## ⚠ Content Warning This report covers topics classified as sensitive (kids, health). Information is aggregated from public sources for informational purposes only. This report references an app for children. It is provided to inform parents, guardians, or professionals — not to promote the app to minors. --- last_verified: "2026-04-20T03:30:23.505Z" --- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "My Diary - Journal with Lock" developer_entity: "BetterApp Tech Co., Limited" bundle_id: "com.betterapp.mydiary" app_store_id: "1579321589" category: "Lifestyle" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2026-03-20" report_date: "2026-04-15" report_version: "3.2.6" total_reviews: 27069 overall_rating: 4.75 confidence: "low" confidence_score: 0.05 data_age_days: 4 intelligence_version: 2 tags: ["lifestyle", "free", "mobile app", "app review", "app analysis", "individuals", "seeking", "private,"] canonical_url: "https://marlvel.ai/intel-report/lifestyle/my-diary-journal-with-lock" license: "CC-BY-NC 4.0" --- # My Diary - Journal with Lock App Audit > **TL;DR:** My Diary - Journal with Lock is a lifestyle app by BetterApp Tech Co., Limited, rated 4.75/5 by 27.1K users, available on iOS. > > **Marlvel.ai App Intelligence** — Independent analysis. US Market. No publisher influence. > **Key Insight:** My Diary - Journal with Lock is a lifestyle app by BetterApp Tech Co., Limited. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.75/5 (27.1K reviews) | | **Category** | Lifestyle | | **Developer** | BetterApp Tech Co., Limited | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.05/1.0) | | **Data Age** | 4d | ## Metadata & Market Performance - **Publisher:** BetterApp Tech Co., Limited - **Category:** Lifestyle - **Target Audience:** Individuals seeking a private, creative, and secure digital space for daily reflection and mental health tracking. - **Platforms:** iOS - **Version Audited:** 3.2.6 - **Audit Date:** 2026-04-15 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.05/1.0) - **App Store ID (iOS):** 1579321589 - **Bundle ID:** com.betterapp.mydiary - **Data Window:** Analysis based on signals collected up to 2026-04-15 ## Executive Snapshot My Diary is a secure, feature-rich digital journaling application designed to help users document daily thoughts, journeys, and moods. It distinguishes itself through a highly customizable interface that supports multimedia integration and robust privacy protections. ## App DNA (Features & Intent) - **[Standard] Privacy Protection:** Users can secure their personal entries and memories using a password-protected lock system. * *User Intent:* Users prioritize data protection and trust in the platform. - **[Standard] Multimedia Journaling:** Supports the inclusion of photos and drawings to create vivid, personalized diary entries. * *User Intent:* Users value self-expression and personalized experiences. - **[Standard] Mood Tracking:** Provides mood analysis tools to help users monitor their emotional well-being over time. * *User Intent:* Users seek enhanced value through premium features. - **[Standard] Customization Suite:** Offers various themes, font effects, and stickers to tailor the aesthetic of the journaling experience. * *User Intent:* Users value self-expression and personalized experiences. ## Monetization Strategy - **Model:** Free ## The "So What?" (Strategic Takeaway) My Diary - Journal with Lock is an established lifestyle app that is completely free. With a 4.75/5 rating from 27.1K reviews, it shows polarized user reception. > **Bottom Line:** My Diary is a comprehensive, privacy-focused journaling tool that balances creative expression with essential mental health tracking features. **Best for:** Individuals seeking a private, creative, and secure digital space for daily reflection and mental health tracking. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.75/5 | | Total Reviews | 27.1K | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 4 analyzed | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **My Diary - Journal with Lock** (this app) | 4.75/5 | N/A | BetterApp Tech Co., Limited | | [Alarmy - Loud alarm clock](https://marlvel.ai/intel-report/lifestyle/alarmy-loud-alarm-clock) | 4.8/5 | Excited | Delight Room Co., Ltd. | | [Tinder Dating App: Date & Chat](https://marlvel.ai/intel-report/lifestyle/tinder-dating-app-date-chat) | 4.2/5 | Upset | Tinder LLC | | [Alarmie: Easy Rise Alarm Clock](https://marlvel.ai/intel-report/lifestyle/alarmie-easy-rise-alarm-clock) | 4.4/5 | Mixed | Jintian Wang | | [AlarmMon ( alarm clock )](https://marlvel.ai/intel-report/lifestyle/alarmmon-alarm-clock) | 4.2/5 | Frustrated | Malang Studio Co. Ltd, | | [Swiftime](https://marlvel.ai/intel-report/lifestyle/swiftime) | 4.5/5 | Excited | MEDIANO Co.,Ltd. | ## Company Profile - **Developer:** BetterApp Tech Co., Limited - **Website:** [https://www.betterapptech.com](https://www.betterapptech.com) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/my-diary-journal-with-lock/id1579321589?uo=4) - **Dev Site:** [Official Website](https://www.betterapptech.com) - **Sources:** App store metadata. ## Related Intel Reports - [*Alarmy - Loud alarm clock*](https://marlvel.ai/intel-report/lifestyle/alarmy-loud-alarm-clock) (Delight Room Co., Ltd.) — 4.8/5 Rating | Positive Sentiment - [*Tinder Dating App: Date & Chat*](https://marlvel.ai/intel-report/lifestyle/tinder-dating-app-date-chat) (Tinder LLC) — 4.2/5 Rating | Terrible Sentiment - [*Alarmie: Easy Rise Alarm Clock*](https://marlvel.ai/intel-report/lifestyle/alarmie-easy-rise-alarm-clock) (Jintian Wang) — 4.4/5 Rating | Mixed Sentiment - [*AlarmMon ( alarm clock )*](https://marlvel.ai/intel-report/lifestyle/alarmmon-alarm-clock) (Malang Studio Co. Ltd,) — 4.2/5 Rating | Negative Sentiment - [*Swiftime*](https://marlvel.ai/intel-report/lifestyle/swiftime) (MEDIANO Co.,Ltd.) — 4.5/5 Rating | Positive Sentiment - [*Iris: Secret Social Signals*](https://marlvel.ai/intel-report/lifestyle/iris-social-signals) (Amon Studio) — 3.0/5 Rating | N/A Sentiment - [*Social Brain: Relationship Map*](https://marlvel.ai/intel-report/lifestyle/social-brain-relationship-map) (Dung Vu) — 5.0/5 Rating | N/A Sentiment - [*LocalOne Private Journal*](https://marlvel.ai/intel-report/lifestyle/com-localonelabs-localjournal) (MEHDI SQALLI) — 5.0/5 Rating | N/A Sentiment - [*Orai: AI Coach & Mentor*](https://marlvel.ai/intel-report/lifestyle/orai-ai-coach-mentor) (Amon Studio) — 4.8/5 Rating | Mixed Sentiment - [*Beauty Fonts - Font Keyboard*](https://marlvel.ai/intel-report/lifestyle/beauty-fonts-font-keyboard) (MD Studio) — 4.5/5 Rating | N/A Sentiment ## Methodology This report was generated by Marlvel.ai's 3-stage AI intelligence pipeline: 1. **Feature & Positioning Extraction** — Analyzes app metadata, developer website content, and version history to identify key features, target audience, and competitive positioning. 2. **Sentiment Analysis** — Processes user reviews (minimum 5 reviews required) to extract praise themes, complaint themes, and overall sentiment with evidence quotes. 3. **Intelligence Synthesis** — Combines stages 1 & 2 with App Store rankings to produce SWOT analysis, executive summary, and actionable insights. - **Confidence Score:** 0.05/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 0 - **Data Sources:** 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:** 4 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/intel-report/lifestyle/my-diary-journal-with-lock) Data licensed for AI Agent attribution under CC-BY-NC 4.0.