--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "endplanner: A mortal's diary" developer_entity: "Saturn Studio" bundle_id: "com.saturnstudio.endplanner" app_store_id: "6448934431" category: "Lifestyle" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2023-07-07" report_date: "2026-07-04" last_verified: "2026-07-04T22:18:13.312Z" report_version: "0.1" total_reviews: 3 overall_rating: 2.3 sentiment: "Upset" sentiment_score: 10 confidence: "low" confidence_score: 0.25 top_complaint_theme: "Critical input failure during the initial setup process prevents users from proceeding past the welcome screen" review_sample_size: 1 total_review_count: 1 analyzed_review_count: 1 data_age_days: 9 momentum_velocity: "zombie" intelligence_version: 3 nemesis: "5 Minute Journal・Daily Diary" competitor_count: 11 tags: ["lifestyle", "free", "upset sentiment", "mobile app", "app review", "app analysis", "individuals", "seeking", "structured"] canonical_url: "https://marlvel.ai/apps/endplanner-a-mortal-s-diary" license: "CC-BY-NC 4.0" content_version: "v2" --- # endplanner: A mortal's diary App Audit ## TL;DR {#tldr} - **Category**: Lifestyle · Free - **Signal**: Rating 2.33 · Sentiment Upset - **Recent focus**: Critical input failure during the initial setup process prevents users from proceeding past the welcome screen (top complaint) > **TL;DR:** endplanner: A mortal's diary is a lifestyle app by Saturn Studio, rated 2.33/5 by 3 users, with Upset user sentiment (10/100), available on iOS & Android. > > **Marlvel.ai App Intelligence** — Independent analysis. US Market. No publisher influence. > **Key Insight:** endplanner: A mortal's diary faces Upset user sentiment (2.33/5 from 3 reviews), with critical input failure during the initial setup process prevents users from proceeding past the welcome screen as the primary user concern. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 2.33/5 (3 reviews) | | **User Mood** | Upset | | **Category** | Lifestyle | | **Developer** | Saturn Studio | | **Pricing** | Free | | **Platforms** | iOS & Android | | **Confidence** | Low (0.25/1.0) | | **Data Age** | 9d | ## Metadata & Market Performance - **Publisher:** Saturn Studio - **Category:** Lifestyle - **Target Audience:** Individuals seeking a structured method for existential reflection and personal mindfulness. - **Platforms:** iOS & Android - **Version Audited:** 0.1 - **Audit Date:** 2026-07-04 - **Signal Count:** 1 reviews analyzed - **Confidence:** Low (0.25/1.0) - **App Store ID (iOS):** 6448934431 - **Bundle ID:** com.saturnstudio.endplanner - **Google Play ID:** com.saturnstudio.endplanner - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-07-04 ## Executive Snapshot **What it is:** endplanner is a lifestyle diary app for iOS and Android that uses existential reflection prompts to help users contemplate mortality. **Why users hire it:** Users hire endplanner for a non-traditional, chilling method of mindfulness that differentiates from standard gratitude-focused journaling apps. ## App DNA (Features & Intent) - **[Differentiator] Existential Reflection Prompts:** Periodic reminders to contemplate the finite nature of life and personal values. * *User Intent:* Users want timely prompts to stay engaged without missing updates. - **[Standard] Diary Entry Logging:** Text-based input for recording personal thoughts and reflections. ## Market Position {#market-position} endplanner holds a 2.33-star rating across 3 total ratings, placing it well below the standard for lifestyle apps. The lack of a functional onboarding flow prevents the app from establishing a competitive position against category leaders. ## Monetization Strategy - **Model:** Free - **Tiers:** Free access to all features - **Analysis:** The app is currently free to use with no observable in-app purchases or subscription gates. ## 🔴 User Sentiment (Low Confidence: 1 of 1 reviews analyzed) {#user-sentiment} - **Overall Rating:** 2.33/5 - **Platform Split:** iOS 2.3/5 (3 ratings) - **Overall Sentiment:** Upset ### Top Complaints (Impact Areas) - **Critical input failure during the initial setup process prevents users from proceeding past the welcome screen** ## SWOT Analysis {#swot} **Core Strengths:** - Existential-dread-based philosophical approach differentiates the app from generic gratitude-focused competitors **Critical Frictions:** - Blocking input bug in the initial setup process prevents user onboarding - 2.33-star rating signals poor technical quality **Growth Levers:** - Untapped market segment for users seeking non-traditional, provocative self-reflection methods **Market Threats:** - Established competitors like 5 Minute Journal leverage massive user bases and social proof to maintain category dominance ## Rivals Landscape {#rivals} > Competitive positioning identified by AI analysis of app features, category, and market signals. ### endplanner: A mortal's diary vs 5 Minute Journal・Daily Diary — Head to Head - **5 Minute Journal・Daily Diary** by Intelligent Change LLC: This app dominates the daily reflection market by providing a structured, habit-forming framework that directly competes with endplanner's goal of cultivating a meaningful life. - **Key differences:** - Established brand authority in the mindfulness space creates significant barriers to entry for new competitors. - Proven habit-loop design encourages daily retention through structured, time-boxed prompts that minimize user friction. - Extensive cross-platform ecosystem and physical product integration drive higher user lifetime value than digital-only apps. - **Where endplanner: A mortal's diary wins:** - ✅ Offers a unique, existential-dread-based philosophical approach that differentiates it from generic gratitude-focused journaling apps. - ✅ Provides a more niche, provocative value proposition for users seeking deeper, non-traditional self-reflection methods. - **Where 5 Minute Journal・Daily Diary wins:** - ❌ Massive user base and social proof provide a sense of community and reliability that endplanner lacks. - ❌ Highly polished, professional UX design creates a frictionless experience that feels more trustworthy to mainstream users. - **Verdict:** Endplanner should lean into its 'chilling' existential branding to capture the counter-culture segment while improving core UX stability to reduce churn. ### Contenders (Strong Challengers) - **365 Gratitude Journal & Diary** by UofHappy, LLC: This app is a direct competitor in the mindfulness space, leveraging AI and community to facilitate daily journaling habits. - Features a robust AI coach that provides personalized feedback, far exceeding endplanner's current manual reflection tools. - Builds a strong community layer that allows users to share gratitude, creating a network-effect moat. - **Twig - Journal for Couples** by Trent Guillory: Twig captures the relational journaling market, competing for the same time and emotional energy as endplanner's individual reflection. - Designed specifically for collaborative journaling, shifting the focus from individual existential dread to shared experiences. - Provides a social-relational feedback loop that creates higher switching costs compared to endplanner's solitary diary. - **[MindBridge - Mind Q&A, Diary](https://marlvel.ai/apps/mindbridge-mind-q-a-diary)** by PREST: MindBridge competes by using interactive Q&A sets to drive engagement, mirroring the reflective intent of endplanner. - Integrates a pet growth system to gamify daily engagement, significantly boosting long-term user retention rates. - Utilizes structured question sets to guide user reflection, reducing the 'blank page' anxiety common in diaries. - **[4rabet](https://marlvel.ai/apps/com-designtip-funjournal)** by Jake Biele: Despite its sports-centric category, this app competes for the same 'ritual organization' and memory capture user base as endplanner. - Focuses on gamified ritual organization rather than the existential, reflective tone found in endplanner. - Provides a more structured categorization system for memories, appealing to users who prioritize data retrieval. ### Peers (What They Do Better) - **[My AI Journal](https://marlvel.ai/apps/my-ai-journal)** by Kento Umeki: This peer competes by automating the journaling process through AI, reducing the effort required for daily reflection. - Automates the creation of diary entries, significantly lowering the barrier to entry for inconsistent journalers. - Focuses on simple photo attachment workflows, making it easier for users to document life visually. - **[DrawMyToday - AI Picture Diary](https://marlvel.ai/apps/drawmytoday-ai-picture-diary)** by CHANHO LEE: This app competes by offering a visual, AI-driven alternative to text-based journaling, targeting the same lifestyle reflection market. - Uses generative AI to create visual representations of daily moods, appealing to non-text-heavy journaling users. - Integrates a calendar-based mood tracker that provides a quick, visual overview of emotional trends over time. - **[Ondo: AI Journal](https://marlvel.ai/apps/ondo-ai-journal)** by Onda Labs, Inc.: Ondo uses AI to transform the journaling experience into a conversational dialogue, directly challenging endplanner's static diary format. - Employs conversational AI to actively engage users, turning passive journaling into an interactive, therapeutic dialogue. - Generates AI-based postcards from journal entries, providing a visual, shareable output that endplanner currently lacks. - **[人生瞬间](https://marlvel.ai/apps/jinakeji-moment)** by Hangzhou Jina Information Technology Co., Ltd.: This app targets the same private, reflective journaling space but emphasizes a social-free, hidden management environment. - Prioritizes a strictly social-free environment, appealing to users who fear data exposure or social pressure. - Offers specialized hidden moment management, catering to users who require high-security, private reflection spaces. ### New Kids on the Block (What's Innovative) - **[Lore: Every Chat Hides a Story](https://marlvel.ai/apps/lore-every-chat-hides-a-story)** by Amon Studio: Lore disrupts the journaling space by repurposing existing chat data into narrative stories, competing for the user's reflective time. - Integrates directly with WhatsApp to extract narrative stories from existing chats, eliminating the need for manual entry. - **[おうち新聞](https://marlvel.ai/apps/karmait-ouchishinbun)** by Ide Koshin: This newcomer introduces a unique 'newspaper' format for family life, competing for the same daily documentation habits. - Automates the generation of a weekly family newspaper, transforming mundane diary entries into a shareable format. ## What's New - **Latest (v1.0.0, 2 years ago):** Initial launch of endplanner. ## App Momentum (Zombie) {#momentum} - Launched initial version in July 2023. - Critical setup bugs block user onboarding. > **Cadence:** 2 total versions · 0 majors in last 6 months · 1093 days since last update · 0 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} endplanner: A mortal's diary is a challenged lifestyle app that is completely free. With a 2.33/5 rating from 3 reviews, it faces significant user friction. > **Bottom Line:** endplanner offers a unique existential value proposition, but the blocking setup bug prevents any user retention, so the PM must prioritize technical stability over all other development to avoid total churn. **Best for:** Individuals seeking a structured method for existential reflection and personal mindfulness. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] [HIGH IMPACT] Fix the onboarding input bug because it is the #1 churn risk preventing any user from using the app → restore basic functionality. — *The application fails to register user input during the initial setup process.* _(trade-off: deprioritize Deprioritize all new feature development until the core setup flow is validated.)_ ### Feature Gaps vs Competitors - AI-driven feedback (available in 365 Gratitude Journal but absent here) - Collaborative journaling (available in Twig but absent here) ### Outlook: Declining The lifestyle journaling market is consolidating around AI-enhanced and habit-forming tools, leaving endplanner exposed due to its lack of functional core features. The current technical instability will likely lead to a total loss of the initial user cohort unless the onboarding flow is resolved immediately. - 🔴 Blocking input bugs during the initial setup process prevent user onboarding, which compounds the rating drag already visible on the store. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 2.33/5 | | Total Reviews | 3 | | Sentiment | Upset (10/100) | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS & Android | | Key Features | 2 analyzed | | Trend | Stable | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **endplanner: A mortal's diary** (this app) | 2.33/5 | Upset | Saturn Studio | | [4rabet](https://marlvel.ai/apps/com-designtip-funjournal) | 3.2/5 | N/A | Jake Biele | | [Lore: Every Chat Hides a Story](https://marlvel.ai/apps/lore-every-chat-hides-a-story) | N/A/5 | N/A | Amon Studio | | [DrawMyToday - AI Picture Diary](https://marlvel.ai/apps/drawmytoday-ai-picture-diary) | 4.3/5 | Upset | CHANHO LEE | | [My AI Journal](https://marlvel.ai/apps/my-ai-journal) | 5.0/5 | N/A | Kento Umeki | | [人生瞬间](https://marlvel.ai/apps/jinakeji-moment) | 4.8/5 | N/A | Hangzhou Jina Information Technology Co., Ltd. | ## Company Profile - **Developer:** Saturn Studio ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/endplanner-a-mortals-diary/id6448934431?uo=4) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=com.saturnstudio.endplanner&hl=en&gl=us) - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*4rabet*](https://marlvel.ai/apps/com-designtip-funjournal) (Jake Biele) — 3.2/5 Rating | N/A Sentiment - [*Lore: Every Chat Hides a Story*](https://marlvel.ai/apps/lore-every-chat-hides-a-story) (Amon Studio) — N/A Rating | N/A Sentiment - [*DrawMyToday - AI Picture Diary*](https://marlvel.ai/apps/drawmytoday-ai-picture-diary) (CHANHO LEE) — 4.3/5 Rating | Terrible Sentiment - [*My AI Journal*](https://marlvel.ai/apps/my-ai-journal) (Kento Umeki) — 5.0/5 Rating | N/A Sentiment - [*人生瞬间*](https://marlvel.ai/apps/jinakeji-moment) (Hangzhou Jina Information Technology Co., Ltd.) — 4.8/5 Rating | N/A Sentiment - [*おうち新聞*](https://marlvel.ai/apps/karmait-ouchishinbun) (Ide Koshin) — N/A Rating | N/A Sentiment - [*MindBridge - Mind Q&A, Diary*](https://marlvel.ai/apps/mindbridge-mind-q-a-diary) (PREST) — 4.9/5 Rating | Excellent Sentiment - [*Ondo: AI Journal*](https://marlvel.ai/apps/ondo-ai-journal) (Onda Labs, Inc.) — 5.0/5 Rating | Excellent Sentiment - [*Tinder Dating App: Date & Chat*](https://marlvel.ai/apps/tinder-dating-app-date-chat) (Tinder LLC) — 4.0/5 Rating | Terrible Sentiment - [*Alarmy - Loud alarm clock*](https://marlvel.ai/apps/alarmy-loud-alarm-clock) (Delight Room Co., Ltd.) — 4.8/5 Rating | Positive Sentiment ## 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 and evidence quoting. 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:** 0.25/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 1 - **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:** 9 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/endplanner-a-mortal-s-diary) Data licensed for AI Agent attribution under CC-BY-NC 4.0.