--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Dive Log Book" developer_entity: "Massimiliano Petrucci" bundle_id: "LRP6EX4KXU.DNAchief" app_store_id: "304095527" category: "Sports" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2017-03-31" report_date: "2026-07-28" last_verified: "2026-07-28T00:00:00.000Z" report_version: "6.1" total_reviews: 3 overall_rating: 1.3 confidence: "low" confidence_score: 0.05 data_age_days: 107 momentum_velocity: "zombie" intelligence_version: 3 nemesis: "Subsurface-mobile" competitor_count: 5 tags: ["sports", "free", "mobile app", "app review", "app analysis", "scuba", "divers", "using"] canonical_url: "https://marlvel.ai/apps/dive-log-book" license: "CC-BY-NC 4.0" content_version: "v2" --- # Dive Log Book Intelligence Report ## TL;DR {#tldr} - **Category**: Sports · Free - **Signal**: Rating 1.33 > **TL;DR:** Dive Log Book is a sports app by Massimiliano Petrucci, rated 1.33/5 by 3 users, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Dive Log Book is a sports app by Massimiliano Petrucci. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 1.33/5 (3 reviews) | | **Category** | Sports | | **Developer** | Massimiliano Petrucci | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.05/1.0) | | **Data Age** | 107d | ## Metadata & Market Performance - **Publisher:** Massimiliano Petrucci - **Category:** Sports - **Target Audience:** Scuba divers using legacy SCUBAPRO UWATEC equipment who need to digitize and carry their dive logs. - **Platforms:** iOS - **Version Reviewed:** 6.1 - **Report Date:** 2026-07-28 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.05/1.0) - **App Store ID (iOS):** 304095527 - **Bundle ID:** LRP6EX4KXU.DNAchief - **Performance Trend:** Declining - **Data Window:** Analysis based on signals collected up to 2026-07-28 ## Executive Snapshot **What it is:** Dive Log Book is a legacy utility for importing and displaying SCUBAPRO UWATEC dive computer data on iPhone. **Why users hire it:** Users hire this app to digitize and carry historical dive logs from legacy PC software, serving a niche need for long-term data preservation. ## App DNA (Features & Intent) - **[Differentiator] Dive Data Import:** Imports dive profile data from SmartTRAK and DataTRAK PC files to the mobile device. * *User Intent:* Users seek enhanced value through premium features. - **[Differentiator] SCUBAPRO UWATEC Integration:** Transfers dive logs from Aladin, Smart, and Galileo series dive computers. * *User Intent:* Users seek enhanced value through premium features. - **[Standard] Educational Photo Library:** Provides reference images of fish, corals, and nudibranchs for identification. * *User Intent:* Users seek enhanced value through premium features. ## Market Position {#market-position} Dive Log Book occupies a legacy utility position in the Sports category, with no updates since March 2017 and a 1.3-star rating. The lack of active development prevents it from competing with modern, automated logging platforms. ## Monetization Strategy - **Model:** Free - **Tiers:** Free - **Analysis:** The app is distributed as a free utility with no visible subscription or IAP gates. ## SWOT Analysis {#swot} **Core Strengths:** - Niche compatibility with legacy SCUBAPRO UWATEC hardware series **Growth Levers:** - Pivot to an open-source archive model to preserve legacy data access ## Recent Changes (v2 → v3) {#recent-changes} The intelligence report shifted from exploring a potential cloud-native pivot to recommending a product sunset due to sustained development dormancy. **Overall trend**: Declining **Compared at**: 2026-07-28 ### High-impact changes - **[Shifted] Sunset Recommendation** (positioning) - **[Shifted] Primary Nemesis Update** (positioning) ### Medium-impact changes - **[Added] Formalized Weaknesses and Threats** (swot) ## Rivals Landscape {#rivals} > Competitive positioning identified by AI analysis of app features, category, and market signals. ### Dive Log Book vs Subsurface-mobile - **[Subsurface-mobile](https://marlvel.ai/apps/subsurface-mobile)** by Dirk Hohndel: This is the most active, feature-rich, and widely adopted open-source dive logging platform currently available. - **Key differences:** - Supports comprehensive multi-vendor dive computer downloads via Bluetooth and USB connectivity - Provides advanced graphical dive profile analysis tools that exceed basic manual logging capabilities - Maintains a robust cross-platform synchronization engine between desktop and mobile environments ### Contenders (Strong Challengers) - **[Garmin Dive™](https://marlvel.ai/apps/garmin-dive)** by Garmin: Leverages deep hardware ecosystem integration to capture the largest segment of active, modern divers. - Seamlessly syncs dive data automatically from Garmin-branded wrist-worn dive computers - Integrates social sharing and community features directly into the post-dive experience - **[Dive Log](https://marlvel.ai/apps/com-somemore-divelog)** by Greg Mclaughlin: Provides a mature, dedicated mobile-first logging experience that has sustained consistent user interest. - Focuses on a clean, mobile-optimized interface for rapid logging immediately after surfacing - Includes specialized fields for tracking gear maintenance and certification expiration dates - **[MacDive](https://marlvel.ai/apps/com-mintsoftware-macdive)** by Mint Software Ltd: Offers a high-fidelity desktop-to-mobile workflow tailored for serious enthusiasts and professional divers. - Prioritizes detailed equipment tracking and comprehensive site-specific logging metadata - Designed for power users who require extensive data management and reporting capabilities ### Peers (What They Do Better) - **[Suunto](https://marlvel.ai/apps/suunto)** by Suunto: A broader fitness-tracking ecosystem that includes dive logging as a subset of overall athletic performance. - Consolidates dive logs with general health, heart rate, and GPS activity tracking - Users report the app's broad focus sometimes obscures specific dive-centric data visualization needs ## What's New - **Latest (v6.1, 9 years ago):** Updated Dropbox support and general bug fixes. ## App Momentum (Zombie) {#momentum} - Dormant development for nine years. - Last major release March 2017. > **Cadence:** 1 total versions · 0 majors in last 6 months · 3406 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Dive Log Book is a sports app that is completely free. It holds a 1.33/5 rating from 3 reviews. > **Bottom Line:** Dive Log Book is a legacy utility that no longer meets modern diver needs, because its nine-year development silence prevents it from supporting automated data ingestion. The PM should sunset the app to avoid further brand drag and focus on modern platforms. **Best for:** Scuba divers using legacy SCUBAPRO UWATEC equipment who need to digitize and carry their dive logs. ### PM Action Plan (Next Best Moves) - [ ] [SUNSET] Sunset the product because the nine-year development gap makes maintenance unviable → reallocate resources to modern platform development. ### Feature Gaps vs Competitors - Automated multi-vendor dive computer downloads (available in Subsurface-mobile) ### Outlook: Declining The dive logging market is consolidating around automated, cross-platform solutions that sync directly with modern hardware. Dive Log Book remains exposed and stagnant, as its reliance on manual legacy imports provides no path to retention in a market that demands real-time data visualization. - 🔴 The nine-year development hiatus confirms the app is in maintenance-only mode, which accelerates user churn to modern, feature-rich alternatives. - 🔴 The 1.3-star rating indicates that the current feature set fails to meet modern user expectations for connectivity and stability. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 1.33/5 | | Total Reviews | 3 | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Trend | Declining | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Dive Log Book** (this app) | 1.33/5 | N/A | Massimiliano Petrucci | | [Dive Log](https://marlvel.ai/apps/com-somemore-divelog) | 4.7/5 | Thrilled | Greg Mclaughlin | | [MacDive](https://marlvel.ai/apps/com-mintsoftware-macdive) | 4.8/5 | N/A | Mint Software Ltd | | [Garmin Dive™](https://marlvel.ai/apps/garmin-dive) | 4.8/5 | N/A | Garmin | | [Suunto](https://marlvel.ai/apps/suunto) | 4.2/5 | N/A | Suunto | | [Subsurface-mobile](https://marlvel.ai/apps/subsurface-mobile) | 4.5/5 | N/A | Dirk Hohndel | ## Company Profile - **Developer:** Massimiliano Petrucci - **Website:** [https://www.dnablu.it/nostre_immersioni.asp](https://www.dnablu.it/nostre_immersioni.asp) ## Data Sources & Links - **App Store ID:** 304095527 - **Dev Site:** [Official Website](https://www.dnablu.it/nostre_immersioni.asp) - **Sources:** App store metadata. ## Related Intel Reports - [*Dive Log*](https://marlvel.ai/apps/com-somemore-divelog) (Greg Mclaughlin) · 4.7/5 Rating | Excellent Sentiment - [*MacDive*](https://marlvel.ai/apps/com-mintsoftware-macdive) (Mint Software Ltd) · 4.8/5 Rating - [*Garmin Dive™*](https://marlvel.ai/apps/garmin-dive) (Garmin) · 4.8/5 Rating - [*Suunto*](https://marlvel.ai/apps/suunto) (Suunto) · 4.2/5 Rating - [*Subsurface-mobile*](https://marlvel.ai/apps/subsurface-mobile) (Dirk Hohndel) · 4.5/5 Rating - [*DraftKings Predictions*](https://marlvel.ai/apps/draftkings-predictions) (DraftKings) · 4.9/5 Rating - [*DraftKings: Sports & Casino*](https://marlvel.ai/apps/draftkings-sportsbook-casino) (DraftKings) · 4.8/5 Rating - [*FanDuel Predicts*](https://marlvel.ai/apps/fanduel-predicts) (FanDuel, Inc.) · 4.8/5 Rating - [*NBA: Live Games & Scores*](https://marlvel.ai/apps/nba-live-games-scores) (NBA MEDIA VENTURES, LLC) · 4.5/5 Rating - [*PrizePicks - Sports Picks*](https://marlvel.ai/apps/prizepicks-sports-picks) (SidePrize, LLC) · 4.5/5 Rating ## Frequently Asked Questions {#faq} ### Is Dive Log Book still supported for new dive computers? No, the app has not been updated since 2017 and is designed specifically for legacy SCUBAPRO UWATEC models like the Aladin, Smart, and Galileo series. ### How does Dive Log Book compare to Subsurface-mobile? Subsurface-mobile is an actively maintained, open-source platform that supports automated data ingestion from many modern dive computers, whereas Dive Log Book is a legacy tool limited to manual imports from specific older hardware. ### What is a better alternative for modern dive logging? Users should consider Subsurface-mobile for its broad hardware support and active development, or Garmin Dive if they use Garmin-branded equipment. ## 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:** 0.05/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 0 - **Data Sources:** 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:** 107 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/dive-log-book) Data licensed for AI Agent attribution under CC-BY-NC 4.0.