--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "K-D Color Contrast Sensitivity" developer_entity: "King-Devick Test, LLC" bundle_id: "com.kingdevick.amd" app_store_id: "1530827184" category: "Medical" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2026-04-16" report_date: "2026-08-29" last_verified: "2026-08-29T00:00:00.000Z" report_version: "v1.2" total_reviews: 1 overall_rating: 5 confidence: "low" confidence_score: 0.2 data_age_days: 33 momentum_velocity: "maintenance" intelligence_version: 3 tags: ["medical", "free", "mobile app", "app review", "app analysis", "clinicians", "managing", "patients"] canonical_url: "https://marlvel.ai/apps/k-d-color-contrast-sensitivity" 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. --- # K-D Color Contrast Sensitivity Intelligence Report ## TL;DR {#tldr} - **Category**: Medical · Free - **Signal**: Rating 5 > **TL;DR:** K-D Color Contrast Sensitivity is a medical app by King-Devick Test, LLC, rated 5/5 by 1 users, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** K-D Color Contrast Sensitivity is a medical app by King-Devick Test, LLC. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 5/5 (1 review) | | **Category** | Medical | | **Developer** | King-Devick Test, LLC | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.2/1.0) | | **Data Age** | 33d | ## Metadata & Market Performance - **Publisher:** King-Devick Test, LLC - **Category:** Medical - **Target Audience:** Clinicians managing patients with Age-Related Macular Degeneration and patients requiring remote vision monitoring. - **Platforms:** iOS - **Version Reviewed:** v1.2 - **Report Date:** 2026-08-29 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.2/1.0) - **App Store ID (iOS):** 1530827184 - **Bundle ID:** com.kingdevick.amd - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-08-29 ## Executive Snapshot **What it is:** K-D Color Contrast Sensitivity is an iOS-based medical diagnostic tool for tracking AMD progression via color contrast charts. **Why users hire it:** The product removes the logistical friction of in-office monitoring by allowing patients to perform self-administered vision tests that sync remotely to clinical staff. ## App DNA (Features & Intent) - **[Differentiator] AMD Progression Monitoring:** Tracks disease progression from non-exudative to exudative AMD using color contrast sensitivity charts. * *User Intent:* Users seek enhanced value through premium features. - **[Differentiator] Remote Clinician Monitoring:** Enables staff to track patient screening results remotely via cloud-based data sync. * *User Intent:* Users expect seamless access across multiple devices. - **[Standard] Home-Screening Tool:** Allows patients to perform self-administered vision tests outside of the office. ## Market Position {#market-position} K-D Color Contrast Sensitivity maintains a niche position as a specialized clinical utility with a 5-star rating based on a single review. The 135-day update gap suggests the product is in a maintenance-only lifecycle. ## Monetization Strategy - **Model:** Free - **Tiers:** Free application - **Analysis:** The application functions as a free utility within a broader B2B medical technology suite, serving as a distribution point for clinical services. ## SWOT Analysis {#swot} **Core Strengths:** - Remote clinician monitoring via cloud-based data sync **Growth Levers:** - Expansion into broader ophthalmology diagnostic workflows ## Recent Changes (v2 → v3) {#recent-changes} The product's competitive outlook has shifted from a focus on hardware competition to regulatory and workflow integration, while the underlying maintenance-only development cadence remains unchanged. **Overall trend**: Stable **Compared at**: 2026-08-29 ### Medium-impact changes - **[Shifted] SWOT Analysis Re-alignment** (swot) ### Low-impact changes - **[Shifted] Clinical Positioning Pivot** (positioning) ## What's New - **Latest (vv1.2, 4 months ago):** Maintenance update focused on bug fixes and performance improvements. ## App Momentum (Maintenance) {#momentum} - Ships bug fixes only. - Last major release 4 months ago. > **Cadence:** 1 total versions · 0 majors in last 6 months · 134 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} K-D Color Contrast Sensitivity is a medical app that is completely free. It holds a 5/5 rating from 1 review. > **Bottom Line:** K-D Color Contrast Sensitivity serves as a stable B2B utility for clinical monitoring, but the maintenance-only update cadence suggests limited future investment. Prioritizing core sync reliability will defend the clinical utility of the existing user base. **Best for:** Clinicians managing patients with Age-Related Macular Degeneration and patients requiring remote vision monitoring. ### PM Action Plan (Next Best Moves) - [ ] [MAINTAIN] Audit cloud-sync reliability because the 135-day update gap risks data-loss for remote clinicians → ensure diagnostic continuity ### Outlook: Stable The market for remote diagnostic tools remains focused on stability and regulatory compliance. K-D Color Contrast Sensitivity is positioned as a specialized utility, and its current maintenance-only cadence suggests it will remain a stable, low-touch component of the broader King-Devick medical suite. - ⚪ The maintenance-only release cadence (135 days since last update) indicates a stable, low-investment posture that prioritizes existing clinical utility over new feature expansion. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 5/5 | | Total Reviews | 1 | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Trend | Stable | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **K-D Color Contrast Sensitivity** (this app) | 5/5 | N/A | King-Devick Test, LLC | | [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:** King-Devick Test, LLC - **Website:** [https://kingdevick.com](https://kingdevick.com) - **Social:** [Instagram](https://www.instagram.com/kingdevicktest) · [Facebook](https://www.facebook.com/kingdevicktech) · [X/Twitter](https://twitter.com/kingdevicktest) · [YouTube](https://www.youtube.com/watch) · [LinkedIn](https://www.linkedin.com/company/king-devick-test) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/k-d-color-contrast-sensitivity/id1530827184?uo=4) - **Dev Site:** [Official Website](https://kingdevick.com) - **Sources:** Developer website content, App store metadata. ## 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 - [*1B Pharmacy - Online Pharmacy*](https://marlvel.ai/apps/1b-pharmacy-online-pharmacy) (TRESOR HEALTHCARE PRIVATE LIMITED) · N/A Rating - [*1MEDICINE*](https://marlvel.ai/apps/1medicine) (Matthew Culbert) · 5.0/5 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:** 0.2/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 0 - **Data Sources:** 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:** 33 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/k-d-color-contrast-sensitivity) Data licensed for AI Agent attribution under CC-BY-NC 4.0.