--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Biorhythm 365days" developer_entity: "akira ohmachi" bundle_id: "jp.aosystem.biorhythm" app_store_id: "1562706194" category: "Utilities" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-08-29" report_date: "2026-09-11" last_verified: "2026-09-11T00:00:00.000Z" report_version: "2.9.0" total_reviews: 0 sentiment: "Mixed" sentiment_score: 50 confidence: "medium" confidence_score: 0.55 top_praise_theme: "The simplicity of the interface provides a clear and focused experience for long-term users" top_complaint_theme: "The chart display is too small to read comfortably on standard mobile device screens" review_sample_size: 4 total_review_count: 4 analyzed_review_count: 4 data_age_days: 19 momentum_velocity: "maintenance" intelligence_version: 2 tags: ["utilities", "free", "mixed sentiment", "mobile app", "app review", "app analysis", "individuals", "interested", "lifestyle"] canonical_url: "https://marlvel.ai/apps/biorhythm-365days" license: "CC-BY-NC 4.0" content_version: "v2" --- # Biorhythm 365days Intelligence Report ## TL;DR {#tldr} - **Category**: Utilities · Free - **Signal**: Sentiment Mixed - **Recent focus**: The chart display is too small to read comfortably on standard mobile device screens (top complaint) · The simplicity of the interface provides a clear and focused experience for long-term users (top praise) > **TL;DR:** Biorhythm 365days is a utilities app by akira ohmachi, with Mixed user sentiment (50/100), available on iOS & Android. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Biorhythm 365days is a utilities app by akira ohmachi. ## Quick Facts | Fact | Value | | :--- | :--- | | **User Mood** | Mixed | | **Category** | Utilities | | **Developer** | akira ohmachi | | **Pricing** | Free | | **Platforms** | iOS & Android | | **Confidence** | Medium (0.55/1.0) | | **Data Age** | 19d | ## Metadata & Market Performance - **Publisher:** akira ohmachi - **Category:** Utilities - **Target Audience:** Individuals interested in lifestyle tracking and pseudoscience-based self-reflection tools. - **Platforms:** iOS & Android - **Version Reviewed:** 2.8.0 - **Report Date:** 2026-09-11 - **Signal Count:** 4 reviews analyzed - **Confidence:** Medium (0.55/1.0) - **App Store ID (iOS):** 1562706194 - **Bundle ID:** jp.aosystem.biorhythm - **Google Play ID:** jp.aosystem.biorhythm - **Data Window:** Analysis based on signals collected up to 2026-09-11 ## Executive Snapshot **What it is:** Biorhythm 365days is a lifestyle utility app that calculates and visualizes physical, emotional, and intellectual cycles for individuals and their contacts. **Why users hire it:** It serves users seeking a structured, pseudoscience-based framework for daily self-reflection, replacing manual calendar tracking with automated wave-chart projections. ## App DNA (Features & Intent) - **[Standard] Biorhythm Cycle Tracking:** Calculates physical, emotional, and intellectual cycles based on birthdate input. * *User Intent:* Users want visibility into their own performance and progress. - **[Differentiator] Multi-Profile Management:** Tracks cycles for up to 6 profiles, increasing session frequency. * *User Intent:* Users seek enhanced value through premium features. - **[Standard] Critical Day Alerts:** Retention hook identifying transition phases to encourage daily check-ins. * *User Intent:* Users are motivated by consistent progression and daily incentives. ## Market Position {#market-position} Biorhythm 365days maintains a maintenance-mode presence in the Utilities category with no active subscription revenue. The lack of recent feature expansion relative to the 60-day update cadence signals a focus on ad-inventory maintenance rather than user-base growth. ## Monetization Strategy - **Model:** Free - **Tiers:** Free with ads - **Analysis:** Ad-supported free model with no explicit paid subscription tiers identified in store data. ## 🟡 User Sentiment (Medium Confidence: 4 of 4 reviews analyzed) {#user-sentiment} - **Overall Sentiment:** Mixed ### Top Praises - **The simplicity of the interface provides a clear and focused experience for long-term users** ### Top Complaints (Impact Areas) - **The chart display is too small to read comfortably on standard mobile device screens** ## SWOT Analysis {#swot} **Core Strengths:** - Multi-profile management expands ad-impression inventory per active user **Growth Levers:** - Localized UI scaling could capture users frustrated by the current display constraints ## What's New - **Latest (v2.9.0, 1 weeks ago):** General stability and performance optimizations. - **Last Major (v2.8.0, 2 months ago):** Introduced adjustable horizontal scrolling speed for charts. ## App Momentum (Maintenance) {#momentum} - Ships stability updates every 60 days. - Integrated horizontal chart scrolling speed. > **Cadence:** 2 total versions · 1 majors in last 6 months · 12 days since last update · 56 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} Biorhythm 365days is an utilities app that is completely free. > **Bottom Line:** Biorhythm 365days relies on a stable but stagnant utility loop that fails to address core mobile usability constraints. Pivoting to a responsive chart interface would unlock the retention potential currently suppressed by the small display size. **Best for:** Individuals interested in lifestyle tracking and pseudoscience-based self-reflection tools. ### PM Action Plan (Next Best Moves) - [ ] [PIVOT] Implement dynamic chart scaling because user complaints cite small display size as a primary usability barrier → increase session duration ### Outlook: Mixed The lifestyle tracking market is consolidating around apps that offer high-fidelity visual experiences, leaving Biorhythm 365days exposed due to its static, small-scale chart design. Unless the developer addresses the mobile-readability barrier, the app will continue to struggle with user churn despite its simple utility loop. - 🔴 The persistent chart-size complaint indicates that the current design is impractical for mobile, which limits the potential for long-term user retention. - ⚪ The maintenance-only release cadence suggests that the developer is prioritizing stability over feature expansion, which limits the app's ability to compete for new users. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Total Reviews | 0 | | Sentiment | Mixed (50/100) | | Confidence | Medium | | Pricing Model | Free | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Outlook | Mixed | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Biorhythm 365days** (this app) | N/A/5 | Mixed | akira ohmachi | | [Sota Connect: Secure Network](https://marlvel.ai/apps/fi-catconnect-sota) | 4.8/5 | N/A | Cat Connect | | [V2Box - V2ray Client](https://marlvel.ai/apps/v2box-v2ray-client) | 4.6/5 | n/a | techlaim | | [avoVPN Desktop](https://marlvel.ai/apps/avovpn-desktop) | N/A/5 | N/A | Avocado VPN Technologies | | [Free VPN by Free VPN .org™](https://marlvel.ai/apps/free-vpn-by-free-vpn-org) | 4.5/5 | Mixed | Free VPN LLC | | [Fusvob VPN : Super VPN 2026](https://marlvel.ai/apps/com-toplinkc-foxexcellent) | 4.4/5 | Mixed | Fuxin Technology | ## Company Profile - **Developer:** akira ohmachi - **Website:** [https://www.aosystem.co.jp/](https://www.aosystem.co.jp/) - **Social:** [YouTube](https://www.youtube.com/@TryThisAppNow) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/biorhythm-365days/id1562706194?uo=4) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=jp.aosystem.biorhythm&hl=en&gl=us) - **Dev Site:** [Official Website](https://www.aosystem.co.jp/) - **Sources:** Developer website content, About us / company information, App store metadata, User reviews. ## Related Intel Reports - [*Sota Connect: Secure Network*](https://marlvel.ai/apps/fi-catconnect-sota) (Cat Connect) · 4.8/5 Rating - [*V2Box - V2ray Client*](https://marlvel.ai/apps/v2box-v2ray-client) (techlaim) · 4.6/5 Rating - [*avoVPN Desktop*](https://marlvel.ai/apps/avovpn-desktop) (Avocado VPN Technologies) · N/A Rating - [*Free VPN by Free VPN .org™*](https://marlvel.ai/apps/free-vpn-by-free-vpn-org) (Free VPN LLC) · 4.5/5 Rating - [*Fusvob VPN : Super VPN 2026*](https://marlvel.ai/apps/com-toplinkc-foxexcellent) (Fuxin Technology) · 4.4/5 Rating - [*Potatso*](https://marlvel.ai/apps/potatso) (Potatso Lab LTD) · 4.4/5 Rating - [*Quantumult X*](https://marlvel.ai/apps/quantumult-x) (Cross Utility Ltd) · 3.8/5 Rating - [*VPN 365-Master WIFI Security*](https://marlvel.ai/apps/vpn-365-master-wifi-security) (vpn fast) · 4.6/5 Rating - [*카톡 분석 - 오픈채팅, 카톡 채팅 분석, 통계, 검색*](https://marlvel.ai/apps/com-liger-katalkanalysispaid) (Park Sung Cheol) · N/A Rating - [*로또 황금번호 생성기*](https://marlvel.ai/apps/lotto-lottogold) (jaehwan lee) · N/A Rating ## Frequently Asked Questions {#faq} ### Is Biorhythm 365days suitable for beginners? Yes, the app is designed for simplicity and provides a straightforward interface for tracking physical, emotional, and intellectual cycles based on birthdates. ### Does Biorhythm 365days have a paid subscription? No, Biorhythm 365days operates on a free, ad-supported model with no paid subscription tiers available. ### Are there any limitations to the chart display? Users report that the chart display is quite small, which can make it difficult to read data comfortably on standard mobile screens. ## 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:** 0.55/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 4 - **Data Sources:** user reviews, developer website, company about page, 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:** 19 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/biorhythm-365days) Data licensed for AI Agent attribution under CC-BY-NC 4.0.