--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "280days: Pregnancy Diary" developer_entity: "amane factory inc." bundle_id: "com.amanefactory.totsukitoka" app_store_id: "995864179" category: "Parenting" primary_platform: "ios" primary_monetization: "Freemium" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-06-23" report_date: "2026-08-05" last_verified: "2026-08-05T00:00:00.000Z" report_version: "3.4.5" total_reviews: 40546 overall_rating: 4.4 sentiment: "Excited" sentiment_score: 75 confidence: "high" confidence_score: 0.7 top_praise_theme: "Daily developmental advice and baby growth tracking foster a strong emotional bond for expectant parents" top_complaint_theme: "Rigid registration requirements prevent users from setting up the app during early pregnancy stages" review_sample_size: 99 total_review_count: 99 analyzed_review_count: 61 data_age_days: 11 momentum_velocity: "maintenance" intelligence_version: 3 tags: ["parenting", "freemium", "excited sentiment", "mobile app", "app review", "app analysis", "expectant", "parents", "seeking"] canonical_url: "https://marlvel.ai/apps/280days-pregnancy-diary" license: "CC-BY-NC 4.0" content_version: "v2" --- # 280days: Pregnancy Diary Intelligence Report ## TL;DR {#tldr} - **Category**: Parenting · Freemium - **Signal**: Rating 4.39 · Sentiment Excited - **Recent focus**: Rigid registration requirements prevent users from setting up the app during early pregnancy stages (top complaint) · Daily developmental advice and baby growth tracking foster a strong emotional bond for expectant parents (top praise) > **TL;DR:** 280days: Pregnancy Diary is a parenting app by amane factory inc., rated 4.39/5 by 40.5K users, with Excited user sentiment (75/100), available on iOS & Android. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** 280days: Pregnancy Diary maintains Excited user sentiment (4.39/5 from 40.5K reviews), with users consistently praising daily developmental advice and baby growth tracking foster a strong emotional bond for expectant parents. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.39/5 (40.5K reviews) | | **User Mood** | Excited | | **Category** | Parenting | | **Developer** | amane factory inc. | | **Pricing** | Freemium | | **Platforms** | iOS & Android | | **Confidence** | High (0.7/1.0) | | **Data Age** | 11d | ## Metadata & Market Performance - **Publisher:** amane factory inc. - **Category:** Parenting - **Target Audience:** Expectant parents seeking a shared digital space to track pregnancy milestones, health records, and memories. - **Platforms:** iOS & Android - **Version Reviewed:** 3.4.5 - **Report Date:** 2026-08-05 - **Signal Count:** 99 reviews analyzed - **Confidence:** High (0.7/1.0) - **App Store ID (iOS):** 995864179 - **Bundle ID:** com.amanefactory.totsukitoka - **Google Play ID:** com.amanefactory.totsukitoka - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-08-05 - **Short Description:** Enjoy the gestation period build a pregnancy record & pregnancy diary in couple! ## Executive Snapshot **What it is:** 280days is a shared pregnancy diary and health tracking app for expectant couples on iOS and Android. **Why users hire it:** The app removes the communication friction between partners by syncing medical records and growth milestones into a single, shared digital space. ## App DNA (Features & Intent) - **[Differentiator] Couple Sharing:** Syncs pregnancy records, medical checkups, and diary entries between two linked accounts. * *User Intent:* Users expect seamless access across multiple devices. - **[Differentiator] Growth Illustrations:** Visualizes baby development with weekly updated illustrations and daily changing dialogue. * *User Intent:* Users are motivated by consistent progression and daily incentives. - **[Differentiator] Memorial Book Export:** Converts app-stored diary entries, ultrasound photos, and records into a physical or digital book. ## Market Position {#market-position} 280days maintains a 4.39 rating on Android and 4.75 on iOS, reflecting strong user satisfaction with its core shared-diary feature. The maintenance-mode release cadence suggests a stable, mature product rather than an aggressive growth phase. ## Monetization Strategy - **Model:** Freemium - **Tiers:** Free tier with ad-supported content, In-app purchase for ad removal - **Analysis:** The freemium model relies on high-frequency daily usage to drive ad inventory, with a direct IAP gate for ad removal. ## 🟢 User Sentiment (High Confidence: 61 of 99 reviews analyzed) {#user-sentiment} - **Overall Rating:** 4.39/5 - **Platform Split:** iOS 4.8/5 (481 ratings) | Android 4.4/5 (40.1K ratings) - **Overall Sentiment:** Excited ### Top Praises - **Daily developmental advice and baby growth tracking foster a strong emotional bond for expectant parents** - **The ability to create a printed keepsake book of pregnancy memories provides high long-term value** - **Interactive illustrations and cute design elements keep the user experience engaging throughout the pregnancy journey** ### Top Complaints (Impact Areas) - **Rigid registration requirements prevent users from setting up the app during early pregnancy stages** ## SWOT Analysis {#swot} **Core Strengths:** - Couple-sync mechanism creates high-switching-cost barrier - Memorial book export drives long-term retention - Daily growth illustrations foster consistent habit formation **Growth Levers:** - Expand family role settings for inclusivity - Add swipe gestures to improve navigation ## Recent Changes (v2 → v3) {#recent-changes} The report reflects a shift in competitive framing, moving from viewing the app's rigid design as a pure liability to recognizing it as a retention mechanism for a specific core audience. This update also incorporates iOS performance metrics to provide a broader view of the app's market standing. **Overall trend**: Stable **Compared at**: 2026-08-05 ### High-impact changes - **[Shifted] Expanded Market Context** (positioning) - **[Shifted] Contrarian Take Re-evaluation** (positioning) ### Medium-impact changes - **[Added] Competitive Threat Identification** (swot) - **[Added] FAQ Pricing Clarification** (pricing) ## What's New - **Latest (v3.4.5, 1 months ago):** General stability and performance improvements. ## App Momentum (Maintenance) {#momentum} - Ships stability and performance updates. - Maintains ~6-week release cadence. > **Cadence:** 1 total versions · 0 majors in last 6 months · 43 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} 280days: Pregnancy Diary is a market-leading parenting app that is free with in-app purchases. With a 4.39/5 rating from 40.5K reviews, it delivers strong user satisfaction. > **Bottom Line:** 280days retains core users through its shared-diary mechanism, but the rigid registration and sync instability create a leaky funnel that limits growth. Addressing these barriers would unlock higher long-term retention for the existing user base. **Best for:** Expectant parents seeking a shared digital space to track pregnancy milestones, health records, and memories. ### PM Action Plan (Next Best Moves) - [ ] [PIVOT] Remove mandatory baby name at registration because it is the top churn driver for early-stage users → increase new-user conversion ### Outlook: Stable The pregnancy tracking market is shifting toward more inclusive and flexible user experiences, leaving 280days exposed due to its rigid registration and family-role assumptions. Maintenance-mode updates will likely result in gradual market share erosion unless the team addresses the sync instability and registration friction that currently limit the user funnel. - 🔴 Persistent sync errors between partners erode the shared-experience value, which compounds the churn risk already visible in early-stage registration data. - 🟢 The memorial book export feature continues to drive long-term retention, providing a clear differentiator that keeps users engaged throughout the full pregnancy cycle. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.39/5 | | Total Reviews | 40.5K | | Sentiment | Excited (75/100) | | Confidence | High | | Pricing Model | Freemium | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Trend | Stable | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **280days: Pregnancy Diary** (this app) | 4.39/5 | Excited | amane factory inc. | | [이름샘 - 좋은 이름이 샘솟는 곳](https://marlvel.ai/apps/com-vibedevt-namingapp) | N/A/5 | N/A | Vibe_Dev_T | | [Astrological Baby Names](https://marlvel.ai/apps/com-tonyleadcompany-baby_scope) | 4.5/5 | N/A | Tony Lead Company | | [Baby: Breastfeeding Tracker](https://marlvel.ai/apps/baby-breastfeeding-tracker) | 4.7/5 | N/A | Wachanga | | [Baby Buddy: Pregnancy & Parent](https://marlvel.ai/apps/baby-buddy-pregnancy-parent) | N/A/5 | Thrilled | Babyzone | | [Baby Daybook - Newborn Tracker](https://marlvel.ai/apps/baby-daybook-newborn-tracker) | 4.8/5 | Excited | Baltapis | ## Company Profile - **Developer:** amane factory inc. - **Website:** [https://totsukitoka-apps.com/](https://totsukitoka-apps.com/) - **Social:** [Instagram](https://www.instagram.com/totsukitoka) · [Facebook](https://www.facebook.com/apps.totsukitoka) · [X/Twitter](https://twitter.com/totsukitoka_app) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/280days-pregnancy-diary-app/id995864179?uo=4) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=com.amanefactory.totsukitoka&hl=en&gl=us) - **Dev Site:** [Official Website](https://totsukitoka-apps.com/) - **Sources:** Developer website content, App store metadata, User reviews. ## Related Intel Reports - [*이름샘 - 좋은 이름이 샘솟는 곳*](https://marlvel.ai/apps/com-vibedevt-namingapp) (Vibe_Dev_T) · N/A Rating - [*Astrological Baby Names*](https://marlvel.ai/apps/com-tonyleadcompany-baby_scope) (Tony Lead Company) · 4.5/5 Rating - [*Baby: Breastfeeding Tracker*](https://marlvel.ai/apps/baby-breastfeeding-tracker) (Wachanga) · 4.7/5 Rating - [*Baby Buddy: Pregnancy & Parent*](https://marlvel.ai/apps/baby-buddy-pregnancy-parent) (Babyzone) · N/A Rating | Excellent Sentiment - [*Baby Daybook - Newborn Tracker*](https://marlvel.ai/apps/baby-daybook-newborn-tracker) (Baltapis) · 4.8/5 Rating | Positive Sentiment - [*Baby Lullabies*](https://marlvel.ai/apps/baby-lullabies) (IdeaMK) · 4.3/5 Rating - [*Baby Monitor 5G: Smart AI Cam*](https://marlvel.ai/apps/baby-monitor-5g-smart-ai-cam-1) (Master App Solutions) · N/A Rating - [*BABY MONITOR App: Nanny Cam*](https://marlvel.ai/apps/baby-monitor-app-nanny-cam) (Algorithm electronics) · 4.6/5 Rating | Positive Sentiment - [*Baby Monitor Nani: Secure Cam*](https://marlvel.ai/apps/de-nintec-video_baby_monitor) (Bitlink GmbH) · 4.5/5 Rating - [*Baby Name Genius: Swipe Names*](https://marlvel.ai/apps/com-verdantlabs-nametrix) (Verdant Labs) · 4.3/5 Rating ## Frequently Asked Questions {#faq} ### Is 280days suitable for single parents? Users report that 280days currently assumes a traditional mother-father dynamic, which can make the experience less inclusive for single parents or non-traditional families. ### Does 280days work offline? While the app allows for some local recording, users report that persistent sync errors between partners often require a stable internet connection to ensure data visibility. ### What is the difference between the free and paid versions? The app is free to use, with an in-app purchase available to remove advertisements displayed at the bottom of the screen. ## 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:** 0.7/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 99 - **Data Sources:** user reviews, developer website, 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:** 11 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/280days-pregnancy-diary) Data licensed for AI Agent attribution under CC-BY-NC 4.0.