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Daily Biorhythm

Daily Biorhythm

By Daniele Chiaradia

Daily Biorhythm is a health-tracking utility for iOS that calculates biological cycles based on birth dates.

The App DNA

What makes this app unique?

The app removes the privacy cost of cloud-based health tracking by keeping all birth data stored locally on the device.

For Individuals interested in alternative health tracking and biological cycle monitoring.

What does it look like?

Key features

Biorhythm Cycle Calculationstandard

Calculates physical, emotional, and intellectual cycles based on birth date.

Pro Cycle Expansionedge

Unlocks nine additional cycles via one-time purchase.

Local Data Storageedge

Stores birth data exclusively on-device to ensure user privacy.

How much does it cost?

freemiumFree tier with 3 basic cyclesPro version via one-time purchase for 9 additional cycles and unlimited profiles

The one-time purchase model provides a clear differentiator against the subscription-heavy health category.

Velocity

Maintenance developmentperformanceShow more...

Daily Biorhythm is currently in a maintenance phase, with only one release shipped in the last 91 days. The development trend is stagnant, as the latest release provided only generic bug fixes without introducing new features or content. Given the lack of updates over the past three months, the app appears to be in a long-term support cycle rather than active development.

See all version history

Who built it?

Daniele Chiaradia

1 app tracked · Health & Fitness

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User Sentiment

What do users think recently?

How are ratings & reviews evolving?

App Store
4.85 · 20

Not enough recent reviews to extract reliable themes yet.

Read the full review analysis

Competition

Competitive landscape for Daily Biorhythm

How's the Health & Fitness market?

Daily Biorhythm occupies a niche utility space in Health & Fitness, maintaining a 4.8-star rating across 20 reviews. The absence of recent feature updates signals a maintenance-mode posture that relies on its privacy-first brand rather than active market expansion.

Read the market outlook

The rivals identified

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The Analyst's Read

Key takeaways for Daily Biorhythm

Where is it heading?

The health-tracking market is consolidating around generalist platforms, leaving niche utilities like Daily Biorhythm to compete on specific value propositions like privacy. Without a shift toward cloud-based data portability, the app will likely remain a static utility rather than a growing platform.

  • The maintenance-only release cadence suggests the developer is prioritizing stability over new feature growth, limiting the app's ability to capture new market share.
  • The one-time purchase model remains a strong differentiator in a category dominated by recurring subscriptions, which helps retain price-sensitive users.

The SWOT

Core Strengths
  • Local-only data storage removes privacy friction.
  • One-time purchase model avoids subscription fatigue.
  • Twelve native widgets sustain daily visibility.
Critical Frictions 3 weaknesses inside
Growth Levers
  • Cloud-sync integration would enable multi-device usage.
  • Educational content could increase daily engagement.
Market Threats 2 threats identified

Next best moves

1 Invest · 1 Maintain

Ship cloud-sync for profile data because it is the primary barrier to multi-device usage → increase retention

+ 1 more prioritized move

The counter-intuitive read

The privacy-first local storage is a retention risk, not just a feature…

Read the full take

Bottom line

Daily Biorhythm maintains a stable niche through its privacy-first, one-time-purchase model, but the lack of active feature development threatens long-term retention. Prioritizing a cloud-sync option would address the primary barrier to multi-device adoption and increase user lifetime value.

Unlock 3 critical frictions, 2 market threats, 1 more prioritized move 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 Daily Biorhythm, 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. “Daily Biorhythm Intelligence Report.” Updated Sep 15, 2026. https://marlvel.ai/apps/daily-biorhythm

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