Report updated May 20, 2026
Period Tracker by GP Apps
For individuals seeking to track menstrual cycles, fertility windows, or pregnancy progress.
Period Tracker by GP Apps is an established health & fitness app that is free with in-app purchases. With a 4.5/5 rating from 432.5K reviews, it shows polarized user reception. Users particularly appreciate long-term reliability of cycle tracking provides consistent value for users over many years, though inaccurate cycle predictions following recent updates cause significant frustration for long-term users remains a common concern.
What is Period Tracker by GP Apps?
Period Tracker is a health and fitness app for menstrual cycle and fertility monitoring, available on iOS and Android.
Users hire the app for low-friction, daily cycle logging that provides predictable fertility windows without the complexity of clinical-grade alternatives.
Current Momentum
v12.0 · 6d ago
Maintenance- Integrated HealthKit and 3D Touch.
- Shipped Advanced TTC Mode.
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
Provides prompted timeline instructions for users attempting to conceive
Displays week-by-week images and articles with a countdown to the baby's due date
How much does it cost?
- Free ad-supported version
- Patron program subscription at $9.99 per billing period
Freemium model anchored by a $9.99 subscription, utilizing ad-inventory for the free user base.
Who Built It?
GP Apps
Providing long-term menstrual cycle and fertility tracking tools for individuals seeking health insights. Their apps focus on simple, calendar-based logging and symptom management.
Portfolio
3
Apps
What other apps does GP Apps make?
Explore the full GP Apps report
Portfolio breakdown, audience, momentum, and every app published by GP Apps.
What do users think recently?
High confidence · Latest 100 of 120 total reviews analyzed · Based on 120 reviews. Signal may be noisy.
How did the latest release land?
What is the recent mood?
Recent user voice shows a mixed sentiment. Users appreciate long-term reliability of cycle tracking provides consistent value for users over many years, but report inaccurate cycle predictions following recent updates cause significant frustration for long-term users.
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 Period Tracker by GP Apps?
How's The Health & Fitness Market?
How does it evolve in the Health & Fitness market?
The app maintains a high rating of 4.8 on iOS with over 73,000 reviews, yet the Android rating lags at 4.4 across 359,000 reviews. This platform-specific sentiment gap signals that technical debt on Android is eroding the user base relative to the iOS experience.
Rank progression
24 active rankings tracked — 30-day window
Which niche is Period Tracker by GP Apps in?
to monitor menstrual cycles and fertility 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 competitor that targets the same health-conscious demographic by combining cycle tracking with deep social and analytical features.
Contenders(4)
This app is a direct functional alternative that offers a similar feature set, including pregnancy modes and cycle prediction engines.
Once competes directly by focusing on cycle prediction algorithms and pregnancy probability, appealing to users with specific fertility goals.
Cycle Air targets the same user base by emphasizing cycle prediction and symptom logging within a streamlined, subscription-based ecosystem.
Cube competes by offering a highly customizable aesthetic and comprehensive symptom logging that mirrors the target's core functionality.
Same space(3)
Health4U serves as a broader medical record management tool, competing for the user's attention in the health and fitness category.
While focused on blood pressure, this app competes for the same 'health monitoring' screen time as the target app.
Wild.AI targets the intersection of hormonal health and athletic performance, appealing to the target's more advanced, data-driven users.
Compare Period Tracker by GP Apps 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 Period Tracker by GP Apps
Strengths to defend, gaps to attack
Core Strengths
- Decade-long data history creates high switching costs
- Simple button-press interface reduces daily logging friction
Critical Frictions
- Premium tier at $9.99 exceeds category median
- 0.38 rating gap between iOS and Android platforms
Growth Levers
- Unlock historical data charts to rebuild user trust
- Integrate wearable data for high-precision fertility tracking
Market Threats
- Flo’s AI-driven health assistant captures high-intent users
- Clue’s 20-release cadence outpaces current stability updates
What are the next best moves?
Audit prediction algorithm because inaccurate cycle dates are the top complaint → stabilize retention
Inaccurate cycle predictions are the primary driver of negative sentiment in recent reviews.
Trade-off: Pause the development of new pregnancy articles to prioritize core engine stability.
Unlock historical data charts because paywalling legacy logs is a top churn driver → improve sentiment
Loyal users cite the paywalling of previously free historical data as a primary reason for potential uninstallation.
Trade-off: Delay the rollout of new UI skins to focus on restoring user trust.
A counter-intuitive read
The app's simplicity is its greatest risk: by avoiding complex health-assistant features, it leaves a vacuum that competitors fill, making it a target for acquisition or displacement by AI-native rivals.
Feature Gaps vs Competitors
- AI-driven health assistant (available in Flo but absent here)
- Science-backed content library (available in Clue but absent here)
Key Takeaways
The app maintains a strong base through long-term habit formation, but recent algorithmic inaccuracies and paywall friction threaten to drive users to more modern competitors, so the PM must prioritize engine stability and restore access to legacy features to prevent churn.
Where Is It Heading?
Declining
The menstrual tracking market is consolidating around AI-driven, science-backed platforms that offer more than simple logging. GP Apps is currently exposed, as its maintenance-mode update cadence fails to address the prediction accuracy issues that are actively driving users to competitors like Flo and Clue.
Inaccurate cycle predictions in the latest release erode user trust, leading to increased churn among long-term, high-value users.
The paywalling of historical data creates friction that alienates loyal users, directly impacting the long-term retention of the subscriber base.