Report updated May 13, 2026

TL;DR:Color Blindness Test Ishihara provides a standardized Ishihara-based diagnostic tool for personal and professional color vision screening, but its lack of assistive utility leaves it vulnerable to rivals that offer daily-use features. The app functions as a static diagnostic tool, but it lacks the assistive utility required to compete with established rivals, so the PM must prioritize real-time color correction features to prevent total churn..|TL;DR:Color Blindness Test Ishihara provides a standardized Ishihara-based diagnostic tool for personal and professional color vision screening, but its lack of assistive utility leaves it vulnerable to rivals that offer daily-use features. The app functions as a static diagnostic tool, but it lacks the assistive utility required to compete with established rivals, so the PM must prioritize real-time color correction features to prevent total churn..

Color Blindness Test Ishihara is an established medical app that is completely free. With a 3.0/5 rating from 1 reviews, it shows polarized user reception.

What is Color Blindness Test Ishihara?

Color Blindness Test Ishihara is a diagnostic tool for color vision deficiency using standard Ishihara plates on iOS and Android.

Users hire this app for a quick, low-friction assessment of their color vision status, but the lack of ongoing assistive utility means they churn immediately after the first test.

Current Momentum

v1.1 · 12mo ago

Maintenance
  • No major feature releases recently.
  • Maintains static diagnostic toolset.
AI-powered deep analysis surfacing high-signal insights. Still in beta, accuracy improves daily. For informational purposes only.

Active Nemesis

Color Blind Pal

Color Blind Pal

By Vincent Fiorentini

7-Day Rank Pulse 🇺🇸

Medical

No ranking data

EducationGrossing

Rating Pulse 🇺🇸

What makes this app unique?

What Does It Look Like?

How Is The App's Momentum Right Now?

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What Are The Key Features?

Ishihara Test MethodStandard

Standardized color vision assessment using Ishihara plates to identify deficiency types and severity

Personalized Vision Status ReportStandard

Aggregates test results to provide a summary of the user's color vision deficiency status

Professional Screening ModeDifferentiator

Configured for clinical or professional use cases to assess color distinction capabilities

How much does it cost?

Free
  • Free access to all test features

The app operates on a free-to-use model with no visible in-app purchases or subscription tiers.

Who Built It?

Medical

Enrichment in progress

Publisher profile available very soon

What other apps does Rina Katrina make?

What do users think recently?

Analysis in progress, available soon

What is the competitive landscape for Color Blindness Test Ishihara?

How's The Medical Market?

**Pricing Strategy**: Free-to-use model with no in-app purchases or subscription tiers. **Target Audience**: Individuals seeking personal assessment and professionals requiring screening tools.

How does it evolve in the Medical market?

The app maintains a basic diagnostic presence on iOS with a 3-star rating, but the lack of Android traction (zero ratings) signals a failure to establish a cross-platform footprint.

ChartRankChange
iOSFree#70NEW
iOSFree#95NEW

The rivals identified

The Nemesis

Head to Head

The target app must pivot from being a static testing tool to providing assistive utility to compete with the rival's daily-use feature set.

What sets Color Blindness Test Ishihara apart

  • Focuses on a simplified, singular Ishihara-based testing experience which may appeal to users seeking a quick, no-frills diagnosis.

  • Maintains a more modern update cadence compared to the rival's recent lack of feature releases.

What's Color Blind Pal's Edge

  • Delivers high-utility assistive features like real-time color correction that transform the app from a test into a daily tool.

  • Leverages a massive historical user base to refine its testing accuracy and build significant brand trust.

The outtake for Color Blindness Test Ishihara

Strengths to defend, gaps to attack

Core Strengths

  • Professional screening mode provides specialized clinical utility
  • Free-to-use model removes friction for initial acquisition

Critical Frictions

  • Static testing utility lacks daily-use retention loops
  • No monetization strategy limits development capacity
  • Zero Android rating count indicates poor visibility

Growth Levers

  • Integration of real-time assistive color correction filters
  • B2B partnerships with clinical or educational institutions

Market Threats

  • Established rivals with multi-year engagement records
  • Lack of feature updates invites disruption by active competitors

What are the next best moves?

highPivot

Pivot to assistive utility by shipping real-time color correction because static tests lack retention → increase daily active usage

Competitor analysis shows rivals with real-time filters dominate the category

Trade-off: Deprioritize further Ishihara plate additions — existing set is sufficient for diagnosis.

A counter-intuitive read

The app's lack of monetization is not a strength but a terminal weakness, as it prevents the reinvestment necessary to build the assistive features that define the category.

Feature Gaps vs Competitors

  • Real-time color correction filters (available in Color Blind Pal but absent here)
  • Comprehensive suite of non-Ishihara tests (available in Color Blind Pal but absent here)

Key Takeaways

  • The app is currently a single-use diagnostic tool that fails to capture long-term user value.
  • Development must pivot toward assistive utility to prevent total displacement by rivals offering real-time color correction.

The app functions as a static diagnostic tool, but it lacks the assistive utility required to compete with established rivals, so the PM must prioritize real-time color correction features to prevent total churn.

Where Is It Heading?

Stable

The color vision deficiency market is consolidating around assistive tools that provide daily value beyond simple diagnosis. This app remains exposed to churn because it offers no reason for users to return after the initial test.

The lack of feature updates relative to the nemesis's established utility suggests the app is in maintenance mode, which will lead to gradual user attrition.

Disclosure

Independent intel to help builders create better apps.

AI-powered analysis with editorial review, built from publicly available sources. See methodology.

Marlvel.ai is not affiliated with, endorsed by, or sponsored by Color Blindness Test Ishihara, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Hope this helps & keep building! · Found an error?

What's new in this report

The app's competitive narrative shifted from a critique of ad-monetization to a focus on the lack of assistive utility and long-term retention loops.

shifted

Competitive Landscape Re-anchoring

shifted

Monetization Strategy Assessment

added

Android Visibility Gap

shifted

Strategic Retention Focus

Cite this report

Marlvel.ai. “Color Blindness Test Ishihara Intelligence Report.” Updated May 13, 2026. https://marlvel.ai/intel-report/medical/color-blindness-test-ishihara

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