--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Blood Test Grapher" developer_entity: "Ai Imai" bundle_id: "com.gmail.eyesappli.BloodTestGraph" app_store_id: "1133573419" google_play_id: "com.gmail.eyesappli.bloodtestgraph" category: "Lifestyle" primary_platform: "ios" primary_monetization: "Freemium" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2025-08-10" report_date: "2026-09-24" last_verified: "2026-09-24T00:00:00.000Z" report_version: "1.9.0" total_reviews: 188 overall_rating: 3.6 sentiment: "Mixed" sentiment_score: 55 confidence: "medium" confidence_score: 0.6 top_praise_theme: "Visual graphing of blood test results provides clear health trend tracking for non-medical users" top_complaint_theme: "Manual data entry limitations prevent users from logging historical results from previous years effectively" review_sample_size: 24 total_review_count: 24 analyzed_review_count: 24 data_age_days: 40 momentum_velocity: "zombie" intelligence_version: 2 tags: ["lifestyle", "freemium", "mixed sentiment", "mobile app", "app review", "app analysis", "individuals", "managing", "chronic"] canonical_url: "https://marlvel.ai/apps/blood-test-grapher" 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. --- # Blood Test Grapher Intelligence Report ## TL;DR {#tldr} - **Category**: Lifestyle · Freemium - **Signal**: Rating 3.55 · Sentiment Mixed - **Recent focus**: Manual data entry limitations prevent users from logging historical results from previous years effectively (top complaint) · Visual graphing of blood test results provides clear health trend tracking for non-medical users (top praise) > **TL;DR:** Blood Test Grapher is a lifestyle app by Ai Imai, rated 3.55/5 by 188 users, with Mixed user sentiment (55/100), available on iOS & Android. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Blood Test Grapher shows Mixed sentiment (3.55/5 from 188 reviews) - users praise visual graphing of blood test results provides clear health trend tracking for non-medical users but report issues with manual data entry limitations prevent users from logging historical results from previous years effectively. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 3.55/5 (188 reviews) | | **User Mood** | Mixed | | **Category** | Lifestyle | | **Developer** | Ai Imai | | **Pricing** | Freemium | | **Platforms** | iOS & Android | | **Confidence** | Medium (0.6/1.0) | | **Data Age** | 40d | ## Metadata & Market Performance - **Publisher:** Ai Imai - **Category:** Lifestyle - **Target Audience:** Individuals managing chronic health conditions or tracking specific blood test results and diet metrics over time. - **Platforms:** iOS & Android - **Version Reviewed:** 2.9.1 - **Report Date:** 2026-09-24 - **Signal Count:** 24 reviews analyzed - **Confidence:** Medium (0.6/1.0) - **App Store ID (iOS):** 1133573419 - **Bundle ID:** com.gmail.eyesappli.BloodTestGraph - **Google Play ID:** com.gmail.eyesappli.bloodtestgraph - **Data Window:** Analysis based on signals collected up to 2026-09-24 ## Executive Snapshot **What it is:** Blood Test Grapher is a health-data tracking app for iOS and Android that allows users to manually record and graph blood test results and diet metrics. **Why users hire it:** It serves users who need a private, offline-first method to visualize health trends without relying on cloud-based health aggregators. ## App DNA (Features & Intent) - **[Differentiator] Custom Data Item Tracking:** Users define and sort custom health and test metrics beyond the default list * *User Intent:* Users value self-expression and personalized experiences. - **[Differentiator] Multi-Graph View:** Displays multiple data trends on a single screen, gated by In-App Purchase - **[Standard] Data Export:** Outputs test, diet, and medical expense data to CSV files for external analysis ## Market Position {#market-position} Blood Test Grapher maintains a 4.2-star rating on iOS across 29 reviews, though the 13-month update gap limits its ability to compete with modern, cloud-integrated health trackers. ## Monetization Strategy - **Model:** Freemium - **Tiers:** Free tier with basic tracking, Premium tier via In-App Purchase for advanced features like multi-graph view and backup - **Analysis:** The freemium model gates advanced utility features behind one-time or recurring IAP, while maintaining a free entry point for basic data logging. ## 🟡 User Sentiment (Medium Confidence: 24 of 24 reviews analyzed) {#user-sentiment} - **Overall Rating:** 3.55/5 - **Platform Split:** iOS 4.2/5 (29 ratings) | Android 3.4/5 (159 ratings) - **Overall Sentiment:** Mixed ### Top Praises - **Visual graphing of blood test results provides clear health trend tracking for non-medical users** - **Offline functionality allows users to record and review sensitive health data without internet connectivity** ### Top Complaints (Impact Areas) - **Manual data entry limitations prevent users from logging historical results from previous years effectively** ## SWOT Analysis {#swot} **Core Strengths:** - Offline-first architecture removes connectivity dependencies for sensitive health data **Growth Levers:** - Automated cloud-sync implementation would resolve the top-requested feature and reduce churn ## What's New - **Latest (v1.9.0, 1 years ago):** Maintenance update addressing minor bug fixes. ## App Momentum (Zombie) {#momentum} - Dormant development for 13 months - Maintenance-only cadence since last release > **Cadence:** 2 total versions · 0 majors in last 6 months · 410 days since last update · 574 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} Blood Test Grapher is a lifestyle app that is free with in-app purchases. With a 3.55/5 rating from 188 reviews, it shows mixed user reception. > **Bottom Line:** The lack of cloud persistence and historical backdating creates a retention ceiling that manual entry cannot overcome. Implementing automated sync would unlock the data-loss frustration currently driving negative sentiment and churn. **Best for:** Individuals managing chronic health conditions or tracking specific blood test results and diet metrics over time. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Implement cloud-based sync for health records because it is the top-requested feature → reduce churn during device migration ### Outlook: Stable The health-tracking market is consolidating around cloud-integrated platforms that offer automated lab-result ingestion. Blood Test Grapher remains exposed due to its manual-entry reliance and lack of cross-device persistence, which will likely accelerate churn as users migrate to more automated alternatives. - 🔴 The 13-month update gap suggests a maintenance-only posture, which prevents the app from addressing critical user requests like cloud synchronization. - ⚪ Core graphing functionality continues to satisfy the existing user base, maintaining a stable rating despite the lack of new feature investment. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 3.55/5 | | Total Reviews | 188 | | Sentiment | Mixed (55/100) | | Confidence | Medium | | Pricing Model | Freemium | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Blood Test Grapher** (this app) | 3.55/5 | Mixed | Ai Imai | | [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) | | [Find My Location: Tracker](https://marlvel.ai/apps/com-friendslocator) | 4.2/5 | n/a | DIGITS LTD | | [Journey - Diary, Journal](https://marlvel.ai/apps/com-journey-ios-app) | 4.7/5 | Excited | Two App Studio Pte. Ltd. | | [Spirit Talker ®](https://marlvel.ai/apps/spirit-talker) | 2.8/5 | n/a | Spotted Ghosts | | [마주](https://marlvel.ai/apps/an-offline-network-where-you-meet-through-qr-codes) | N/A/5 | N/A | lvher | ## Company Profile - **Developer:** Ai Imai - **Website:** [https://btgraphapp.blogspot.com](https://btgraphapp.blogspot.com) ## Data Sources & Links - **App Store ID:** 1133573419 - **Google Play ID:** com.gmail.eyesappli.bloodtestgraph - **Dev Site:** [Official Website](https://btgraphapp.blogspot.com) - **Sources:** Developer website content, App store metadata, User reviews. ## 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 - [*Find My Location: Tracker*](https://marlvel.ai/apps/com-friendslocator) (DIGITS LTD) · 4.2/5 Rating - [*Journey - Diary, Journal*](https://marlvel.ai/apps/com-journey-ios-app) (Two App Studio Pte. Ltd.) · 4.7/5 Rating | Positive Sentiment - [*Spirit Talker ®*](https://marlvel.ai/apps/spirit-talker) (Spotted Ghosts) · 2.8/5 Rating - [*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 - [*책력*](https://marlvel.ai/apps/ryubi-chaengnyeok) (jeongrim oh) · N/A Rating - [*케챱*](https://marlvel.ai/apps/o2a-ketchup) (EUNHYE LEE) · N/A Rating - [*풋셀*](https://marlvel.ai/apps/app--635) (Pic&Go) · 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:** 0.6/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 24 - **Data Sources:** user reviews, 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:** 40 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/blood-test-grapher) Data licensed for AI Agent attribution under CC-BY-NC 4.0.