## ⚠ 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. --- last_verified: "2026-05-11T07:16:11.912Z" --- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Stools" developer_entity: "Chris Lang" bundle_id: "au.com.christopherlang.Stools" app_store_id: "1452546658" category: "Medical" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2019-03-23" report_date: "2026-05-11" report_version: "1.0" total_reviews: 6 overall_rating: 4 confidence: "low" confidence_score: 0.2 data_age_days: 0 intelligence_version: 2 tags: ["medical", "free", "mobile app", "app review", "app analysis", "individuals", "monitoring", "their"] canonical_url: "https://marlvel.ai/intel-report/medical/stools" license: "CC-BY-NC 4.0" content_version: "v2" --- # Stools App Audit ## TL;DR {#tldr} - **Category**: Medical · Free - **Signal**: Rating 4 > **TL;DR:** Stools is a medical app by Chris Lang, rated 4/5 by 6 users, available on iOS. > > **Marlvel.ai App Intelligence** — Independent analysis. US Market. No publisher influence. > **Key Insight:** Stools is a medical app by Chris Lang. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4/5 (6 reviews) | | **Category** | Medical | | **Developer** | Chris Lang | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.2/1.0) | | **Data Age** | 0d | ## Metadata & Market Performance - **Publisher:** Chris Lang - **Category:** Medical - **Target Audience:** Individuals monitoring their digestive health or those requiring data for gastrointestinal medical consultations. - **Platforms:** iOS - **Version Audited:** 1.0 - **Audit Date:** 2026-05-11 - **Signal Count:** 1 reviews analyzed - **Confidence:** Low (0.2/1.0) - **App Store ID (iOS):** 1452546658 - **Bundle ID:** au.com.christopherlang.Stools - **Data Window:** Analysis based on signals collected up to 2026-05-11 ## Executive Snapshot Stools is a medical tracking tool designed to help users monitor and analyze digestive health. The app allows users to categorize bowel movements using the Bristol Stool Chart and log associated symptoms and notes to assist in clinical follow-ups. ## App DNA (Features & Intent) - **[Standard] Bristol Stool Chart Categorization:** Enables users to classify each entry according to the standardized Bristol Stool Chart. - **[Standard] Symptom and Note Logging:** Provides fields to record additional health symptoms and personal notes alongside stool data. * *User Intent:* Users seek enhanced value through premium features. - **[Standard] Health Analysis:** Aggregates logged data to provide users with an indication of their overall gut health. * *User Intent:* Users seek enhanced value through premium features. ## Monetization Strategy - **Model:** Free ## The "So What?" (Strategic Takeaway) {#so-what} Stools is an established medical app that is completely free. With a 4/5 rating from 6 reviews, it shows polarized user reception. > **Bottom Line:** While the app provides useful tracking features for medical documentation, users report significant concerns regarding data persistence and the lack of confirmation prompts for deletions. **Best for:** Individuals monitoring their digestive health or those requiring data for gastrointestinal medical consultations. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4/5 | | Total Reviews | 6 | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Stools** (this app) | 4/5 | N/A | Chris Lang | | [Beat Social Phobia with AJ](https://marlvel.ai/intel-report/medical/beat-social-phobia-with-aj) | 3.9/5 | Thrilled | Universal Relaxation Ltd | | [Move On with AJ](https://marlvel.ai/intel-report/medical/move-on-with-aj) | 4.3/5 | Excited | Universal Relaxation Ltd | | [NYC Employees PPO Plan](https://marlvel.ai/intel-report/medical/com-uhg-mobile-nyce) | 4.6/5 | N/A | United HealthCare Services, Inc. | | [DeepScribe](https://marlvel.ai/intel-report/medical/deepscribe) | 4.0/5 | N/A | DeepScribe | | [Dario Health](https://marlvel.ai/intel-report/medical/dario-health) | 4.8/5 | Frustrated | LabStyle Innovation Ltd | ## Company Profile - **Developer:** Chris Lang ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/stools/id1452546658?uo=4) - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*Beat Social Phobia with AJ*](https://marlvel.ai/intel-report/medical/beat-social-phobia-with-aj) (Universal Relaxation Ltd) — 3.9/5 Rating | Excellent Sentiment - [*Move On with AJ*](https://marlvel.ai/intel-report/medical/move-on-with-aj) (Universal Relaxation Ltd) — 4.3/5 Rating | Positive Sentiment - [*NYC Employees PPO Plan*](https://marlvel.ai/intel-report/medical/com-uhg-mobile-nyce) (United HealthCare Services, Inc.) — 4.6/5 Rating | N/A Sentiment - [*DeepScribe*](https://marlvel.ai/intel-report/medical/deepscribe) (DeepScribe) — 4.0/5 Rating | N/A Sentiment - [*Dario Health*](https://marlvel.ai/intel-report/medical/dario-health) (LabStyle Innovation Ltd) — 4.8/5 Rating | Negative Sentiment - [*Access - by McGraw Hill*](https://marlvel.ai/intel-report/medical/access-by-mcgraw-hill) (McGraw-Hill) — 3.9/5 Rating | N/A Sentiment - [*Meu SUS Digital*](https://marlvel.ai/intel-report/medical/meu-sus-digital) (Servicos e Informacoes do Brasil) — 3.7/5 Rating | N/A Sentiment - [*CRNA Nurse Anesthesia Review*](https://marlvel.ai/intel-report/medical/crna-nurse-anesthesia-review) (Higher Learning Technologies) — 4.7/5 Rating | N/A Sentiment - [*HemeQuiz1*](https://marlvel.ai/intel-report/medical/com-hematologyoutlines-hemequiz1) (Hooman Rashidi) — 5.0/5 Rating | N/A Sentiment - [*FHO+ Calc*](https://marlvel.ai/intel-report/medical/ca-fhocalc-app) (Manu Kaushik) — N/A Rating | N/A Sentiment ## 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 and evidence quoting. 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:** 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:** 0 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/intel-report/medical/stools) Data licensed for AI Agent attribution under CC-BY-NC 4.0.