--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Rockd" developer_entity: "University of Wisconsin-Madison Shared Apps" bundle_id: "org.macrostrat.rockd" app_store_id: "1153056624" category: "Education" primary_platform: "ios" primary_monetization: "Free" offline_capable: true market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-02-21" report_date: "2026-06-04" last_verified: "2026-06-04T06:06:17.869Z" report_version: "4.1.3" total_reviews: 692 overall_rating: 4.18 sentiment: "Mixed" sentiment_score: 55 confidence: "low" confidence_score: 0.7 top_praise_theme: "Extensive geological data and map resources provide significant value for field research and education" top_complaint_theme: "Frequent black screen crashes and infinite loading loops prevent consistent access to the application" top_request_theme: "Customizable unit and geologic period settings would improve utility for international users" review_sample_size: 99 total_review_count: 99 analyzed_review_count: 62 data_age_days: 28 momentum_velocity: "maintenance" intelligence_version: 4 competitor_count: 1 tags: ["education", "free", "mixed sentiment", "mobile app", "app review", "app analysis", "professional", "geoscientists", "amateur"] canonical_url: "https://marlvel.ai/apps/rockd" license: "CC-BY-NC 4.0" content_version: "v2" --- # Rockd App Audit ## TL;DR {#tldr} - **Category**: Education · Free - **Signal**: Rating 4.18 · Sentiment Mixed - **Recent focus**: Frequent black screen crashes and infinite loading loops prevent consistent access to the application (top complaint) · Extensive geological data and map resources provide significant value for field research and education (top praise) · Customizable unit and geologic period settings would improve utility for international users (top request) > **TL;DR:** Rockd is a education app by University of Wisconsin-Madison Shared Apps, rated 4.18/5 by 692 users, with Mixed user sentiment (55/100), available on iOS & Android. > > **Marlvel.ai App Intelligence** — Independent analysis. US Market. No publisher influence. > **Key Insight:** Rockd shows Mixed sentiment (4.18/5 from 692 reviews) — users praise extensive geological data and map resources provide significant value for field research and education but report issues with frequent black screen crashes and infinite loading loops prevent consistent access to the application. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.18/5 (692 reviews) | | **User Mood** | Mixed | | **Category** | Education | | **Developer** | University of Wisconsin-Madison Shared Apps | | **Pricing** | Free | | **Platforms** | iOS & Android | | **Confidence** | Low (0.7/1.0) | | **Data Age** | 28d | ## Metadata & Market Performance - **Publisher:** University of Wisconsin-Madison Shared Apps - **Category:** Education - **Target Audience:** Professional geoscientists and amateur enthusiasts interested in documenting and learning about geologic features in the field. - **Platforms:** iOS & Android - **Version Audited:** 4.1.3 - **Audit Date:** 2026-06-04 - **Signal Count:** 99 reviews analyzed - **Confidence:** Low (0.7/1.0) - **App Store ID (iOS):** 1153056624 - **Bundle ID:** org.macrostrat.rockd - **Google Play ID:** org.macrostrat.rockd - **Performance Trend:** Declining - **Data Window:** Analysis based on signals collected up to 2026-06-04 ## Executive Snapshot **What it is:** Rockd is a field-geology documentation and mapping tool for geoscientists and enthusiasts on iOS and Android. **Why users hire it:** Users hire Rockd to access stratigraphic data and log field observations in remote areas where cellular connectivity is unavailable. ## App DNA (Features & Intent) - **[Differentiator] Geologic Dashboard:** Provides instant geologic and geographic summaries of the user's current location via a dedicated interface. * *User Intent:* Users seek enhanced value through premium features. - **[Differentiator] Offline Map Caching:** Allows users to save map data for use in remote areas without cellular connectivity. * *User Intent:* Users want uninterrupted access without internet dependency. - **[Differentiator] Field Observation Logging:** Enables users to record geologic observations, tag features from Macrostrat and the Paleobiology Database, and log strike/dip or trend/plunge measurements. ## Market Position {#market-position} Rockd maintains a niche position in the education category with a 4.35 rating, but its lack of commercial monetization leaves it vulnerable to AI-first competitors. ## Monetization Strategy - **Model:** Free - **Tiers:** Free access to all features - **Analysis:** The app operates as a free, research-backed tool funded by the National Science Foundation and the University of Wisconsin-Madison. ## 🟡 User Sentiment (Low Confidence: 62 of 99 reviews analyzed) {#user-sentiment} - **Overall Rating:** 4.18/5 - **Platform Split:** iOS 4.4/5 (181 ratings) | Android 4.1/5 (511 ratings) - **Overall Sentiment:** Mixed ### Top Praises - **Extensive geological data and map resources provide significant value for field research and education** ### Top Complaints (Impact Areas) - **Frequent black screen crashes and infinite loading loops prevent consistent access to the application** ### Top Requests (What Users Want) - **Customizable unit and geologic period settings would improve utility for international users** ## SWOT Analysis {#swot} **Core Strengths:** - Deep integration with Macrostrat and Paleobiology databases creates a professional-grade field documentation moat. **Critical Frictions:** - Frequent launch-time black screen crashes erode trust among professional users relying on the tool for field work. **Growth Levers:** - Public land layer integration would assist users in identifying legal rockhounding locations, expanding utility for the amateur segment. **Market Threats:** - AI-powered identification tools from competitors like Rock & Mineral Identifier siphon the casual-interest user base. ## Recent Changes (v3 → v4) {#recent-changes} The app's competitive outlook has declined due to critical stability regressions, forcing a pivot from feature expansion to crash remediation. **Overall trend**: Declining **Compared at**: 2026-06-04 ### High-impact changes - **[Shifted] PM Action Plan Pivot** (positioning) — Action items moved from prioritizing AI-based identification to rebuilding the launch sequence to address black screen crashes. - **[Declined] Emergence of Critical Stability Complaints** (sentiment) — Sentiment analysis now identifies frequent black screen crashes and infinite loading loops as the primary user complaint. ### Medium-impact changes - **[Shifted] SWOT Analysis Update** (swot) — Weakness category updated to prioritize launch-time crashes over non-commercial funding limitations. - **[Shifted] Target Audience Expansion** (audience) — Audience scope broadened from professional geoscientists and students to include amateur enthusiasts. ## What's New - **Latest (v4.1.3, 2 months ago):** Resolved photo syncing issues during check-ins and general stability improvements. ## App Momentum (Maintenance) {#momentum} - Shipped bug fixes for photo syncing. - Maintained internal performance improvements. > **Cadence:** 2 total versions · 0 majors in last 6 months · 81 days since last update · 1 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} Rockd is an established education app that is completely free. With a 4.18/5 rating from 692 reviews, it shows polarized user reception. > **Bottom Line:** Rockd provides unmatched stratigraphic utility for field professionals, but persistent launch crashes threaten its core retention, so the team must prioritize stability over new feature expansion to prevent user churn. **Best for:** Professional geoscientists and amateur enthusiasts interested in documenting and learning about geologic features in the field. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] [HIGH IMPACT] Rebuild launch sequence because black screen crashes are the top-reported stability blocker → restore user trust — *Launch crashes are the #1 complaint theme in sentiment analysis.* _(trade-off: deprioritize Pause the public land layer integration project — stability is a prerequisite for retention.)_ ### Feature Gaps vs Competitors - AI-powered specimen identification (available in Rock & Mineral Identifier but absent here) ### Outlook: Declining The field-geology market is shifting toward AI-assisted identification, leaving Rockd's manual-logging focus exposed to faster-moving competitors. Unless the team resolves the current stability regressions, the app will lose its professional user base to more reliable, modern alternatives. - 🔴 Persistent launch crashes in the latest version erode the daily active habit, which compounds the rating drag already visible on Android. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.18/5 | | Total Reviews | 692 | | Sentiment | Mixed (55/100) | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Trend | Declining | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Rockd** (this app) | 4.18/5 | Mixed | University of Wisconsin-Madison Shared Apps | | [Rock & Mineral Identifier](https://marlvel.ai/apps/rock-mineral-identifier) | 5.0/5 | N/A | Munure Tuzun | | [Elevate - Brain Training Games](https://marlvel.ai/apps/elevate-brain-training-games) | 4.7/5 | Excited | The Mind Company | | [AlgoApp - Flashcards](https://marlvel.ai/apps/algoapp-flashcards) | 4.6/5 | Mixed | AlgoApp Inc | | [Flash Cards Flashcards Maker](https://marlvel.ai/apps/flash-cards-flashcards-maker) | 4.0/5 | Excited | 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:** University of Wisconsin-Madison Shared Apps - **Website:** [https://rockd.org/](https://rockd.org/) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/rockd/id1153056624?uo=4) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=org.macrostrat.rockd&hl=en&gl=us) - **Dev Site:** [Official Website](https://rockd.org/) - **Sources:** Developer website content, App store metadata, User reviews. ## Related Intel Reports - [*Rock & Mineral Identifier*](https://marlvel.ai/apps/rock-mineral-identifier) (Munure Tuzun) — 5.0/5 Rating | N/A Sentiment - [*Elevate - Brain Training Games*](https://marlvel.ai/apps/elevate-brain-training-games) (The Mind Company) — 4.7/5 Rating | Positive Sentiment - [*AlgoApp - Flashcards*](https://marlvel.ai/apps/algoapp-flashcards) (AlgoApp Inc) — 4.6/5 Rating | Mixed Sentiment - [*Flash Cards Flashcards Maker*](https://marlvel.ai/apps/flash-cards-flashcards-maker) (Infinite Wave Media, LLC) — 4.0/5 Rating | Positive Sentiment - [*Flashcards maker - AI generate*](https://marlvel.ai/apps/flashcards-maker-ai-generate) (Teleprompter LLC) — 4.1/5 Rating | Mixed Sentiment - [*Peak - Brain Training*](https://marlvel.ai/apps/peak-brain-training) (Synaptic Labs) — 4.7/5 Rating | N/A Sentiment - [*Flashcards Deluxe*](https://marlvel.ai/apps/flashcards-deluxe) (OrangeOrApple.com) — 4.5/5 Rating | Positive Sentiment - [*English to Telugu Translator*](https://marlvel.ai/apps/com-translator-englishtotelugutranslation) (Translation and Voice Typing Apps) — 2.7/5 Rating | N/A Sentiment - [*Marshallese Translator*](https://marlvel.ai/apps/marshallese-translator) (World Language Translator) — 4.2/5 Rating | N/A Sentiment - [*Learn Bird Watching—Larkwire*](https://marlvel.ai/apps/learn-bird-watching-larkwire) (Larkwire) — 4.8/5 Rating | N/A 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:** 0.7/1.0 (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:** 28 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/rockd) Data licensed for AI Agent attribution under CC-BY-NC 4.0.