--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Biorhythm Calc" developer_entity: "Kornel Kaulics" bundle_id: "eu.highball.biorhythm" app_store_id: "6748093533" category: "Entertainment" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-08-24" report_date: "2026-09-11" last_verified: "2026-09-11T00:00:00.000Z" report_version: "1.0.2" total_reviews: 0 confidence: "low" confidence_score: 0 data_age_days: 19 momentum_velocity: "maintenance" intelligence_version: 2 tags: ["entertainment", "free", "mobile app", "app review", "app analysis", "individuals", "interested", "tracking"] canonical_url: "https://marlvel.ai/apps/biorhythm-calc" license: "CC-BY-NC 4.0" content_version: "v2" --- # Biorhythm Calc Intelligence Report ## TL;DR {#tldr} - **Category**: Entertainment · Free > **TL;DR:** Biorhythm Calc is a entertainment app by Kornel Kaulics, available on iOS & Android. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Biorhythm Calc is a entertainment app by Kornel Kaulics. ## Quick Facts | Fact | Value | | :--- | :--- | | **Category** | Entertainment | | **Developer** | Kornel Kaulics | | **Pricing** | Free | | **Platforms** | iOS & Android | | **Confidence** | Low (0/1.0) | | **Data Age** | 19d | ## Metadata & Market Performance - **Publisher:** Kornel Kaulics - **Category:** Entertainment - **Target Audience:** Individuals interested in tracking personal energy, mood, and mental clarity cycles. - **Platforms:** iOS & Android - **Version Reviewed:** 1.1 - **Report Date:** 2026-09-11 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0/1.0) - **App Store ID (iOS):** 6748093533 - **Bundle ID:** eu.highball.biorhythm - **Google Play ID:** eu.highball.biorhythm - **Data Window:** Analysis based on signals collected up to 2026-09-11 ## Executive Snapshot **What it is:** Biorhythm Calc is a cycle-tracking utility for iOS and Android that calculates physical, emotional, and intellectual patterns based on user birth dates. **Why users hire it:** It removes the friction of manual re-entry for users who check their energy cycles daily, serving as a simple, local-first alternative to complex health platforms. ## App DNA (Features & Intent) - **[Standard] Biorhythm Calculation:** Calculates physical, emotional, and intellectual cycles based on user birth date - **[Basic] Automatic Birthday Saving:** Persists user birth date locally to eliminate manual re-entry on subsequent launches ## Market Position {#market-position} Biorhythm Calc currently holds no significant chart presence or rating volume, reflecting its status as a legacy utility without active marketing or user-acquisition efforts. ## Monetization Strategy - **Model:** Free - **Tiers:** Free - **Analysis:** The app is currently free with no observable in-app purchases or ad-supported tiers. ## SWOT Analysis {#swot} **Core Strengths:** - Local birthday persistence eliminates manual re-entry friction **Growth Levers:** - Integration of social cycle-sharing could differentiate the app from static calculators ## What's New - **Latest (v1.1, 1 years ago):** Implemented automatic birthday saving upon user selection. ## App Momentum (Maintenance) {#momentum} - Ships bug fixes only. - Last major release July 2025. > **Cadence:** 2 total versions · 1 majors in last 6 months · 17 days since last update · 405 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} Biorhythm Calc is an entertainment app that is completely free. > **Bottom Line:** Biorhythm Calc's reliance on static, local-only calculations without a social or data-sync layer limits its utility to a niche, low-retention audience, necessitating a pivot to social features to unlock sustainable growth. **Best for:** Individuals interested in tracking personal energy, mood, and mental clarity cycles. ### PM Action Plan (Next Best Moves) - [ ] [PIVOT] Pivot to a social-sharing model because the current static calculator lacks a retention loop → increase daily active usage ### Outlook: Declining The cycle-tracking market is consolidating around apps that offer social features and wearable integration, leaving static tools like Biorhythm Calc increasingly isolated. Without a shift toward active engagement loops, the app will continue to lose relevance as users migrate to platforms that provide more than basic calculations. - 🔴 The maintenance-only release cadence indicates a lack of active development, which erodes the app's competitive position against modern, feature-rich cycle trackers. - ⚪ The absence of user ratings suggests a lack of visibility, which limits the app's ability to attract new users through organic store discovery. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Total Reviews | 0 | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS & Android | | Key Features | 2 analyzed | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Biorhythm Calc** (this app) | N/A/5 | N/A | Kornel Kaulics | | [BESTPLAY Play to earn & donate](https://marlvel.ai/apps/bestplay-play-to-earn-donate) | 4.6/5 | n/a | Bestplay | | [JustPlay: Earn Money or Donate](https://marlvel.ai/apps/justplay-earn-money-or-donate) | 4.4/5 | n/a | JustPlay GmbH | | [BIBLIOTECA LDM](https://marlvel.ai/apps/biblioteca-ldm) | 4.8/5 | Mixed | Esteban Gonzalez | | [DramaBox - Stream Drama Shorts](https://marlvel.ai/apps/dramabox-stream-drama-shorts-1) | 4.7/5 | n/a | STORYMATRIX | | [DramaWave - Dramas & Reels](https://marlvel.ai/apps/dramawave-dramas-reels) | 4.7/5 | Mixed | SKYWORK AI PTE LTD | ## Company Profile - **Developer:** Kornel Kaulics ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/biorhythm-calc/id6748093533?uo=4) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=eu.highball.biorhythm&hl=en&gl=us) - **Sources:** App store metadata. ## Related Intel Reports - [*BESTPLAY Play to earn & donate*](https://marlvel.ai/apps/bestplay-play-to-earn-donate) (Bestplay) · 4.6/5 Rating - [*JustPlay: Earn Money or Donate*](https://marlvel.ai/apps/justplay-earn-money-or-donate) (JustPlay GmbH) · 4.4/5 Rating - [*BIBLIOTECA LDM*](https://marlvel.ai/apps/biblioteca-ldm) (Esteban Gonzalez) · 4.8/5 Rating - [*DramaBox - Stream Drama Shorts*](https://marlvel.ai/apps/dramabox-stream-drama-shorts-1) (STORYMATRIX) · 4.7/5 Rating - [*DramaWave - Dramas & Reels*](https://marlvel.ai/apps/dramawave-dramas-reels) (SKYWORK AI PTE LTD) · 4.7/5 Rating - [*Ghost Science M3*](https://marlvel.ai/apps/ghost-science-m3) (Michael Weber) · 3.1/5 Rating | Positive Sentiment - [*JustPlay: Earn Loyalty Rewards*](https://marlvel.ai/apps/justplay-earn-loyalty-rewards) (Gimica GmbH) · 4.7/5 Rating - [*Leprecam*](https://marlvel.ai/apps/leprecam) (Asinine Games Inc) · 4.3/5 Rating - [*PLAYZONE - Play & Earn Rewards*](https://marlvel.ai/apps/money-well-earn-rewards) (Vanessa Calatayud Gomis) · 2.5/5 Rating - [*TikTok Pro - Events*](https://marlvel.ai/apps/com-ss-iphone-ugc-tiktok-pro) (TikTok Ltd.) · 4.7/5 Rating ## Frequently Asked Questions {#faq} ### Is Biorhythm Calc free to use? Yes, Biorhythm Calc is currently free with no in-app purchases or advertisements. ### Does Biorhythm Calc require an internet connection? The app stores birth dates locally, which suggests it can function offline for basic calculations, though it lacks cloud-sync features. ### What alternatives exist for cycle tracking? Users seeking more advanced features should consider health platforms that integrate wearable data and social sharing, as Biorhythm Calc is a static, local-only tool. ## 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:** 0/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 0 - **Data Sources:** 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-calc) Data licensed for AI Agent attribution under CC-BY-NC 4.0.