--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Erebus Scuba Dive Log & Deco" developer_entity: "Leviathan Systems Ltd" bundle_id: "com.leviathan-sys.erebus" app_store_id: "6780519891" category: "Sports" primary_platform: "ios" primary_monetization: "Subscription" offline_capable: true market_region: "US" platforms: "iOS" app_last_updated: "2026-09-02" report_date: "2026-10-04" last_verified: "2026-10-04T00:00:00.000Z" report_version: "1.0.3" total_reviews: 1 overall_rating: 1 confidence: "low" confidence_score: 0.2 data_age_days: 42 momentum_velocity: "maintenance" intelligence_version: 2 tags: ["sports", "subscription", "mobile app", "app review", "app analysis", "recreational", "technical", "scuba"] canonical_url: "https://marlvel.ai/apps/erebus-scuba-dive-log-deco" license: "CC-BY-NC 4.0" content_version: "v2" --- # Erebus Scuba Dive Log & Deco Intelligence Report ## TL;DR {#tldr} - **Category**: Sports · Subscription - **Signal**: Rating 1 > **TL;DR:** Erebus Scuba Dive Log & Deco is a sports app by Leviathan Systems Ltd, rated 1/5 by 1 users, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Erebus Scuba Dive Log & Deco is a sports app by Leviathan Systems Ltd. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 1/5 (1 review) | | **Category** | Sports | | **Developer** | Leviathan Systems Ltd | | **Pricing** | Subscription | | **Platforms** | iOS | | **Confidence** | Low (0.2/1.0) | | **Data Age** | 42d | ## Metadata & Market Performance - **Publisher:** Leviathan Systems Ltd - **Category:** Sports - **Target Audience:** Recreational and technical scuba divers requiring detailed logbook management, decompression planning, and equipment maintenance tracking. - **Platforms:** iOS - **Version Reviewed:** 1.0.3 - **Report Date:** 2026-10-04 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.2/1.0) - **App Store ID (iOS):** 6780519891 - **Bundle ID:** com.leviathan-sys.erebus - **Data Window:** Analysis based on signals collected up to 2026-10-04 ## Executive Snapshot **What it is:** Erebus Scuba Dive Log & Deco is a dive management app for technical and recreational divers, offering decompression planning, gear tracking, and offline logging on iOS. **Why users hire it:** The app removes the cognitive and logistical friction of managing complex decompression profiles and equipment maintenance in remote locations where internet access is unavailable. ## App DNA (Features & Intent) - **[Differentiator] Bühlmann ZHL-16C Decompression Planning:** Calculates decompression profiles using gradient factors and real-time tissue saturation. * *User Intent:* Users seek enhanced value through premium features. - **[Differentiator] Offline Data Access:** Stores all logs and site data locally for use in remote locations. * *User Intent:* Users want uninterrupted access without internet dependency. - **[Differentiator] Gas Calculator:** Computes gas mixes and cylinder density using NIST REFPROP data. * *User Intent:* Users seek enhanced value through premium features. ## Market Position {#market-position} Erebus Scuba Dive Log & Deco occupies a specialized niche in the Sports category, prioritizing technical utility over mass-market appeal. The current maintenance-only release cadence suggests a focus on stability rather than rapid feature expansion. ## Monetization Strategy - **Model:** Subscription - **Tiers:** 14-day free trial, Premium subscription (monthly or annual) - **Analysis:** The subscription model gates advanced technical planning and gas calculation tools behind a premium paywall. ## SWOT Analysis {#swot} **Core Strengths:** - Offline-first architecture ensures utility in remote dive environments - NIST REFPROP-backed gas calculations provide high-pressure accuracy **Growth Levers:** - Expand gear and compressor management to increase switching costs - Localize technical documentation to capture international market segments ## What's New - **Latest (v1.0.3, 1 months ago):** Maintenance update addressing minor bugs. ## App Momentum (Maintenance) {#momentum} - Ships maintenance updates only - Last major release unavailable > **Cadence:** 1 total versions · 0 majors in last 6 months · 32 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Erebus Scuba Dive Log & Deco is a sports app. It holds a 1/5 rating from 1 review. > **Bottom Line:** Erebus Scuba Dive Log & Deco holds a defensible position through its specialized technical planning tools, but the current maintenance-only cadence risks stagnation; shifting resources to address top-requested features would unlock growth in the technical diving segment. **Best for:** Recreational and technical scuba divers requiring detailed logbook management, decompression planning, and equipment maintenance tracking. ### PM Action Plan (Next Best Moves) - [ ] [PIVOT] Ship feature-focused updates because the current maintenance-only cadence limits growth → increase user retention ### Outlook: Stable The technical diving market is consolidating around apps that offer both planning and community features, placing Erebus Scuba Dive Log & Deco in a neutral position. A shift toward feature-led development is necessary to prevent churn as competitors increase their update frequency. - ⚪ The maintenance-only release cadence suggests a focus on stability, which preserves current utility but limits competitive differentiation against faster-moving rivals. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 1/5 | | Total Reviews | 1 | | Confidence | Low | | Pricing Model | Subscription | | Platforms | iOS | | Key Features | 3 analyzed | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Erebus Scuba Dive Log & Deco** (this app) | 1/5 | N/A | Leviathan Systems Ltd | | [Football Playbook Animator](https://marlvel.ai/apps/football-playbook-animator) | 4.6/5 | N/A | BJT Software LLC | | [Football Play Designer](https://marlvel.ai/apps/football-play-designer) | 4.1/5 | N/A | greg brady | | [QZ Fitness](https://marlvel.ai/apps/qz-qdomyos-zwift) | 4.8/5 | Thrilled | Roberto Viola | | [플레이공](https://marlvel.ai/apps/com-tychesoft-playball) | N/A/5 | N/A | Tychesoft | | [더블이글 - 요즘 골프예약](https://marlvel.ai/apps/com-albatrss-de) | 4.0/5 | N/A | Double Eagle Inc. | ## Company Profile - **Developer:** Leviathan Systems Ltd - **Website:** [https://erebus.nammu-tech.com](https://erebus.nammu-tech.com) ## Data Sources & Links - **App Store ID:** 6780519891 - **Dev Site:** [Official Website](https://erebus.nammu-tech.com) - **Sources:** Developer website content, App store metadata. ## Related Intel Reports - [*Football Playbook Animator*](https://marlvel.ai/apps/football-playbook-animator) (BJT Software LLC) · 4.6/5 Rating - [*Football Play Designer*](https://marlvel.ai/apps/football-play-designer) (greg brady) · 4.1/5 Rating - [*QZ Fitness*](https://marlvel.ai/apps/qz-qdomyos-zwift) (Roberto Viola) · 4.8/5 Rating | Excellent Sentiment - [*플레이공*](https://marlvel.ai/apps/com-tychesoft-playball) (Tychesoft) · N/A Rating - [*더블이글 - 요즘 골프예약*](https://marlvel.ai/apps/com-albatrss-de) (Double Eagle Inc.) · 4.0/5 Rating - [*테니스타운*](https://marlvel.ai/apps/com-momzit-tennistown) (link.tennistown) · 3.5/5 Rating - [*イッツゴーン！ボイス*](https://marlvel.ai/apps/jp-co-gaora-itsgone) (GAORA Inc.) · N/A Rating - [*トニーくんのビッグバンサーブ*](https://marlvel.ai/apps/jp-hase-volley4) (hasegawa takuji) · 4.0/5 Rating - [*00:36*](https://marlvel.ai/apps/00-36) (Adriaan de Jongh) · N/A Rating - [*하루 1루*](https://marlvel.ai/apps/randori-onebaseaday) (hyunseo kim) · 5.0/5 Rating ## Frequently Asked Questions {#faq} ### Is Erebus Scuba Dive Log & Deco suitable for technical diving? Yes, the app includes Bühlmann ZHL-16C decompression planning, gradient factors, and real-time tissue saturation tracking specifically for technical and CCR configurations. ### Does Erebus Scuba Dive Log & Deco work without internet? Yes, the app is designed to be fully offline-capable, allowing users to access dive logs, site data, and gear profiles in remote locations without connectivity. ### What features are included in the premium subscription? The premium subscription unlocks the full feature set, including advanced technical decompression planning and gas calculation tools. ## 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:** 0.2/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 0 - **Data Sources:** 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:** 42 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/erebus-scuba-dive-log-deco) Data licensed for AI Agent attribution under CC-BY-NC 4.0.