Biorhythm-365 is a lifestyle utility for iOS that calculates and graphs physiological, emotional, and intellectual cycles based on user birth dates.
The App DNA
What makes this app unique?
Users track these cycles to identify potential efficiency dips or peaks, using the data to inform daily activity planning and avoid unreasonable commitments during projected low-energy periods.
For Individuals interested in tracking physiological and emotional cycles for personal scheduling and activity planning.
What does it look like?
Key features
Calculates four distinct rhythm cycles using sine wave formulas.
Displays rhythm status from -100 to +100 as visual charts.
Allows date adjustment to view historical or future projections.
How much does it cost?
The app operates as a free utility with no monetization gates, though users request a paid ad-removal option.
Velocity
Maintenance developmentopaqueperformanceShow more...
The app maintains a maintenance-level cadence, with the latest release occurring 12 days ago. Development is currently limited to routine maintenance and inspection, with no evidence of new features or content updates. The release notes remain opaque, providing no insight into specific improvements or technical changes. The current development trend is stable but strictly focused on backend upkeep.
Who built it?
Jeonghwan Kim
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FlagDict+: World FlagsUser Sentiment
What do users think recently?
Fresh user feedback skews excited. Users appreciate long-term users value the simple and accurate visualization of daily biorhythm cycles for personal planning and high contrast graphics and primary colors make the interface easy to read at a glance.
How are ratings & reviews evolving?
What users say, by theme
- Long-term users value the simple and accurate visualization of daily biorhythm cycles for personal planning
- High contrast graphics and primary colors make the interface easy to read at a glance
- Recent updates introduced jagged lines and UI regressions that disrupt the previously smooth graph visualization
49 of 49 recent reviews analyzed · high confidence · Excited overall
Read the full review analysisUnlock 1 more frustration theme and 2 user requests, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for Biorhythm-365
How's the Lifestyle market?
Biorhythm-365 maintains a 4.72 rating across 3,863 total ratings on iOS, positioning it as a stable utility in the lifestyle category. The lack of a paid tier despite user demand for ad removal signals an uncaptured revenue opportunity relative to its consistent install base.
The rivals identified
The Analyst's Read
Key takeaways for Biorhythm-365
Where is it heading?
The lifestyle utility market is shifting toward more interactive, data-rich health tracking, leaving Biorhythm-365's static sine-wave model exposed. Unless the developer addresses the recent UI regressions and adds long-term trend navigation, the app risks losing its core base to more modern, feature-complete alternatives.
- UI regressions in the latest release erode the daily habit, which compounds the navigation friction already visible in user feedback.
- High user demand for a paid ad-removal option indicates a strong willingness to pay that remains unaddressed by the current model.
The SWOT
- Sine-wave calculation engine provides verifiable logic for cycle projections
- One-time ad-removal purchase would capture revenue from power users
Next best moves
Rebuild graph rendering logic because recent updates introduced jagged lines → restore visual polish
+ 1 more prioritized moveThe counter-intuitive read
The lack of a subscription model is not…
Read the full takeSince the last report: The competitive outlook shifted from stable to mixed as navigation friction and UI regressions began to threaten the daily user habit. The analyst perspective on monetization also pivoted, moving from viewing the lack of paid tiers as a missed opportunity to identifying it as a potential retention advantage.
Bottom line
Biorhythm-365 retains a loyal base through its core calculation utility, but the recent UI regression threatens the daily habit. Implementing a one-time ad-removal fee would address user requests and unlock revenue without disrupting the current free-tier value proposition.
Unlock 1 critical friction, 1 market threat, 1 more prioritized move and the analyst’s take.
Access the full report for freeFAQ
Is Biorhythm-365 free to use?
Does Biorhythm-365 offer yearly trend views?
What should I use if I want more than just daily cycles?
Sources
- [1] App Store, source
Report last updated