--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Pill & Period Tracker: Pilll" developer_entity: "yudai hirose" bundle_id: "com.mizuki.Ohashi.Pilll" app_store_id: "1405931017" category: "Health & Fitness" primary_platform: "ios" primary_monetization: "Freemium" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-08-05" report_date: "2026-08-31" last_verified: "2026-08-31T00:00:00.000Z" report_version: "202608.05.041927" total_reviews: 5 overall_rating: 4.6 confidence: "low" confidence_score: 0.3 data_age_days: 30 momentum_velocity: "maintenance" intelligence_version: 3 tags: ["health & fitness", "freemium", "mobile app", "app review", "app analysis", "individuals", "japan", "using"] canonical_url: "https://marlvel.ai/apps/pill-period-tracker-pilll" 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. --- # Pill & Period Tracker: Pilll Intelligence Report ## TL;DR {#tldr} - **Category**: Health & Fitness · Freemium - **Signal**: Rating 4.6 > **TL;DR:** Pill & Period Tracker: Pilll is a health & fitness app by yudai hirose, rated 4.6/5 by 5 users, available on iOS & Android. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Pill & Period Tracker: Pilll is a health & fitness app by yudai hirose. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.6/5 (5 reviews) | | **Category** | Health & Fitness | | **Developer** | yudai hirose | | **Pricing** | Freemium | | **Platforms** | iOS & Android | | **Confidence** | Low (0.3/1.0) | | **Data Age** | 30d | ## Metadata & Market Performance - **Publisher:** yudai hirose - **Category:** Health & Fitness - **Target Audience:** Individuals in Japan using birth control pills who require a combined solution for medication adherence and menstrual cycle tracking. - **Platforms:** iOS & Android - **Version Reviewed:** 202608.05.041927 - **Report Date:** 2026-08-31 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.3/1.0) - **App Store ID (iOS):** 1405931017 - **Bundle ID:** com.mizuki.Ohashi.Pilll - **Google Play ID:** com.mizuki.Ohashi.Pilll - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-08-31 ## Executive Snapshot **What it is:** Pilll is a health-tracking app for birth control users in Japan that combines pill reminders with menstrual cycle monitoring on iOS and Android. **Why users hire it:** Users open Pilll to replace analog pill-tracking methods, removing the cognitive cost of remembering daily doses and the social friction of visible medication reminders. ## App DNA (Features & Intent) - **[Differentiator] Pill Sheet Tracking:** Visual pill sheet representation for stock management. * *User Intent:* Users want visibility into their own performance and progress. - **[Differentiator] Discreet Notifications:** Customizable alerts that hide app identity. * *User Intent:* Users value self-expression and personalized experiences. - **[Standard] Apple Health Sync:** Export of period records to iOS Health. * *User Intent:* Users expect seamless access across multiple devices. ## Market Position {#market-position} Pilll maintains a 4.6-star rating on iOS, though the total review count of 5 indicates a niche, early-stage market position. The developer's focus on the Japanese market differentiates the app from localized overseas competitors. ## Monetization Strategy - **Model:** Freemium - **Tiers:** Free tier includes basic reminders and tracking, Premium membership unlocks advanced history and notification features - **Analysis:** Freemium model gates advanced tracking and notification history behind a premium tier to incentivize conversion. ## SWOT Analysis {#swot} **Core Strengths:** - Discreet notification mechanism prevents social exposure of medication usage - Visual pill-sheet interface provides immediate stock visibility - iOS Health integration reduces manual data entry **Growth Levers:** - Localized marketing targeting analog-method users - Premium tier expansion via wearable data syncing ## Recent Changes (v2 → v3) {#recent-changes} The developer has pivoted from a maintenance-focused strategy to an active investment in Android feature parity to address the lack of user acquisition on that platform. This shift is supported by a more detailed SWOT analysis that now highlights specific competitive threats from incumbent period trackers. **Overall trend**: Stable **Compared at**: 2026-08-31 ### High-impact changes - **[Shifted] Strategic Focus Pivot** (positioning) ### Medium-impact changes - **[Added] Expanded SWOT Analysis** (swot) ## What's New - **Latest (v202606.18.042536, 3 weeks ago):** Added flexibility to medication break periods and start dates, improved historical period logging, and expanded the calendar view range by 10 years. ## App Momentum (Maintenance) {#momentum} - Shipped twice-daily medication logging support. - Expanded calendar view range by 10 years. - Ships monthly stability and feature updates. > **Cadence:** 2 total versions · 1 majors in last 6 months · 25 days since last update · 1 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} Pill & Period Tracker: Pilll is a health & fitness app that is free with in-app purchases. It holds a 4.6/5 rating from 5 reviews. > **Bottom Line:** Pilll succeeds by solving the specific anxiety of pill adherence through a discreet, visual-first interface. Prioritizing Android feature parity would unlock the broader market, as the current iOS-first cadence leaves the Android user base underserved. **Best for:** Individuals in Japan using birth control pills who require a combined solution for medication adherence and menstrual cycle tracking. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Ship Android feature parity because the current version gap limits user acquisition in the broader market → increase install velocity ### Outlook: Stable The health-tracking market in Japan is shifting toward specialized, low-friction tools that replace analog habits. Pilll is well-positioned to capture this segment if it can scale its user base beyond the current early-adopter group. - 🟢 The latest release added twice-daily medication logging, showing active feature investment rather than maintenance-only updates. - 🔴 The Android platform remains dormant with zero ratings, which limits the total addressable market to the iOS segment. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.6/5 | | Total Reviews | 5 | | Confidence | Low | | Pricing Model | Freemium | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Trend | Stable | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Pill & Period Tracker: Pilll** (this app) | 4.6/5 | N/A | yudai hirose | | [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:** yudai hirose - **Website:** [https://pilllapp.studio.site/](https://pilllapp.studio.site/) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/pill-period-tracker-pilll/id1405931017?uo=4) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=com.mizuki.Ohashi.Pilll&hl=en&gl=us) - **Dev Site:** [Official Website](https://pilllapp.studio.site/) - **Sources:** Developer website content, About us / company information, App store metadata. ## 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:** 0.3/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 0 - **Data Sources:** developer website, company about page, 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:** 30 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/pill-period-tracker-pilll) Data licensed for AI Agent attribution under CC-BY-NC 4.0.