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Biorhythm Tracker

Biorhythm Tracker

By Masahiro Sakai

Biorhythm Tracker is a health-focused utility for iOS and Android that visualizes physical, emotional, and intellectual cycles alongside user-reported mood logs.

The App DNA

What makes this app unique?

The application removes the friction of manual cycle calculation, allowing users to identify patterns between their biological rhythms and daily emotional states.

For Individuals interested in tracking personal biorhythm cycles and mood patterns for self-reflection.

What does it look like?

Key features

Biorhythm Chartingstandard

Visualizes physical, emotional, and intellectual cycles based on birth date using line graphs

Daily Feeling Recordsedge

Logs user-reported daily moods for side-by-side comparison with calculated biorhythm cycles

Multi-Member Managementstandard

Supports tracking biorhythm charts for multiple individuals within a single account

Web-Linked Data Accessedge

Syncs app data to a web interface for browser-based viewing

How much does it cost?

freeFree access to all features

Biorhythm Tracker is currently free and ad-supported with no observable in-app purchases or subscription gates.

Velocity

Dormant developmentnew contentShow more...

Biorhythm Tracker has remained inactive for 181 days since its initial launch. With only a single version released in the observed window, the app shows no signs of ongoing development or maintenance. There have been no feature updates, bug fixes, or operational events since the app first appeared on the store.

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Who built it?

Masahiro Sakai

2 apps tracked · Health & Fitness

花火に行こう Plus花火に行こう Plus
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User Sentiment

What do users think recently?

How are ratings & reviews evolving?

Google Play
0.00 · 0
App Store
0.00 · 0

Not enough recent reviews to extract reliable themes yet.

Read the full review analysis

Competition

Competitive landscape for Biorhythm Tracker

How's the Health & Fitness market?

Biorhythm Tracker occupies a niche in the Health & Fitness category, currently maintaining a free-to-use model without in-app purchases. The absence of recent updates since the initial release in March 2026 places it at a disadvantage against active competitors in the wellness-tracking space.

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The rivals identified

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The Analyst's Read

Key takeaways for Biorhythm Tracker

Where is it heading?

The personal wellness market is consolidating around apps that offer active, data-driven insights rather than static cycle charts. Biorhythm Tracker's current maintenance-mode status leaves it exposed to competitors that maintain a regular release cadence, which will likely lead to a decline in user engagement over the coming quarters.

  • The six-month release gap indicates a maintenance-only posture, which limits the ability to respond to user needs or category shifts.
  • The current free-only model provides no clear path to revenue, which restricts the resources available for future feature expansion.

The SWOT

Core Strengths
  • Multi-member management enables household-level tracking
  • Web-linked data access provides cross-platform utility
Critical Frictions 2 weaknesses inside
Growth Levers
  • Integrating mood-correlation insights could increase session frequency
Market Threats 1 threat identified

Next best moves

1 Maintain

Ship a minor update to confirm active development because the six-month silence signals abandonment to users → restore brand trust

The counter-intuitive read

The lack of monetization is a strategic liability rather than a user benefit…

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Bottom line

Biorhythm Tracker provides a functional utility for cycle tracking, but the six-month release gap threatens its long-term viability. Establishing a predictable update cadence would signal to users that the product remains supported, which is necessary to retain the current user base.

Unlock 2 critical frictions, 1 market threat and the analyst’s take.

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Sources

  1. [1] App Store, source

Report last updated

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Biorhythm Tracker, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Biorhythm Tracker Intelligence Report.” Updated Sep 11, 2026. https://marlvel.ai/apps/biorhythm-tracker

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