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 Mood
What makes this app unique?
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
Explore the full BioWink report
Portfolio breakdown, audience, momentum, and every app published by BioWink.
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.
How have ratings & review volume moved?
Rating, review sentiment, and total reviews over time, with release markers showing the post-launch impact.
Vertical markers = app releases. Hover any release for the post-release impact delta.
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
What is the competitive landscape for Clue Period & Cycle Tracker?
Where is it available?
Localized markets (11)
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.
Rank progression
187 active rankings tracked — 30-day window
Which niche is Clue Period & Cycle Tracker in?
to monitor menstrual cycles and reproductive health
Explore the full Period Tracking Trackers niche
Every app in this space — 35 tracked, the niche's live rankings, and Marlvel's editorial take on the job-to-be-done.
The rivals identified
Nemeses(1)
Glow Eve is a direct nemesis due to its massive user base and feature-rich ecosystem that extends beyond simple tracking into community and partner engagement.
Contenders(4)
This app is a direct contender for the budget-conscious user, offering essential tracking features with a straightforward, no-frills interface.
Once competes by focusing on pregnancy-centric features and daily tips, appealing to users specifically in the conception phase.
This app competes by bundling cycle tracking into a broader subscription ecosystem, targeting users who prefer all-in-one utility apps.
Cube competes for the same demographic by offering a highly customizable, aesthetic-focused tracking experience.
Same space(3)
Health4U represents the institutional medical space, providing a high-trust environment for users managing clinical health records.
This app shares the health-monitoring space, appealing to users who track multiple vital signs alongside their cycle.
Wild.AI overlaps with Clue by focusing on the intersection of hormonal health and physical performance.
Compare Clue Period & Cycle Tracker against every rival
All rivals in one side-by-side table — identity, store metrics, ratings & sentiment, and strategic intel — plus a head-to-head page for each.
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.