--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "The Fast Metabolism Diet" developer_entity: "Brainstorming Session Inc." bundle_id: "com.rhad.fastmetabolismdiet" app_store_id: "626362411" category: "Health & Fitness" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2022-02-24" report_date: "2026-09-19" last_verified: "2026-09-19T00:00:00.000Z" report_version: "2.21.11" total_reviews: 188 overall_rating: 3.4 sentiment: "Frustrated" sentiment_score: 35 confidence: "medium" confidence_score: 0.45 top_praise_theme: "The structured meal planning and grocery list generation provide significant utility for users following the diet" top_complaint_theme: "Rigid time-tracking constraints prevent users with non-traditional schedules from accurately logging their daily meal intake" review_sample_size: 49 total_review_count: 49 analyzed_review_count: 49 data_age_days: 12 momentum_velocity: "zombie" intelligence_version: 2 tags: ["health & fitness", "free", "frustrated sentiment", "mobile app", "app review", "app analysis", "individuals", "following", "metabolism"] canonical_url: "https://marlvel.ai/apps/the-fast-metabolism-diet" 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. --- # The Fast Metabolism Diet Intelligence Report ## TL;DR {#tldr} - **Category**: Health & Fitness · Free - **Signal**: Rating 3.35 · Sentiment Frustrated - **Recent focus**: Rigid time-tracking constraints prevent users with non-traditional schedules from accurately logging their daily meal intake (top complaint) · The structured meal planning and grocery list generation provide significant utility for users following the diet (top praise) > **TL;DR:** The Fast Metabolism Diet is a health & fitness app by Brainstorming Session Inc., rated 3.35/5 by 188 users, with Frustrated user sentiment (35/100), available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** The Fast Metabolism Diet faces Frustrated user sentiment (3.35/5 from 188 reviews), with users reporting rigid time-tracking constraints prevent users with non-traditional schedules from accurately logging their daily meal intake as the primary concern. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 3.35/5 (188 reviews) | | **User Mood** | Frustrated | | **Category** | Health & Fitness | | **Developer** | Brainstorming Session Inc. | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Medium (0.45/1.0) | | **Data Age** | 12d | ## Metadata & Market Performance - **Publisher:** Brainstorming Session Inc. - **Category:** Health & Fitness - **Target Audience:** Individuals following the Fast Metabolism Diet who require a digital tool to manage meal planning and ingredient compliance. - **Platforms:** iOS - **Version Reviewed:** 2.21.11 - **Report Date:** 2026-09-19 - **Signal Count:** 49 reviews analyzed - **Confidence:** Medium (0.45/1.0) - **App Store ID (iOS):** 626362411 - **Bundle ID:** com.rhad.fastmetabolismdiet - **Data Window:** Analysis based on signals collected up to 2026-09-19 ## Executive Snapshot **What it is:** The Fast Metabolism Diet is a meal-planning companion app for the 28-day Fast Metabolism Diet program on iOS. **Why users hire it:** It removes the cognitive friction of verifying food eligibility across three distinct diet phases, which is the primary barrier for users following the book's methodology. ## App DNA (Features & Intent) - **[Differentiator] Phase-Specific Food Lists:** Categorized ingredient lists mapped to the three-phase diet plan, allowing users to verify food eligibility by phase. - **[Standard] Customizable Menu Planning:** Meal planning tool that allows users to tailor meals and schedules to personal restrictions and lifestyle. * *User Intent:* Users value self-expression and personalized experiences. - **[Standard] My Day Tracker:** Dashboard view displaying upcoming meals and scheduled activities for the current day. * *User Intent:* Users want visibility into their own performance and progress. ## Market Position {#market-position} The Fast Metabolism Diet holds a 3.35-star rating across 188 total ratings, reflecting a mixed user reception. The lack of updates since 2022 signals that the app is no longer actively competing for market share in the crowded health and fitness category. ## Monetization Strategy - **Model:** Free - **Tiers:** Free app with no stated subscription or IAP in metadata - **Analysis:** The app functions as a free companion tool to the physical book series, prioritizing brand authority and user retention over direct monetization. ## 🔴 User Sentiment (Medium Confidence: 49 of 49 reviews analyzed) {#user-sentiment} - **Overall Rating:** 3.35/5 - **Platform Split:** iOS 3.4/5 (188 ratings) - **Overall Sentiment:** Frustrated ### Top Praises - **The structured meal planning and grocery list generation provide significant utility for users following the diet** - **Long-term users report successful weight loss and improved energy levels when adhering strictly to the program** ### Top Complaints (Impact Areas) - **Rigid time-tracking constraints prevent users with non-traditional schedules from accurately logging their daily meal intake** ## SWOT Analysis {#swot} **Core Strengths:** - Phase-specific food lists create high switching costs for book-methodology users **Growth Levers:** - Integration with health-tracking platforms would automate weight and nutrition data syncing ## What's New - **Latest (v2.21.11, 4 years ago):** Applied general UI updates. ## App Momentum (Zombie) {#momentum} - No updates in 45 months. - Maintenance-only state since early 2022. > **Cadence:** 1 total versions · 0 majors in last 6 months · 1667 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} The Fast Metabolism Diet is a health & fitness app that is completely free. With a 3.35/5 rating from 188 reviews, it faces significant user friction. > **Bottom Line:** The Fast Metabolism Diet relies on the brand authority of its book methodology to retain users, but technical instability and rigid scheduling logic are eroding its utility. Addressing these core usability frictions is required to prevent further churn to modern, more flexible health-tracking alternatives. **Best for:** Individuals following the Fast Metabolism Diet who require a digital tool to manage meal planning and ingredient compliance. ### PM Action Plan (Next Best Moves) - [ ] [MAINTAIN] Audit UI navigation bugs because they are the top-cited technical frustration → improve session retention ### Outlook: Declining The health and fitness market is consolidating around apps that offer flexible, automated tracking and cross-platform integration. The Fast Metabolism Diet remains exposed due to its rigid, dated logic and lack of active development, which will continue to drive users toward more responsive competitors. - 🔴 The 45-month update gap signals a maintenance-only state, which prevents the app from addressing evolving user needs in the health-tracking market. - 🔴 Persistent navigation bugs and time-tracking rigidity erode the daily active habit, which compounds the rating drag already visible on the platform. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 3.35/5 | | Total Reviews | 188 | | Sentiment | Frustrated (35/100) | | Confidence | Medium | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **The Fast Metabolism Diet** (this app) | 3.35/5 | Frustrated | Brainstorming Session Inc. | | [Mind - Méditations guidées](https://marlvel.ai/apps/mind-m-ditations-guid-es) | 4.6/5 | Excited | MIND AND CIE | | [evolum - Meditation & Yoga](https://marlvel.ai/apps/evolum-meditation-yoga) | 4.7/5 | Excited | Evolum | | [GoTall - Height Predictor](https://marlvel.ai/apps/gotall-height-predictor) | 4.6/5 | Mixed | Grow Labs LLC | | [SpeechPacer](https://marlvel.ai/apps/speechpacer) | 1.0/5 | N/A | Felix Thron | | [Taller AI: Height Maximizer](https://marlvel.ai/apps/taller-ai-height-maximizer) | 4.7/5 | Excited | Leadimize | ## Company Profile - **Developer:** Brainstorming Session Inc. ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/the-fast-metabolism-diet/id626362411?uo=4) - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*Mind - Méditations guidées*](https://marlvel.ai/apps/mind-m-ditations-guid-es) (MIND AND CIE) · 4.6/5 Rating | Positive Sentiment - [*evolum - Meditation & Yoga*](https://marlvel.ai/apps/evolum-meditation-yoga) (Evolum) · 4.7/5 Rating | Positive Sentiment - [*GoTall - Height Predictor*](https://marlvel.ai/apps/gotall-height-predictor) (Grow Labs LLC) · 4.6/5 Rating - [*SpeechPacer*](https://marlvel.ai/apps/speechpacer) (Felix Thron) · 1.0/5 Rating - [*Taller AI: Height Maximizer*](https://marlvel.ai/apps/taller-ai-height-maximizer) (Leadimize) · 4.7/5 Rating | Positive Sentiment - [*나만의 짐, 나만의 운동공간이 필요할 때*](https://marlvel.ai/apps/this-is-a-web-service-that-allows-you-to-reserve-a) (lvher) · N/A Rating - [*하이타이 - 최저가 마사지, 스웨디시, 타이마사지 할인*](https://marlvel.ai/apps/kr-co-apptube-hitai2) (앱튜브(AppTube)) · 4.7/5 Rating - [*しりもちアプリ*](https://marlvel.ai/apps/scade-shirimochi) (株式会社S-CADE) · N/A Rating - [*ねむねむボタン*](https://marlvel.ai/apps/hiroto-neoti-neoti) (HIROTO TSUTSUSHIMA) · N/A Rating - [*ストレス・チェック*](https://marlvel.ai/apps/app--661) (Satoshi Sato) · 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:** 0.45/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 49 - **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:** 12 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/the-fast-metabolism-diet) Data licensed for AI Agent attribution under CC-BY-NC 4.0.