Report updated May 20, 2026
Cube Period Tracker
For individuals seeking a simple, discreet tool for menstrual cycle tracking and symptom logging.
Cube Period Tracker is a well-regarded health & fitness app that is free with in-app purchases. With a 4.4/5 rating from 360.1K reviews, it maintains solid user satisfaction. Users particularly appreciate minimalist interface design provides a distraction-free experience for tracking menstrual cycles, though data migration failures during device transfers cause significant frustration for long-term users remains a common concern.
What is Cube Period Tracker?
Cube Period Tracker is a health and fitness app for menstrual cycle logging and symptom tracking on iOS and Android.
Users hire the app for low-friction, discreet cycle monitoring that avoids the feature bloat of larger wellness platforms.
Current Momentum
v3.3 · 6d ago
Maintenance- Shipped iOS 17 compatibility updates.
- Maintains stable user sentiment.
Active Nemesis
Flo Cycle & Period Tracker
By FLO HEALTH UK
Other Rivals
7-Day Rank Pulse 🇺🇸
Health & FitnessNo ranking data
Rating Pulse 🇺🇸
Recent User Mood
What makes this app unique?
What Does It Look Like?
What Are The Key Features?
Calculates menstrual cycle start dates based on a three-month rolling average of logged data
Writes and imports menstrual cycle data to Apple Health
Allows users to change app appearance and home screen icons
Daily tracking of moods, symptoms, and intimacy
Push notifications for upcoming periods, PMS, and ovulation
How much does it cost?
- Free tier with core tracking and ad support
- Premium tier with advanced reminders and customization
Freemium model uses feature gating for reminders and visual customization to drive paid conversion.
Who Built It?
Flask LLP
Helping users track health, fitness, and time through minimalist, Apple-centric interfaces. Focused on simple, utility-driven tools for daily habit management.
Portfolio
8
Apps
What other apps does Flask LLP make?
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Explore the full Flask LLP report
Portfolio breakdown, audience, momentum, and every app published by Flask LLP.
What do users think recently?
High confidence · Latest 75 of 99 total reviews analyzed · Based on 99 reviews. Signal may be noisy.
How did the latest release land?
What is the recent mood?
Recent user voice shows a excited sentiment. Users appreciate minimalist interface design provides a distraction-free experience for tracking menstrual cycles and home screen widget functionality offers convenient and discreet cycle countdowns for daily users, but report data migration failures during device transfers cause significant frustration for long-term users and inaccurate cycle predictions occur when the algorithm fails to account for irregular patterns.
What Users Love
What Frustrates Users
What Users Want
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 Cube Period Tracker?
How's The Health & Fitness Market?
How does it evolve in the Health & Fitness market?
Cube Period Tracker maintains a 4.4-star rating across 360,080 total ratings, positioning itself as a reliable utility for users who prioritize simplicity over the feature-heavy ecosystems of competitors like Flo.
Rank progression
2 active rankings tracked — 30-day window
Which niche is Cube Period Tracker in?
to track menstrual cycles and predict periods
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 is the primary market leader that directly competes for the same demographic by offering a comprehensive cycle tracking experience that extends beyond simple logging into community and health analytics.
Contenders(4)
This app competes by adding a specific utility layer—menstrual product timing—to the standard cycle tracking experience.
This app is a direct functional alternative that mirrors the core tracking and symptom logging capabilities of the target app.
Once targets the same user base by emphasizing cycle prediction algorithms and daily health tips to maintain engagement.
This app competes directly by offering a similar core cycle prediction and symptom logging feature set within the Health & Fitness category.
Same space(3)
This app represents the institutional medical approach to health tracking, competing for the user's time spent on health management.
While in the Medical category, it overlaps with the target app by providing health monitoring and data export features for chronic tracking.
Wild.AI targets the intersection of menstrual health and athletic performance, appealing to the more advanced segment of the target audience.
Compare Cube Period 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 Cube Period Tracker
Strengths to defend, gaps to attack
Core Strengths
- Minimalist interface design reduces user cognitive load
- Privacy-first data policy builds long-term user trust
- Home screen widget integration drives daily habit formation
Critical Frictions
- Data migration failures during device transfers
- Rigid prediction algorithm struggles with irregular cycles
- Widget update latency limits real-time utility
Growth Levers
- Expanded symptom logging for specific health notes
- Automated background syncing with platform-native health apps
- Dedicated pregnancy mode to retain users during life changes
Market Threats
- AI-driven competitors like Flo offer higher prediction accuracy
- Rapid release cadence of Clue erodes the simplicity advantage
- Regulatory shifts in health data privacy could impact current data-handling practices
What are the next best moves?
Rebuild data migration logic because migration failures are a top complaint → reduce churn of long-term users.
Data migration failures are a primary source of negative sentiment and loss of long-term user history.
Trade-off: Pause the wearable companion app sprint to Q3 — migration reliability is a higher retention priority.
Add manual override for cycle predictions because rigid algorithms trigger distrust in irregular-cycle users → improve retention.
Users report the app struggles with perimenopause and irregular cycles, leading to distrust.
Trade-off: Deprioritize the pregnancy mode feature — fixing core prediction accuracy is more critical for current users.
A counter-intuitive read
The app's simplicity is its primary risk: by avoiding feature bloat, it leaves a vacuum for AI-driven competitors to capture users who eventually require more sophisticated health analytics.
Feature Gaps vs Competitors
- AI-driven cycle predictions (available in Flo)
- Medically reviewed health content library (available in Flo)
- Advanced charting and data visualization (available in Fertility Friend)
Key Takeaways
Cube Period Tracker holds its category lead through minimalist utility but bleeds long-term users due to migration failures, so revenue growth hinges on fixing data persistence to retain the existing base.
Where Is It Heading?
Stable
The period tracking market is consolidating around AI-driven personalization, leaving simple trackers like Cube Period Tracker exposed to churn if they do not solve basic data-persistence issues. The app remains stable, but the lack of feature expansion relative to competitors like Clue suggests a defensive posture that will struggle to capture new demographics.
Data migration failures in the latest release cause historical data loss, which erodes long-term user trust and increases churn risk.
The minimalist, privacy-first design continues to attract users who feel overwhelmed by the feature-heavy interfaces of larger market competitors.