--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Skinlog | Acne diary" developer_entity: "ARTLab" bundle_id: "ai.artlab.candy" app_store_id: "1527961587" category: "Lifestyle" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-08-04" report_date: "2026-09-02" last_verified: "2026-09-02T00:00:00.000Z" report_version: "2.6.0" total_reviews: 691 overall_rating: 4.4 sentiment: "Mixed" sentiment_score: 45 confidence: "high" confidence_score: 0.7 top_praise_theme: "Interactive skin tracking features provide users with actionable data to monitor their acne progress" top_complaint_theme: "Authentication failures prevent users from accessing their accounts and saved skin data post-update" review_sample_size: 71 total_review_count: 71 analyzed_review_count: 61 data_age_days: 3 momentum_velocity: "maintenance" intelligence_version: 3 tags: ["lifestyle", "free", "mixed sentiment", "mobile app", "app review", "app analysis", "individuals", "managing", "acne-prone"] canonical_url: "https://marlvel.ai/apps/skinlog-acne-diary" license: "CC-BY-NC 4.0" content_version: "v2" --- # Skinlog | Acne diary Intelligence Report ## TL;DR {#tldr} - **Category**: Lifestyle · Free - **Signal**: Rating 4.41 · Sentiment Mixed - **Recent focus**: Authentication failures prevent users from accessing their accounts and saved skin data post-update (top complaint) · Interactive skin tracking features provide users with actionable data to monitor their acne progress (top praise) > **TL;DR:** Skinlog | Acne diary is a lifestyle app by ARTLab, rated 4.41/5 by 691 users, with Mixed user sentiment (45/100), available on iOS & Android. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Skinlog | Acne diary shows Mixed sentiment (4.41/5 from 691 reviews) - users praise interactive skin tracking features provide users with actionable data to monitor their acne progress but report issues with authentication failures prevent users from accessing their accounts and saved skin data post-update. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.41/5 (691 reviews) | | **User Mood** | Mixed | | **Category** | Lifestyle | | **Developer** | ARTLab | | **Pricing** | Free | | **Platforms** | iOS & Android | | **Confidence** | High (0.7/1.0) | | **Data Age** | 3d | ## Metadata & Market Performance - **Publisher:** ARTLab - **Category:** Lifestyle - **Target Audience:** Individuals managing acne-prone skin who require tracking tools and routine guidance. - **Platforms:** iOS & Android - **Version Reviewed:** 2.6.0 - **Report Date:** 2026-09-02 - **Signal Count:** 71 reviews analyzed - **Confidence:** High (0.7/1.0) - **App Store ID (iOS):** 1527961587 - **Bundle ID:** ai.artlab.candy - **Google Play ID:** ai.artlab.candy - **Performance Trend:** Declining - **Data Window:** Analysis based on signals collected up to 2026-09-02 ## Executive Snapshot **What it is:** Skinlog is a lifestyle diary app for tracking acne-prone skin conditions, dietary habits, and skincare routines on iOS and Android. **Why users hire it:** Users track skin changes to identify triggers and optimize routines, but the service is now sunsetting. ## App DNA (Features & Intent) - **[Differentiator] AI Skincare Coaching:** Personalized routine recommendations based on skin changes and habits. * *User Intent:* Users value self-expression and personalized experiences. - **[Standard] Acne Concern Q&A:** Community and AI-driven forum for skin concerns. * *User Intent:* Users expect intelligent, adaptive experiences that learn from their behavior. - **[Standard] Photo Backup:** Export functionality to save skin progress photos to device libraries. * *User Intent:* Users seek enhanced value through premium features. ## Market Position {#market-position} Skinlog operates as a free, non-monetized utility in the Lifestyle category. The service closure notice in the latest release confirms the product is exiting the market, leaving a gap for specialized acne-tracking tools. ## Monetization Strategy - **Model:** Free - **Tiers:** Free application with no IAP or ad-supported tiers - **Analysis:** The app operates as a free tool with no visible monetization, currently in a service-closure phase. ## 🟡 User Sentiment (High Confidence: 61 of 71 reviews analyzed) {#user-sentiment} - **Overall Rating:** 4.41/5 - **Platform Split:** iOS 4.4/5 (92 ratings) | Android 4.4/5 (599 ratings) - **Overall Sentiment:** Mixed ### Top Praises - **Interactive skin tracking features provide users with actionable data to monitor their acne progress** - **Community features allow users to discuss skincare issues with others in a supportive environment** - **Accessible design ensures that core tracking features remain available without aggressive paywall restrictions** ### Top Complaints (Impact Areas) - **Authentication failures prevent users from accessing their accounts and saved skin data post-update** ## SWOT Analysis {#swot} **Core Strengths:** - Community forum creates social network effects **Growth Levers:** - Underserved market for AI-integrated acne tracking ## Recent Changes (v2 → v3) {#recent-changes} The product has moved from a maintenance phase to a formal sunset, with the developer website confirming the permanent service closure scheduled for September 10, 2026. **Overall trend**: Declining **Compared at**: 2026-09-02 ### High-impact changes - **[Shifted] Formal Sunset Confirmation** (positioning) ### Medium-impact changes - **[Shifted] SWOT Analysis Realignment** (swot) ## What's New - **Latest (v2.6.0, 1 months ago):** Added a photo backup feature to device libraries ahead of the service closure on September 10, 2026. ## App Momentum (Maintenance) {#momentum} - Shipped final backup utility. - Service closure scheduled September 2026. > **Cadence:** 1 total versions · 1 majors in last 6 months · 30 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Skinlog | Acne diary is a lifestyle app that is completely free. With a 4.41/5 rating from 691 reviews, it shows mixed user reception. > **Bottom Line:** Skinlog's service closure validates that a free, non-monetized utility lacks the resources to maintain core authentication and data-sync stability, forcing a transition to a backup utility that ends the product's value proposition. **Best for:** Individuals managing acne-prone skin who require tracking tools and routine guidance. ### PM Action Plan (Next Best Moves) - [ ] [SUNSET] Sunset the service after the September 10, 2026, deadline because the product is no longer commercially viable → minimize support costs ### Outlook: Declining The acne-tracking market remains fragmented, but Skinlog's exit highlights the difficulty of sustaining health-tech utilities without a clear monetization model. The immediate so-what for the category is that users will migrate to platforms with more robust data-sync infrastructure and long-term viability. - 🔴 The service closure notice in the latest release confirms the product is exiting the market, ending all future development and support. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.41/5 | | Total Reviews | 691 | | Sentiment | Mixed (45/100) | | Confidence | High | | Pricing Model | Free | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Trend | Declining | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Skinlog | Acne diary** (this app) | 4.41/5 | Mixed | ARTLab | | [Alarmy - Loud alarm clock](https://marlvel.ai/apps/alarmy-loud-alarm-clock) | 4.8/5 | Excited | Delight Room Co., Ltd. | | [Journey - Diary, Journal](https://marlvel.ai/apps/com-journey-ios-app) | 4.6/5 | Excited | Two App Studio Pte. Ltd. | | [Tinder Dating App: Date & Chat](https://marlvel.ai/apps/tinder-dating-app-date-chat) | 4.0/5 | n/a | Tinder LLC | | [Alarmie: Easy Rise Alarm Clock](https://marlvel.ai/apps/alarmie-easy-rise-alarm-clock) | 4.4/5 | Mixed | Jintian Wang | | [AlarmMon ( alarm clock )](https://marlvel.ai/apps/alarmmon-alarm-clock) | 4.3/5 | n/a | Malang Studio Co. Ltd, | ## Company Profile - **Developer:** ARTLab - **Website:** [https://skinlog.ai/](https://skinlog.ai/) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/skinlog-acne-diary/id1527961587?uo=4) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=ai.artlab.candy&hl=en&gl=us) - **Dev Site:** [Official Website](https://skinlog.ai/) - **Sources:** Developer website content, App store metadata, User reviews. ## Related Intel Reports - [*Alarmy - Loud alarm clock*](https://marlvel.ai/apps/alarmy-loud-alarm-clock) (Delight Room Co., Ltd.) · 4.8/5 Rating | Positive Sentiment - [*Journey - Diary, Journal*](https://marlvel.ai/apps/com-journey-ios-app) (Two App Studio Pte. Ltd.) · 4.6/5 Rating | Positive Sentiment - [*Tinder Dating App: Date & Chat*](https://marlvel.ai/apps/tinder-dating-app-date-chat) (Tinder LLC) · 4.0/5 Rating - [*Alarmie: Easy Rise Alarm Clock*](https://marlvel.ai/apps/alarmie-easy-rise-alarm-clock) (Jintian Wang) · 4.4/5 Rating - [*AlarmMon ( alarm clock )*](https://marlvel.ai/apps/alarmmon-alarm-clock) (Malang Studio Co. Ltd,) · 4.3/5 Rating - [*Amora: A Hint of Your Soulmate*](https://marlvel.ai/apps/amora-a-hint-of-your-soulmate) (Lit Apps LLC (Mobile)) · 4.7/5 Rating - [*Swiftime*](https://marlvel.ai/apps/swiftime) (MEDIANO Co.,Ltd.) · 4.5/5 Rating | Positive Sentiment - [*마주*](https://marlvel.ai/apps/an-offline-network-where-you-meet-through-qr-codes) (lvher) · N/A Rating - [*모앗*](https://marlvel.ai/apps/moat-moatapp) (JUNSEOK LEE) · N/A Rating - [*야기*](https://marlvel.ai/apps/tistory-88yhtserof-yagi) (Yunhwi Lim) · N/A Rating ## Frequently Asked Questions {#faq} ### Is Skinlog still active? No, Skinlog is currently in a service-closure phase. The latest update provides a tool to back up your skin progress photos to your device library before the service shuts down on September 10, 2026. ### Does Skinlog have a paid subscription? No, Skinlog operates as a free application with no in-app purchases or ad-supported tiers. ### What happens to my skin data? Users should use the photo backup feature in the latest version to export their progress photos to their device library, as all stored data will become inaccessible after the September 10, 2026, service closure. ## 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:** 71 - **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:** 3 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/skinlog-acne-diary) Data licensed for AI Agent attribution under CC-BY-NC 4.0.