By BioWink
Report updated May 20, 2026
Clue Period & Cycle Tracker
For people with cycles seeking evidence-based health tracking, fertility support, or management of specific reproductive conditions.
Clue Period & Cycle Tracker is a challenged health & fitness app that is available. With a 4.8/5 rating from 394.7K reviews, it faces significant user friction. Users particularly appreciate accurate cycle prediction and symptom tracking provide significant health insights for long-term users, though aggressive subscription upsell popups interrupt the core tracking workflow multiple times per session remains a common concern.
What is Clue Period & Cycle Tracker?
Clue is a period and cycle tracking app for people with cycles, providing health insights and fertility predictions on iOS.
Users hire Clue for evidence-based reproductive health tracking that prioritizes data privacy and clinical accuracy over lifestyle-focused aesthetics.
Current Momentum
v276.0 · 6d ago
Intense- Integrated wearable biometric data syncing.
- Launched My Health Record clinical tracking.
Active Nemesis
Flo Cycle & Period Tracker
By FLO HEALTH UK
Other Rivals
7-Day Rank Pulse 🇺🇸
Health & FitnessRating Pulse 🇺🇸
Recent User MoodAI-powered deep analysis surfacing high-signal insights. Still in beta, accuracy improves daily. For informational purposes only.
What makes this app unique?
How Is The App's Momentum Right Now?
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What Are The Key Features?
Unlocks advanced cycle insights, personalized predictions, and unlimited access to expert-led medical content.
Syncs temperature trends, sleep data, and heart rate biometrics with cycle tracking.
Enables sharing of cycle data and fertility status with a partner.
How much does it cost?
- Free tier with basic cycle statistics and predictions
- Clue Plus premium subscription with advanced insights and unlimited content
Freemium model anchored by a subscription-based premium tier that gates advanced analytics and specialized tracking modes.
Who Built It?
Providing science-based menstrual health tracking and reproductive insights with a focus on data privacy and biometric integration.
Portfolio
1
Apps
Who is BioWink?
BioWink distinguishes itself in the menstrual health category through a science-focused positioning and a commitment to GDPR-compliant data privacy, which serves as a key differentiator in the reproductive health data sector. While many competitors focus on lifestyle aesthetics, Clue leverages biometric integrations with wearables to transition from manual logging to passive health monitoring. The primary strategic tension lies in maintaining this clinical, data-secure identity while scaling its subscription model against less-regulated alternatives.
Who is BioWink for?
- Individuals with menstrual cycles seeking data-driven insights into reproductive health
- Fertility
- Hormonal patterns
Portfolio momentum
Maintained an intense development pace with 12 updates for its flagship title over the last 6 months.
What do users think recently?
Low confidence · 49 reviews analyzed
How did the latest release land?
What is the recent mood?
Recent user voice shows a frustrated sentiment. Users appreciate accurate cycle prediction and symptom tracking provide significant health insights for long-term users, but report aggressive subscription upsell popups interrupt the core tracking workflow multiple times per session.
Limited review volume (49 reviews). Sentiment analysis will deepen as more data lands.
What is the competitive landscape for Clue Period & Cycle Tracker?
How's The Health & Fitness Market?
How does it evolve in the Health & Fitness market?
Clue holds the #46 position on the US Photo & Video chart, with the Grossing rank lagging behind the Free rank, signaling monetization friction relative to its discovery advantage.
| Country | Category | Chart | Rank | Change |
|---|---|---|---|---|
| 🇸🇳 Senegal | Health & Fitness | iOSFree | #15 | ▼1 |
| 🇺🇸 US | Health & Fitness | iOSFree | #49 | ▼1 |
The rivals identified
The Nemesis
Head to Head
Clue must pivot from being a utility-only tracker to a holistic health companion by integrating more educational content and AI-driven insights to compete with Flo's engagement-heavy model.
What sets Clue Period & Cycle Tracker apart
Clue maintains a more clinical and science-first brand identity that appeals to users seeking medical-grade data privacy
Simplified, non-judgmental interface design avoids the 'pink-tax' aesthetic often found in competing period tracking applications
What's Flo Cycle & Period Tracker's Edge
Flo leverages a massive content library to drive daily active usage, whereas Clue remains primarily a utility-focused tool
Superior social and community features allow users to share experiences within a secure, moderated environment
Contenders
Focuses on rapid synchronization across multiple devices to ensure consistent data availability for power users
Implements frequent UI tweaks based on user feedback loops to minimize friction in daily logging tasks
Period Tracker Period Calendar
★4.9 (167.5K)ABISHKKING LIMITED.
⚡High-frequency update cadence (13 releases in 6 months) indicates a focus on rapid feature iteration and bug squashing.
Prioritizes a highly visual, calendar-centric UI that makes long-term cycle history immediately accessible at a glance
Includes integrated weight and temperature tracking modules that provide a more comprehensive view of physical health
Stardust Period Tracker
★4.8 (101.7K)Stardust App LLC (New York)
⚡Strong market positioning targeting younger demographics through astrology-integrated cycle tracking and unique aesthetic branding.
Integrates lunar and astrological cycle data to provide a unique, personality-driven user experience for cycle tracking
Employs a distinct, non-traditional design language that differentiates the app from standard clinical health trackers
Peers
Cycles: Period & Cycle Tracker
★4.7 (25.4K)Perigee
A long-standing competitor in the space that emphasizes minimalist design and simplicity for the end user.
Minimalist design philosophy removes all non-essential features to focus exclusively on cycle prediction accuracy
Offers a simplified partner-sharing feature that allows for private, secure cycle information exchange
Moody Month: Hormone Tracker
★4.6 (879)We Are Moody Ltd
⚡Differentiates by focusing specifically on the intersection of hormonal fluctuations and emotional well-being.
Provides daily mood-tracking insights specifically mapped to the user's current hormonal phase in their cycle
Offers curated wellness and nutrition advice tailored to the user's specific hormonal stage each day
The outtake for Clue Period & Cycle Tracker
Strengths to defend, gaps to attack
Core Strengths
- Clinical brand identity sustains user trust
- Multi-mode tracking extends user lifecycle
- Wearable integration automates biometric data input
Critical Frictions
- Aggressive subscription popups drive churn
- Lack of flexibility for irregular cycles
- Intrusive notifications disrupt user privacy
Growth Levers
- Expand exercise logging for diverse activities
- Leverage research partnerships for B2B distribution
- Improve notification granularity for privacy
Market Threats
- Flo's content-driven engagement model
- Stardust's demographic capture of younger users
- Rising user sensitivity to intrusive monetization
What are the next best moves?
Audit subscription popup frequency because high-frequency upsells are the #1 complaint → reduce churn
Sentiment analysis identifies aggressive upsells as the primary driver of negative reviews.
Trade-off: Pause the development of new premium content modules — current content is sufficient for existing user needs.
Add granular notification controls because users report privacy concerns during work hours → improve retention
Users complain that cycle-phase alerts are visible to coworkers, creating a privacy pain point.
Trade-off: Deprioritize the weight-tracking integration request — notification privacy has a higher impact on daily usage.
A counter-intuitive read
Clue's clinical focus is a liability in a market where Flo wins through content-driven engagement, suggesting the app needs to pivot to a health-companion model to survive.
Feature Gaps vs Competitors
- Integrated wellness and nutrition advice (available in Moody Month but absent here)
- Astrology-integrated cycle tracking (available in Stardust but absent here)
Key Takeaways
Clue maintains a strong clinical reputation, but the aggressive monetization strategy is actively eroding user trust, so the PM must prioritize reducing popup frequency to stabilize retention.
Where Is It Heading?
Declining
The period-tracking market is consolidating around engagement-heavy models, leaving utility-focused apps like Clue exposed. Unless the team shifts from aggressive monetization to a content-led retention strategy, the current sentiment decline will accelerate churn into the next quarter.
Aggressive subscription popups in the latest release drive high churn, which compounds the rating drag visible on Android.
Wearable integration successfully automates biometric data input, which increases daily logging frequency and strengthens the retention loop.