitor faces Upset user sentiment (4.43/5 from 7 reviews), with users reporting the application fails to launch consistently after the initial setup and sign-in process completes as the primary concern. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.43/5 (7 reviews) | | **User Mood** | Upset | | **Category** | Medical | | **Developer** | Napisana | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.3/1.0) | | **Data Age** | 45d | ## Metadata & Market Performance - **Publisher:** Napisana - **Category:** Medical - **Target Audience:** Individuals managing chronic heart conditions or those tracking daily vital signs and physical well-being. - **Platforms:** iOS - **Version Reviewed:** 2.11 - **Report Date:** 2026-08-17 - **Signal Count:** 1 review analyzed - **Confidence:** Low (0.3/1.0) - **App Store ID (iOS):** 6483942269 - **Bundle ID:** com.wollowup.kardio - **Performance Trend:** Declining - **Data Window:** Analysis based on signals collected up to 2026-08-17 ## Executive Snapshot **What it is:** Cardiolog - Heart Rate Monitor is a health-tracking utility for iOS that consolidates vital sign data from Apple Watch and external monitors. **Why users hire it:** It serves users who need a centralized dashboard to log heart rate, blood pressure, and symptoms to identify health dependencies for their doctors. ## App DNA (Features & Intent) - **[Standard] Apple Health Integration:** Consolidates heart rate, pulse, and activity data from Apple Watch and external monitors into one dashboard. - **[Differentiator] Social Health Tracking:** Allows users to add friends to monitor health metrics and activity progress together. * *User Intent:* Users seek social connection and competitive engagement with peers. - **[Standard] Symptom and Well-being Logging:** Manual entry fields for recording daily physical condition and symptoms to identify health dependencies. * *User Intent:* Users are motivated by consistent progression and daily incentives. ## Market Position {#market-position} Cardiolog - Heart Rate Monitor maintains a 4.4-star rating across 7 total ratings. The lack of updates for 227 days indicates a dormant development cycle, limiting its competitive standing against active health-tracking tools. ## Monetization Strategy - **Model:** Free - **Tiers:** Free access to all current monitoring and tracking features - **Analysis:** The app operates on a free model with no visible subscription or IAP gates in the current version. ## 🔴 User Sentiment (Low Confidence: 1 of 1 review analyzed) {#user-sentiment} - **Overall Rating:** 4.43/5 - **Platform Split:** iOS 4.4/5 (7 ratings) - **Overall Sentiment:** Upset - **Note:** The 4.43/5 store rating reflects cumulative history, while the Upset sentiment reflects recent user reviews analyzed by our AI pipeline. ### Top Complaints (Impact Areas) - **The application fails to launch consistently after the initial setup and sign-in process completes** ## SWOT Analysis {#swot} **Core Strengths:** - Apple Health integration consolidates heart rate, pulse, and activity data **Growth Levers:** - Localized health-tracking features for chronic condition management ## Recent Changes (v2 → v3) {#recent-changes} The app's competitive position has declined as the seven-month development dormancy is now categorized as a terminal maintenance-only state. The analysis has shifted from identifying potential growth opportunities to prioritizing the resolution of a critical launch failure that blocks all new user acquisition. **Overall trend**: Declining **Compared at**: 2026-08-17 ### High-impact changes - **[Shifted] Maintenance-only status** (positioning) ### Medium-impact changes - **[Shifted] Threat assessment** (swot) - **[Shifted] Prioritization of stability** (pmActionItems) ## What's New - **Latest (v2.11, 7 months ago):** Introduced social health tracking by enabling users to add friends and monitor health metrics together. ## App Momentum (Zombie) {#momentum} - Ships no updates for 7 months. - Introduced social health tracking features. > **Cadence:** 1 total versions · 1 majors in last 6 months · 227 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Cardiolog - Heart Rate Monitor is a medical app that is completely free. It holds a 4.43/5 rating from 7 reviews. > **Bottom Line:** Cardiolog - Heart Rate Monitor must resolve the post-setup launch failure to prevent total user churn. Restoring core utility is the only path to retaining the current user base, as the current state renders the app unusable for new sign-ups. **Best for:** Individuals managing chronic heart conditions or those tracking daily vital signs and physical well-being. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Audit launch sequence because users report consistent failure after setup → restore core utility ### Outlook: Declining Cardiolog - Heart Rate Monitor is currently in a maintenance-only state with no active development to address critical technical regressions. The failure to launch after setup is a terminal issue for new users, and without a rapid fix, the app will likely see continued rating erosion and abandonment. - 🔴 The seven-month release gap indicates stalled development, which prevents the team from addressing critical launch failures reported by users. - 🔴 Persistent launch failures following the initial setup process create a high churn risk for new users, directly impacting the app's long-term viability. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.43/5 | | Total Reviews | 7 | | Sentiment | Upset (10/100) | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Trend | Declining | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Cardiolog - Heart Rate Monitor** (this app) | 4.43/5 | Upset | Napisana | | [필잇 - 약 알림 및 복용 기록](https://marlvel.ai/apps/app--35) | N/A/5 | N/A | Hansub Yoo | | [레어노트 - 암·희귀질환 정보](https://marlvel.ai/apps/app--629) | 5.0/5 | N/A | LifeX, Inc. | | [창고형약국 약값체크](https://marlvel.ai/apps/com-hiddenwave-yakcheck) | N/A/5 | N/A | Lowkeybase | | [용인세브란스병원](https://marlvel.ai/apps/com-severance-newys) | 1.9/5 | N/A | Yonsei University Health System | | [1001Doktor](https://marlvel.ai/apps/com-binbirdoktor-binbirdoktor) | 4.8/5 | N/A | 1001Doktor Ltd. Şti. | ## Company Profile - **Developer:** Napisana ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/cardiolog-heart-rate-monitor/id6483942269?uo=4) - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*필잇 - 약 알림 및 복용 기록*](https://marlvel.ai/apps/app--35) (Hansub Yoo) · N/A Rating - [*레어노트 - 암·희귀질환 정보*](https://marlvel.ai/apps/app--629) (LifeX, Inc.) · 5.0/5 Rating - [*창고형약국 약값체크*](https://marlvel.ai/apps/com-hiddenwave-yakcheck) (Lowkeybase) · N/A Rating - [*용인세브란스병원*](https://marlvel.ai/apps/com-severance-newys) (Yonsei University Health System) · 1.9/5 Rating - [*1001Doktor*](https://marlvel.ai/apps/com-binbirdoktor-binbirdoktor) (1001Doktor Ltd. Şti.) · 4.8/5 Rating - [*10th HiD*](https://marlvel.ai/apps/10th-hid) (Catch Dynamics, Inc.) · N/A Rating - [*12 Lead ECG Challenge*](https://marlvel.ai/apps/com-limmercreative-srtengine-12lead) (Limmer Creative) · 3.3/5 Rating - [*1-800 Contacts*](https://marlvel.ai/apps/com-1800contacts-1800contacts) (1-800 CONTACTS, Inc.) · 4.6/5 Rating - [*1MEDICINE*](https://marlvel.ai/apps/1medicine) (Matthew Culbert) · 5.0/5 Rating - [*1O Patient Portal*](https://marlvel.ai/apps/1o-patient-portal) (1st Optimal, LLC) · 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:** 0.3/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 1 - **Data Sources:** user reviews, 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:** 45 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/cardiolog-heart-rate-monitor) Data licensed for AI Agent attribution under CC-BY-NC 4.0.