--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Stone Identifier Rock Scanner" developer_entity: "Vu Xuan Loc" bundle_id: "com.loc.rock.id.identify" app_store_id: "6443580669" category: "Education" primary_platform: "ios" primary_monetization: "Subscription" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2023-08-16" report_date: "2026-08-24" last_verified: "2026-08-24T00:00:00.000Z" report_version: "1.1.5" total_reviews: 108 overall_rating: 3.6 sentiment: "Upset" sentiment_score: 15 confidence: "medium" confidence_score: 0.4 top_praise_theme: "The camera interface provides a functional way to capture and adjust photos for identification" top_complaint_theme: "Inaccurate identification results frequently misclassify common minerals and stones as incorrect geological specimens" review_sample_size: 24 total_review_count: 24 analyzed_review_count: 24 data_age_days: 43 momentum_velocity: "zombie" intelligence_version: 3 tags: ["education", "subscription", "upset sentiment", "mobile app", "app review", "app analysis", "geology", "enthusiasts", "hobbyists"] canonical_url: "https://marlvel.ai/apps/stone-identifier-rock-scanner" license: "CC-BY-NC 4.0" content_version: "v2" --- # Stone Identifier Rock Scanner Intelligence Report ## TL;DR {#tldr} - **Category**: Education · Subscription - **Signal**: Rating 3.57 · Sentiment Upset - **Recent focus**: Inaccurate identification results frequently misclassify common minerals and stones as incorrect geological specimens (top complaint) · The camera interface provides a functional way to capture and adjust photos for identification (top praise) > **TL;DR:** Stone Identifier Rock Scanner is a education app by Vu Xuan Loc, rated 3.57/5 by 108 users, with Upset user sentiment (15/100), available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Stone Identifier Rock Scanner faces Upset user sentiment (3.57/5 from 108 reviews), with users reporting inaccurate identification results frequently misclassify common minerals and stones as incorrect geological specimens as the primary concern. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 3.57/5 (108 reviews) | | **User Mood** | Upset | | **Category** | Education | | **Developer** | Vu Xuan Loc | | **Pricing** | Subscription | | **Platforms** | iOS | | **Confidence** | Medium (0.4/1.0) | | **Data Age** | 43d | ## Metadata & Market Performance - **Publisher:** Vu Xuan Loc - **Category:** Education - **Target Audience:** Geology enthusiasts and hobbyists interested in identifying and cataloging rocks, crystals, and gems. - **Platforms:** iOS - **Version Reviewed:** 1.1.5 - **Report Date:** 2026-08-24 - **Signal Count:** 24 reviews analyzed - **Confidence:** Medium (0.4/1.0) - **App Store ID (iOS):** 6443580669 - **Bundle ID:** com.loc.rock.id.identify - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-08-24 ## Executive Snapshot **What it is:** Stone Identifier Rock Scanner is an image-based mineral identification tool for geology hobbyists on iOS. **Why users hire it:** The app serves users who need quick geological classification, but it currently fails to provide accurate results, leading to high refund requests. ## App DNA (Features & Intent) - **[Standard] Image-based Identification:** Camera-based recognition of rocks, crystals, and gems using photo uploads. - **[Standard] Collection Management:** Saves identified specimens into a personal library within the user interface. ## Market Position {#market-position} Stone Identifier Rock Scanner holds a 3.57 rating across 108 total ratings. The lack of updates for over 1,100 days signals a dormant product lifecycle that prevents competitive parity in the education category. ## Monetization Strategy - **Model:** Subscription - **Tiers:** Free tier with single-scan limitation, Auto-renewing subscription - **Analysis:** The subscription model is perceived as aggressive, as it triggers immediately after a single scan, leading to high user frustration. ## 🔴 User Sentiment (Medium Confidence: 24 of 24 reviews analyzed) {#user-sentiment} - **Overall Rating:** 3.57/5 - **Platform Split:** iOS 3.6/5 (108 ratings) - **Overall Sentiment:** Upset ### Top Praises - **The camera interface provides a functional way to capture and adjust photos for identification** ### Top Complaints (Impact Areas) - **Inaccurate identification results frequently misclassify common minerals and stones as incorrect geological specimens** ## SWOT Analysis {#swot} **Core Strengths:** - Functional camera interface for capturing and adjusting images **Growth Levers:** - Implement free-tier previews to reduce immediate paywall friction ## Recent Changes (v2 → v3) {#recent-changes} The product remains in a dormant state with no functional changes. The analysis has shifted to more clearly define the risks posed by the three-year development gap and the direct correlation between paywall friction and refund requests. **Overall trend**: Stable **Compared at**: 2026-08-24 ### Medium-impact changes - **[Added] Update Gap Threat** (swot) - **[Added] Free-tier Opportunity** (swot) ### Low-impact changes - **[Shifted] Lifecycle Description** (positioning) ## What's New - **Latest (v1.1.5, 3 years ago):** General performance optimizations. ## App Momentum (Zombie) {#momentum} - Dormant development for 36 months. - No major release since August 2023. > **Cadence:** 1 total versions · 0 majors in last 6 months · 1103 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Stone Identifier Rock Scanner is an education app. With a 3.57/5 rating from 108 reviews, it faces significant user friction. > **Bottom Line:** Stone Identifier Rock Scanner fails to deliver accurate identification, and the immediate subscription gate creates a high refund surge. Addressing these technical and monetization failures is necessary to stabilize the user base. **Best for:** Geology enthusiasts and hobbyists interested in identifying and cataloging rocks, crystals, and gems. ### PM Action Plan (Next Best Moves) - [ ] [PIVOT] Audit subscription paywall trigger because users report being blocked after one scan → reduce refund surge ### Outlook: Declining The education category for mineral identification is shifting toward high-accuracy, AI-driven models that provide value before gating access. Stone Identifier Rock Scanner remains exposed due to its stagnant development and aggressive monetization, which will likely accelerate churn into the next quarter. - 🔴 The three-year update gap indicates a maintenance-only posture, which prevents the app from improving its identification accuracy against modern competitors. - 🔴 High refund requests due to inaccurate identification results erode trust, which compounds the negative sentiment already visible in the review landscape. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 3.57/5 | | Total Reviews | 108 | | Sentiment | Upset (15/100) | | Confidence | Medium | | Pricing Model | Subscription | | Platforms | iOS | | Key Features | 2 analyzed | | Trend | Stable | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Stone Identifier Rock Scanner** (this app) | 3.57/5 | Upset | Vu Xuan Loc | | [AlgoApp - Flashcards](https://marlvel.ai/apps/algoapp-flashcards) | 4.5/5 | n/a | AlgoApp Inc | | [Elevate - Brain Training Games](https://marlvel.ai/apps/elevate-brain-training-games) | 4.7/5 | n/a | The Mind Company | | [Flashcards Deluxe](https://marlvel.ai/apps/flashcards-deluxe) | 4.5/5 | N/A | OrangeOrApple.com | | [Flash Cards Flashcards Maker](https://marlvel.ai/apps/flash-cards-flashcards-maker) | 4.0/5 | Mixed | Infinite Wave Media, LLC | | [Flashcards maker - AI generate](https://marlvel.ai/apps/flashcards-maker-ai-generate) | 4.1/5 | Mixed | Teleprompter LLC | ## Company Profile - **Developer:** Vu Xuan Loc ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/stone-identifier-rock-scanner/id6443580669?uo=4) - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*AlgoApp - Flashcards*](https://marlvel.ai/apps/algoapp-flashcards) (AlgoApp Inc) · 4.5/5 Rating - [*Elevate - Brain Training Games*](https://marlvel.ai/apps/elevate-brain-training-games) (The Mind Company) · 4.7/5 Rating - [*Flashcards Deluxe*](https://marlvel.ai/apps/flashcards-deluxe) (OrangeOrApple.com) · 4.5/5 Rating - [*Flash Cards Flashcards Maker*](https://marlvel.ai/apps/flash-cards-flashcards-maker) (Infinite Wave Media, LLC) · 4.0/5 Rating - [*Flashcards maker - AI generate*](https://marlvel.ai/apps/flashcards-maker-ai-generate) (Teleprompter LLC) · 4.1/5 Rating - [*Impulse - Brain Training*](https://marlvel.ai/apps/impulse-brain-training) (GMRD Apps Limited) · 4.6/5 Rating - [*Peak - Brain Training*](https://marlvel.ai/apps/peak-brain-training) (Synaptic Labs) · 4.7/5 Rating - [*자주 틀리는 우리말*](https://marlvel.ai/apps/app--424) (DaolSoft, Co., Ltd.) · N/A Rating - [*달공부 - 한 달 공부 다이어리 + 루틴/공부 타이머*](https://marlvel.ai/apps/azlabs-dalstudy) (SuWon Choi) · N/A Rating - [*타요콘 - 타요 아바타 놀이동화*](https://marlvel.ai/apps/com-kigle-project-tayocon) (KIGLE) · 3.1/5 Rating ## Frequently Asked Questions {#faq} ### Is Stone Identifier Rock Scanner accurate for identifying rocks? Users report that the app frequently provides inaccurate identification results, often misclassifying common minerals and gems. ### Does Stone Identifier Rock Scanner have a free version? The app offers a limited free experience, but users report that it restricts access to a single scan before forcing a subscription purchase. ### What should I do if I cannot access premium features after paying? Users report technical failures where the app does not recognize active subscriptions. If you experience this, you should contact Apple support for a refund, as reviewers note the developer is unresponsive. ## 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:** 0.4/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 24 - **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:** 43 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/stone-identifier-rock-scanner) Data licensed for AI Agent attribution under CC-BY-NC 4.0.