Biorhythm Calc is a cycle-tracking utility for iOS and Android that calculates physical, emotional, and intellectual patterns based on user birth dates.
The App DNA
What makes this app unique?
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.
For Individuals interested in tracking personal energy, mood, and mental clarity cycles.
What does it look like?
Key features
Calculates physical, emotional, and intellectual cycles based on user birth date
Persists user birth date locally to eliminate manual re-entry on subsequent launches
How much does it cost?
The app is currently free with no observable in-app purchases or ad-supported tiers.
Velocity
Maintenance developmentUX improvementsperformanceShow more...
Biorhythm Calc exhibits a maintenance-level cadence, with only two releases identified in the observed window. The latest version arrived 17 days ago, but the iOS platform has remained stagnant for over 400 days. Development is currently limited to minor updates, as no significant feature additions or live-service events have been documented in recent release notes. The current release frequency is insufficient to suggest active feature development.
Who built it?
Kornel Kaulics
2 apps tracked · Entertainment
Model Railway CalculatorUser Sentiment
What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for Biorhythm Calc
How's the Entertainment market?
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.
Read the market outlookThe rivals identified
Unlock the deeper market read.
Access the full report for freeThe Analyst's Read
Key takeaways for Biorhythm Calc
Where is it heading?
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.
The SWOT
- Local birthday persistence eliminates manual re-entry friction
- Integration of social cycle-sharing could differentiate the app from static calculators
Next best moves
Pivot to a social-sharing model because the current static calculator lacks a retention loop → increase daily active usage
+ 1 more prioritized moveThe counter-intuitive read
Users report: The lack of cloud sync or…
Read the full takeBottom 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.
Unlock 2 critical frictions, 1 market threat, 1 more prioritized move and the analyst’s take.
Access the full report for freeFAQ
Is Biorhythm Calc free to use?
Does Biorhythm Calc require an internet connection?
What alternatives exist for cycle tracking?
Sources
- [1] Play Store listing, source
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