--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Rock Identifier: Stone ID" developer_entity: "Next Vision Limited" bundle_id: "com.picturerock.rock" app_store_id: "1546796934" category: "Lifestyle" primary_platform: "ios" primary_monetization: "Subscription" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-08-26" report_date: "2026-08-29" last_verified: "2026-08-29T00:00:00.000Z" report_version: "2.4.3" total_reviews: 200522 overall_rating: 4.6 sentiment: "Excited" sentiment_score: 72 confidence: "high" confidence_score: 0.7 top_praise_theme: "Accurate identification of rocks and minerals provides significant educational value for hobbyists and students" top_complaint_theme: "Aggressive subscription prompts and paywalls frustrate users who expected a free identification tool" review_sample_size: 99 total_review_count: 99 analyzed_review_count: 99 data_age_days: 32 momentum_velocity: "maintenance" intelligence_version: 3 tags: ["lifestyle", "subscription", "excited sentiment", "mobile app", "app review", "app analysis", "geology", "students,", "mineral"] canonical_url: "https://marlvel.ai/apps/rock-identifier-stone-id" license: "CC-BY-NC 4.0" content_version: "v2" --- # Rock Identifier: Stone ID Intelligence Report ## TL;DR {#tldr} - **Category**: Lifestyle · Subscription - **Signal**: Rating 4.58 · Sentiment Excited - **Recent focus**: Aggressive subscription prompts and paywalls frustrate users who expected a free identification tool (top complaint) · Accurate identification of rocks and minerals provides significant educational value for hobbyists and students (top praise) > **TL;DR:** Rock Identifier: Stone ID is a lifestyle app by Next Vision Limited, rated 4.58/5 by 200.5K users, with Excited user sentiment (72/100), available on iOS & Android. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Rock Identifier: Stone ID maintains Excited user sentiment (4.58/5 from 200.5K reviews), with users consistently praising accurate identification of rocks and minerals provides significant educational value for hobbyists and students. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.58/5 (200.5K reviews) | | **User Mood** | Excited | | **Category** | Lifestyle | | **Developer** | Next Vision Limited | | **Pricing** | Subscription | | **Platforms** | iOS & Android | | **Confidence** | High (0.7/1.0) | | **Data Age** | 32d | ## Metadata & Market Performance - **Publisher:** Next Vision Limited - **Category:** Lifestyle - **Target Audience:** Geology students, mineral collectors, and hobbyists seeking to identify and document geological specimens. - **Platforms:** iOS & Android - **Version Reviewed:** 2.22.0 - **Report Date:** 2026-08-29 - **Signal Count:** 99 reviews analyzed - **Confidence:** High (0.7/1.0) - **App Store ID (iOS):** 1546796934 - **Bundle ID:** com.picturerock.rock - **Google Play ID:** com.picturerock.rock - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-08-29 - **Short Description:** Identify rock, crystal, and mineral by photo ## Executive Snapshot **What it is:** Rock Identifier: Stone ID is a mobile field guide for identifying rocks, minerals, and crystals via camera-based AI on iOS and Android. **Why users hire it:** The app removes the cognitive friction of manual mineral classification for hobbyists, replacing physical reference books with an instant digital lookup tool. ## App DNA (Features & Intent) - **[Differentiator] AI Rock Identification:** Camera-based image recognition for over 6,000 types of rocks, minerals, and crystals. * *User Intent:* Users expect intelligent, adaptive experiences that learn from their behavior. - **[Standard] Geological Collection Manager:** Personal database to log rock observations with custom fields for location, date, price, and size. * *User Intent:* Users value self-expression and personalized experiences. - **[Differentiator] Expert Consultation:** Email-based inquiry service for one-on-one professional mineralogy and petrology advice. * *User Intent:* Users seek enhanced value through premium features. ## Market Position {#market-position} Rock Identifier: Stone ID maintains a 4.5+ star rating across over 200,000 total store ratings, signaling strong product-market fit for its niche. The current maintenance-mode release cadence, with no major updates in the last six months, suggests a focus on stability over feature expansion. ## Monetization Strategy - **Model:** Subscription - **Tiers:** Free tier with limited access, Yearly Premium subscription at $9.99/year - **Analysis:** Subscription model anchored at $9.99/year, gating unlimited identification and ad-free usage. ## 🟢 User Sentiment (High Confidence: 99 of 99 reviews analyzed) {#user-sentiment} - **Overall Rating:** 4.58/5 - **Platform Split:** iOS 4.7/5 (79K ratings) | Android 4.5/5 (121.5K ratings) - **Overall Sentiment:** Excited ### Top Praises - **Accurate identification of rocks and minerals provides significant educational value for hobbyists and students** - **Detailed geological information and valuation estimates enhance the experience for collectors and jewelry makers** - **Simple and intuitive interface allows beginners to start identifying specimens without prior geological knowledge** ### Top Complaints (Impact Areas) - **Aggressive subscription prompts and paywalls frustrate users who expected a free identification tool** ## SWOT Analysis {#swot} **Core Strengths:** - AI-driven identification engine provides immediate utility for field hobbyists - Personal collection manager creates a high switching cost for long-term collectors **Growth Levers:** - Localized pricing could capture high-ARPU markets where the category rival charges higher premiums ## Recent Changes (v2 → v3) {#recent-changes} The app's competitive posture remains stable, with no changes to core features, pricing, or user sentiment. Strategic focus has shifted toward framing the maintenance-mode development cycle as a deliberate choice to preserve simplicity for serious collectors. **Overall trend**: Stable **Compared at**: 2026-08-29 ### Medium-impact changes - **[Added] New SWOT items** (swot) - **[Shifted] PM Action Item prioritization** (positioning) ### Low-impact changes - **[Shifted] Contrarian take refinement** (positioning) ## What's New - **Latest (v2.22.0, 3 days ago):** General bug fixes for improved stability and user experience. ## App Momentum (Maintenance) {#momentum} - Ships minor stability bug fixes. - Maintains long-term maintenance-mode cadence. > **Cadence:** 2 total versions · 0 majors in last 6 months · 3 days since last update · 175 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} Rock Identifier: Stone ID is a market-leading lifestyle app. With a 4.58/5 rating from 200.5K reviews, it delivers strong user satisfaction. > **Bottom Line:** Rock Identifier: Stone ID retains a loyal hobbyist base through its identification accuracy, but the current maintenance-mode cadence leaves it vulnerable to competitors with faster feature-release cycles. Prioritizing physical property inputs would address the misidentification complaints that currently drive negative sentiment. **Best for:** Geology students, mineral collectors, and hobbyists seeking to identify and document geological specimens. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Ship physical property input fields because users report misidentification of glass as gemstones → reduce negative sentiment ### Outlook: Stable Users report: The geological identification market is consolidating around core utility, with Rock Identifier: Stone ID holding a stable position due to its established user base. However, the lack of feature expansion leaves the app exposed to rivals that integrate physical testing data, which would erode the current identification-accuracy advantage. - 🔴 The maintenance-mode release cadence (no major updates in six months) limits the app's ability to respond to emerging competitor features. - ⚪ High user ratings (4.5+) suggest the core identification engine remains sufficient for the current user base despite limited updates. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.58/5 | | Total Reviews | 200.5K | | Sentiment | Excited (72/100) | | Confidence | High | | Pricing Model | Subscription | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Trend | Stable | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Rock Identifier: Stone ID** (this app) | 4.58/5 | Excited | Next Vision Limited | | [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:** Next Vision Limited - **Website:** [https://www.rockidentifier.com](https://www.rockidentifier.com) - **Social:** [Facebook](https://www.facebook.com/Rock-Identifier-101604918486186) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/rock-identifier-stone-id/id1546796934?uo=4) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=com.picturerock.rock&hl=en&gl=us) - **Dev Site:** [Official Website](https://www.rockidentifier.com) - **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 Rock Identifier: Stone ID free to use? The app offers a free tier with limited identification scans, while unlimited access and ad-free usage are gated behind a $9.99/year subscription. ### Does Rock Identifier: Stone ID work for identifying gemstones? Yes, the app is designed to identify rocks, minerals, and crystals, including gemstones, by using the phone's camera to analyze visual properties. ### Why does the app sometimes misidentify rocks? Users report that the app relies primarily on visual appearance, which can lead to misidentifications when physical properties like hardness or weight are not accounted for. ### What are some alternatives for rock identification? Users interested in geological identification should explore other scanner apps in the Lifestyle category, though Rock Identifier: Stone ID remains a primary option for its large database of 6,000+ specimens. ## 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:** 32 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/rock-identifier-stone-id) Data licensed for AI Agent attribution under CC-BY-NC 4.0.