--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Period Tracker: Cycle Calendar" developer_entity: "Shanghai Yiqing Refrigeration Equipment Engineering Co., Ltd." bundle_id: "com.ysy.iMonthly" app_store_id: "1541331292" category: "Health & Fitness" primary_platform: "ios" primary_monetization: "Freemium" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2026-06-03" report_date: "2026-08-27" last_verified: "2026-08-27T00:00:00.000Z" report_version: "6.2" total_reviews: 144 overall_rating: 4.6 sentiment: "Thrilled" sentiment_score: 85 confidence: "low" confidence_score: 0.35 top_praise_theme: "Younger users appreciate the age-appropriate design that avoids the restrictive age gates found in rival apps" top_complaint_theme: "Limited selection of discharge tracking options restricts the ability to log specific health data points" review_sample_size: 8 total_review_count: 8 analyzed_review_count: 8 data_age_days: 34 momentum_velocity: "maintenance" intelligence_version: 3 tags: ["health & fitness", "freemium", "thrilled sentiment", "mobile app", "app review", "app analysis", "individuals", "seeking", "track"] canonical_url: "https://marlvel.ai/apps/period-tracker-cycle-calendar" license: "CC-BY-NC 4.0" content_version: "v2" --- ## ⚠ Content Warning This report covers topics classified as sensitive (health). Information is aggregated from public sources for informational purposes only. This is not medical advice. Consult a qualified professional before acting on any information here. --- # Period Tracker: Cycle Calendar Intelligence Report ## TL;DR {#tldr} - **Category**: Health & Fitness · Freemium - **Signal**: Rating 4.65 · Sentiment Thrilled - **Recent focus**: Limited selection of discharge tracking options restricts the ability to log specific health data points (top complaint) · Younger users appreciate the age-appropriate design that avoids the restrictive age gates found in rival apps (top praise) > **TL;DR:** Period Tracker: Cycle Calendar is a health & fitness app by Shanghai Yiqing Refrigeration Equipment Engineering Co., Ltd., rated 4.65/5 by 144 users, with Thrilled user sentiment (85/100), available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Period Tracker: Cycle Calendar maintains Thrilled user sentiment (4.65/5 from 144 reviews), with users consistently praising younger users appreciate the age-appropriate design that avoids the restrictive age gates found in rival apps. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.65/5 (144 reviews) | | **User Mood** | Thrilled | | **Category** | Health & Fitness | | **Developer** | Shanghai Yiqing Refrigeration Equipment Engineering Co., Ltd. | | **Pricing** | Freemium | | **Platforms** | iOS | | **Confidence** | Low (0.35/1.0) | | **Data Age** | 34d | ## Metadata & Market Performance - **Publisher:** Shanghai Yiqing Refrigeration Equipment Engineering Co., Ltd. - **Category:** Health & Fitness - **Target Audience:** Individuals seeking to track menstrual cycles, monitor fertility, or manage pregnancy-related health data. - **Platforms:** iOS - **Version Reviewed:** 6.2 - **Report Date:** 2026-08-27 - **Signal Count:** 8 reviews analyzed - **Confidence:** Low (0.35/1.0) - **App Store ID (iOS):** 1541331292 - **Bundle ID:** com.ysy.iMonthly - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-08-27 ## Executive Snapshot **What it is:** Period Tracker: Cycle Calendar is a health-tracking tool for menstrual cycles, ovulation, and symptom logging on iOS. **Why users hire it:** The app removes the friction of complex, ad-heavy interfaces, serving users who prioritize private, granular symptom documentation over social or community-driven features. ## App DNA (Features & Intent) - **[Standard] Cycle Prediction:** Calculates upcoming periods, fertile windows, and ovulation days based on logged cycle history. - **[Standard] Symptom and Mood Logging:** Records daily health metrics including flow, cramps, weight, temperature, and mood notes. * *User Intent:* Users are motivated by consistent progression and daily incentives. - **[Differentiator] Pregnancy Mode:** Enables countdown function to calculate baby due date. ## Market Position {#market-position} Period Tracker: Cycle Calendar maintains a 4.6-star rating across 144 total ratings, signaling high user satisfaction with its core tracking utility. The lack of a major update in the last 85 days suggests a stable, maintenance-mode position rather than an aggressive growth strategy. ## Monetization Strategy - **Model:** Freemium - **Tiers:** Free version with basic tracking, Premium subscription with auto-renewal - **Analysis:** The freemium model gates advanced trend charts and data insights behind an auto-renewing subscription. ## 🟢 User Sentiment (Low Confidence: 8 of 8 reviews analyzed) {#user-sentiment} - **Overall Rating:** 4.65/5 - **Platform Split:** iOS 4.6/5 (144 ratings) - **Overall Sentiment:** Thrilled ### Top Praises - **Younger users appreciate the age-appropriate design that avoids the restrictive age gates found in rival apps** - **Detailed symptom logging options allow users with chronic conditions to track pain levels effectively** - **Free access to core tracking features provides high value for users seeking a no-cost solution** ### Top Complaints (Impact Areas) - **Limited selection of discharge tracking options restricts the ability to log specific health data points** ## SWOT Analysis {#swot} **Core Strengths:** - Granular symptom logging supports chronic condition tracking - Age-appropriate design avoids restrictive age gates **Growth Levers:** - Expanded discharge tracking categories would address top user request ## Recent Changes (v2 → v3) {#recent-changes} The app's competitive outlook has shifted toward a more defensive posture, acknowledging that the lack of feature expansion creates churn risk against consolidating, feature-rich rivals. No functional changes to the product or pricing occurred during this period. **Overall trend**: Stable **Compared at**: 2026-08-27 ### Medium-impact changes - **[Shifted] Threat profile update** (swot) - **[Shifted] Outlook narrative pivot** (positioning) ## What's New - **Latest (v6.2, 2 months ago):** Maintenance update focused on stability and bug fixes. ## App Momentum (Maintenance) {#momentum} - Ships stability updates at ~12-week cadence. - Maintains maintenance-only release velocity. > **Cadence:** 1 total versions · 0 majors in last 6 months · 84 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Period Tracker: Cycle Calendar is a market-leading health & fitness app that is free with in-app purchases. With a 4.65/5 rating from 144 reviews, it delivers strong user satisfaction. > **Bottom Line:** Period Tracker: Cycle Calendar retains users through granular logging and accessible design, but the lack of feature expansion risks churn as users seek more comprehensive health insights. **Best for:** Individuals seeking to track menstrual cycles, monitor fertility, or manage pregnancy-related health data. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Expand discharge tracking categories because it is the top user request → increase data logging utility ### Outlook: Stable The menstrual tracking market is consolidating around apps that offer deeper health-trend insights and community features. Period Tracker: Cycle Calendar remains stable by serving a specific, privacy-focused niche, but it must address the requested symptom-logging gaps to prevent churn to more active competitors. - 🟢 High user satisfaction with granular symptom logging creates a sticky retention loop for users with chronic health conditions. - 🔴 The 12-week maintenance cadence risks losing users to competitors who ship frequent feature updates and community-driven health insights. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.65/5 | | Total Reviews | 144 | | Sentiment | Thrilled (85/100) | | Confidence | Low | | Pricing Model | Freemium | | Platforms | iOS | | Key Features | 3 analyzed | | Trend | Stable | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Period Tracker: Cycle Calendar** (this app) | 4.65/5 | Thrilled | Shanghai Yiqing Refrigeration Equipment Engineering Co., Ltd. | | [GoTall - Height Predictor](https://marlvel.ai/apps/gotall-height-predictor) | 4.6/5 | n/a | Grow Labs LLC | | [Mind - Méditations guidées](https://marlvel.ai/apps/mind-m-ditations-guid-es) | 4.6/5 | Excited | MIND AND CIE | | [Strava: Run, Bike, Walk](https://marlvel.ai/apps/strava-run-bike-walk) | 4.7/5 | n/a | Strava, Inc. | | [Taller AI: Height Maximizer](https://marlvel.ai/apps/taller-ai-height-maximizer) | 4.7/5 | Excited | Leadimize | | [TallerTeen - Grow Taller Now](https://marlvel.ai/apps/tallerteen-grow-taller-now) | 4.7/5 | n/a | Viral App Developement LLC | ## Company Profile - **Developer:** Shanghai Yiqing Refrigeration Equipment Engineering Co., Ltd. ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/period-tracker-cycle-calendar/id1541331292?uo=4) - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*GoTall - Height Predictor*](https://marlvel.ai/apps/gotall-height-predictor) (Grow Labs LLC) · 4.6/5 Rating - [*Mind - Méditations guidées*](https://marlvel.ai/apps/mind-m-ditations-guid-es) (MIND AND CIE) · 4.6/5 Rating | Positive Sentiment - [*Strava: Run, Bike, Walk*](https://marlvel.ai/apps/strava-run-bike-walk) (Strava, Inc.) · 4.7/5 Rating - [*Taller AI: Height Maximizer*](https://marlvel.ai/apps/taller-ai-height-maximizer) (Leadimize) · 4.7/5 Rating | Positive Sentiment - [*TallerTeen - Grow Taller Now*](https://marlvel.ai/apps/tallerteen-grow-taller-now) (Viral App Developement LLC) · 4.7/5 Rating - [*Activity Tracker・FitnessView*](https://marlvel.ai/apps/activity-tracker-fitnessview) (Funn Media, LLC) · 4.0/5 Rating - [*Avatran Soul*](https://marlvel.ai/apps/avatran-soul) (Avatran GmbH) · N/A Rating - [*Bubblic: Connect with people.*](https://marlvel.ai/apps/bubblic-connect-with-people) (Bubblic Inc.) · 4.6/5 Rating | Excellent Sentiment - [*evolum - Meditation & Yoga*](https://marlvel.ai/apps/evolum-meditation-yoga) (Evolum) · 4.7/5 Rating | Positive Sentiment - [*Holoholo: Daily Memories*](https://marlvel.ai/apps/holoholo-daily-memories) (For Pedestrians LLC.) · 4.4/5 Rating ## Methodology {#methodology} This report was generated by Marlvel.ai's 5-stage AI intelligence pipeline: 1. **Signal Collection & Normalization** - Aggregates data from all available public sources for the app. Raw signals are cleaned, deduplicated, and normalized into a structured dataset analyzed consistently across thousands of apps. 2. **Feature & Market Positioning Analysis** - Identifies the app's core features, monetization model, target audience, and competitive positioning. Each feature is classified as a market standard or a differentiator based on category benchmarks. 3. **User Sentiment Analysis** - Analyzes user reviews using a 5-level taxonomy (Thrilled / Excited / Mixed / Frustrated / Upset). Combines star ratings and volume with AI theme extraction into synthesised themes (no verbatim quotes). 4. **Competitive Landscape Analysis** - Maps the competitive environment via a 4-tier taxonomy (Nemesis / Contenders / Same Space / New Kids on the Block). Prioritizes same sub-genre over broad category. 5. **Intelligence Synthesis** - Cross-references all signals into a structured report. Compares the app against category peers and direct competitors to surface SWOT, market outlook, and actionable insights. - **Confidence Score:** 0.35/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 8 - **Data Sources:** user reviews, App Store metadata - **Rating Method:** Weighted average across platforms (iOS & Android), weighted by review count per platform - **Independence:** Fully independent analysis. No publisher sponsorship or editorial influence. - **Report Age:** 34 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/period-tracker-cycle-calendar) Data licensed for AI Agent attribution under CC-BY-NC 4.0.