--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Stone Identifier - Gemstone ID" developer_entity: "Vadim Rudakov" bundle_id: "com.stonei.stonei" app_store_id: "6742487438" category: "Utilities" primary_platform: "ios" primary_monetization: "Subscription" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2025-02-26" report_date: "2026-09-28" last_verified: "2026-09-28T00:00:00.000Z" report_version: "1.0" total_reviews: 25 overall_rating: 4.7 sentiment: "Frustrated" sentiment_score: 25 confidence: "low" confidence_score: 0.3 top_praise_theme: "Identification features provide helpful information about stones for users interested in geological classification" top_complaint_theme: "Subscription pricing feels excessive because the app lacks flexible yearly or lifetime payment options" review_sample_size: 2 total_review_count: 2 analyzed_review_count: 2 data_age_days: 2 momentum_velocity: "zombie" intelligence_version: 2 tags: ["utilities", "subscription", "frustrated sentiment", "mobile app", "app review", "app analysis", "collectors,", "geology", "students,"] canonical_url: "https://marlvel.ai/apps/stone-identifier-gemstone-id" license: "CC-BY-NC 4.0" content_version: "v2" --- # Stone Identifier - Gemstone ID Intelligence Report ## TL;DR {#tldr} - **Category**: Utilities 路 Subscription - **Signal**: Rating 4.72 路 Sentiment Frustrated - **Recent focus**: Subscription pricing feels excessive because the app lacks flexible yearly or lifetime payment options (top complaint) 路 Identification features provide helpful information about stones for users interested in geological classification (top praise) > **TL;DR:** Stone Identifier - Gemstone ID is a utilities app by Vadim Rudakov, rated 4.72/5 by 25 users, with Frustrated user sentiment (25/100), available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Stone Identifier - Gemstone ID faces Frustrated user sentiment (4.72/5 from 25 reviews), with users reporting subscription pricing feels excessive because the app lacks flexible yearly or lifetime payment options as the primary concern. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.72/5 (25 reviews) | | **User Mood** | Frustrated | | **Category** | Utilities | | **Developer** | Vadim Rudakov | | **Pricing** | Subscription | | **Platforms** | iOS | | **Confidence** | Low (0.3/1.0) | | **Data Age** | 2d | ## Metadata & Market Performance - **Publisher:** Vadim Rudakov - **Category:** Utilities - **Target Audience:** Rock collectors, geology students, and nature enthusiasts. - **Platforms:** iOS - **Version Reviewed:** 1.0 - **Report Date:** 2026-09-28 - **Signal Count:** 2 reviews analyzed - **Confidence:** Low (0.3/1.0) - **App Store ID (iOS):** 6742487438 - **Bundle ID:** com.stonei.stonei - **Data Window:** Analysis based on signals collected up to 2026-09-28 ## Executive Snapshot **What it is:** Stone Identifier is an AI-powered mineral recognition tool for rock enthusiasts and students on iOS. **Why users hire it:** The app removes the manual effort of cross-referencing geological characteristics by providing instant identification from a photo. ## App DNA (Features & Intent) - **[Differentiator] AI-Powered Rock Recognition:** Image-based identification of stones and minerals using AI analysis. * *User Intent:* Users expect intelligent, adaptive experiences that learn from their behavior. - **[Standard] Detailed Geological Analysis:** Provides scientific names, composition, and origin data for identified specimens. * *User Intent:* Users seek enhanced value through premium features. - **[Standard] Scan History:** Local storage of identified stones for future reference. ## Market Position {#market-position} Stone Identifier occupies a niche utility segment, currently holding a 4.72 rating across 25 total ratings. The absence of updates since February 2025 indicates a lack of active market positioning against more frequently updated geological tools. ## Monetization Strategy - **Model:** Subscription - **Tiers:** Free tier with limited access, Premium subscription at $4.99 per week - **Analysis:** The $4.99 weekly subscription gates core identification features, which users report as excessive given the lack of flexible payment alternatives. ## 馃敶 User Sentiment (Low Confidence: 2 of 2 reviews analyzed) {#user-sentiment} - **Overall Rating:** 4.72/5 - **Platform Split:** iOS 4.7/5 (25 ratings) - **Overall Sentiment:** Frustrated - **Note:** The 4.72/5 store rating reflects cumulative history, while the Frustrated sentiment reflects recent user reviews analyzed by our AI pipeline. ### Top Praises - **Identification features provide helpful information about stones for users interested in geological classification** ### Top Complaints (Impact Areas) - **Subscription pricing feels excessive because the app lacks flexible yearly or lifetime payment options** ## SWOT Analysis {#swot} **Core Strengths:** - AI-driven image recognition provides instant geological classification **Growth Levers:** - Add one-time purchase or monthly tier to reduce conversion friction ## App Momentum (Zombie) {#momentum} - No feature updates since February 2025 - Development velocity remains in maintenance mode > **Cadence:** 1 total versions 路 0 majors in last 6 months 路 578 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Stone Identifier - Gemstone ID is an utilities app. It holds a 4.72/5 rating from 25 reviews. > **Bottom Line:** The current subscription-only model creates a barrier that suppresses retention, and the lack of updates since early 2025 suggests the product is in maintenance mode rather than active growth. **Best for:** Rock collectors, geology students, and nature enthusiasts. ### PM Action Plan (Next Best Moves) - [ ] [PIVOT] Introduce a monthly subscription tier because current weekly pricing is a top user complaint -> increase conversion rate ### Outlook: Declining The geological utility market is shifting toward freemium models with lower entry barriers, leaving Stone Identifier exposed. Without a shift in pricing or a resumption of development, the app will continue to lose relevance to more active competitors. - 馃敶 The 19-month update gap indicates the developer has shifted focus, which will likely lead to user churn as the AI model becomes outdated. - 馃敶 High-frequency complaints regarding the $4.99 weekly subscription model suggest the current monetization strategy is unsustainable for long-term user acquisition. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.72/5 | | Total Reviews | 25 | | Sentiment | Frustrated (25/100) | | Confidence | Low | | Pricing Model | Subscription | | Platforms | iOS | | Key Features | 3 analyzed | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Stone Identifier - Gemstone ID** (this app) | 4.72/5 | Frustrated | Vadim Rudakov | | [Sota Connect: Secure Network](https://marlvel.ai/apps/fi-catconnect-sota) | 4.8/5 | N/A | Cat Connect | | [V2Box - V2ray Client](https://marlvel.ai/apps/v2box-v2ray-client) | 4.6/5 | n/a | techlaim | | [App For Siri Commands Tips](https://marlvel.ai/apps/app-for-siri-commands-tips) | N/A/5 | N/A | Anh La Phan Son | | [avoVPN Desktop](https://marlvel.ai/apps/avovpn-desktop) | N/A/5 | N/A | Avocado VPN Technologies | | [Bin Days - Bin Reminder](https://marlvel.ai/apps/bin-days-bin-reminder) | N/A/5 | N/A | Vicki Partridge | ## Company Profile - **Developer:** Vadim Rudakov ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/stone-identifier-gemstone-id/id6742487438?uo=4) - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*Sota Connect: Secure Network*](https://marlvel.ai/apps/fi-catconnect-sota) (Cat Connect) 路 4.8/5 Rating - [*V2Box - V2ray Client*](https://marlvel.ai/apps/v2box-v2ray-client) (techlaim) 路 4.6/5 Rating - [*App For Siri Commands Tips*](https://marlvel.ai/apps/app-for-siri-commands-tips) (Anh La Phan Son) 路 N/A Rating - [*avoVPN Desktop*](https://marlvel.ai/apps/avovpn-desktop) (Avocado VPN Technologies) 路 N/A Rating - [*Bin Days - Bin Reminder*](https://marlvel.ai/apps/bin-days-bin-reminder) (Vicki Partridge) 路 N/A Rating - [*Controller Tester FGC*](https://marlvel.ai/apps/controller-tester-fgc) (Aaron Lowe) 路 5.0/5 Rating - [*Fusvob VPN : Super VPN 2026*](https://marlvel.ai/apps/com-toplinkc-foxexcellent) (Fuxin Technology) 路 4.5/5 Rating - [*Gear Ratio Calculator & RPM*](https://marlvel.ai/apps/cog-gear-ratio-calculator) (Linh Phan Nhat Khanh) 路 N/A Rating - [*NordVPN: VPN Fast & Secure*](https://marlvel.ai/apps/com-nordvpn-nordvpn) (Nordvpn S.A.) 路 4.7/5 Rating - [*Pick and Pull: Junkyard Finder*](https://marlvel.ai/apps/pick-and-pull-junkyard-finder) (Vladimir Kostadinov Stoyanov) 路 3.7/5 Rating ## Frequently Asked Questions {#faq} ### Is Stone Identifier free to use? The app offers a free tier with limited access, but core identification and geological analysis features are gated behind a $4.99 weekly subscription. ### Why is the subscription price considered high? Users report that the $4.99 weekly cost is excessive, particularly because the app lacks flexible yearly or lifetime payment options. ### How does Stone Identifier compare to other rock ID tools? While Stone Identifier provides functional AI identification, it is less competitive than rivals due to its rigid subscription model and lack of recent feature updates. ## 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:** 0.3/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 2 - **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:** 2 days since last refresh --- 漏 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/stone-identifier-gemstone-id) Data licensed for AI Agent attribution under CC-BY-NC 4.0.