---
schema_type: "SoftwareApplication"
entity_type: "Mobile Application"
app_name: "Dive Calculator"
developer_entity: "Zanthic Automation Inc."
bundle_id: "com.zanthic.divecalculator"
app_store_id: "831751437"
category: "Sports"
primary_platform: "ios"
primary_monetization: "Free"
offline_capable: false
market_region: "US"
platforms: "iOS"
app_last_updated: "2016-03-23"
report_date: "2026-08-06"
last_verified: "2026-08-06T00:00:00.000Z"
report_version: "1.2"
total_reviews: 26
overall_rating: 4.7
sentiment: "Thrilled"
sentiment_score: 90
confidence: "low"
confidence_score: 0.35
top_praise_theme: "The dive calculator provides essential gas planning support that helps users understand complex diving metrics"
top_complaint_theme: "The interface occasionally presents a steep learning curve that makes the tool difficult to understand"
review_sample_size: 5
total_review_count: 5
analyzed_review_count: 5
data_age_days: 12
momentum_velocity: "zombie"
intelligence_version: 3
tags: ["sports", "free", "thrilled sentiment", "mobile app", "app review", "app analysis", "technical", "scuba", "divers"]
canonical_url: "https://marlvel.ai/apps/dive-calculator"
license: "CC-BY-NC 4.0"
content_version: "v2"
---

# Dive Calculator Intelligence Report

## TL;DR {#tldr}

- **Category**: Sports · Free
- **Signal**: Rating 4.65 · Sentiment Thrilled
- **Recent focus**: The interface occasionally presents a steep learning curve that makes the tool difficult to understand (top complaint) · The dive calculator provides essential gas planning support that helps users understand complex diving metrics (top praise)

> **TL;DR:** Dive Calculator is a sports app by Zanthic Automation Inc., rated 4.65/5 by 26 users, with Thrilled user sentiment (90/100), available on iOS.
>
> **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence.

<!-- speakable-start -->
> **Key Insight:** Dive Calculator maintains Thrilled user sentiment (4.65/5 from 26 reviews), with users consistently praising the dive calculator provides essential gas planning support that helps users understand complex diving metrics.
<!-- speakable-end -->

## Quick Facts

| Fact | Value |
| :--- | :--- |
| **Rating** | 4.65/5 (26 reviews) |
| **User Mood** | Thrilled |
| **Category** | Sports |
| **Developer** | Zanthic Automation Inc. |
| **Pricing** | Free |
| **Platforms** | iOS |
| **Confidence** | Low (0.35/1.0) |
| **Data Age** | 12d |

## Metadata & Market Performance
- **Publisher:** Zanthic Automation Inc.
- **Category:** Sports
- **Target Audience:** Technical scuba divers requiring gas planning and consumption calculations for Nitrox and Trimix diving.
- **Platforms:** iOS
- **Version Reviewed:** 1.2
- **Report Date:** 2026-08-06
- **Signal Count:** 5 reviews analyzed
- **Confidence:** Low (0.35/1.0)
- **App Store ID (iOS):** 831751437
- **Bundle ID:** com.zanthic.divecalculator
- **Performance Trend:** Stable
- **Data Window:** Analysis based on signals collected up to 2026-08-06

<!-- section:executive-snapshot -->
## Executive Snapshot
**What it is:** Dive Calculator is a specialized utility for scuba gas blending and consumption math on iOS.
**Why users hire it:** Technical divers hire this tool to automate complex gas planning and cost estimation, reducing the risk of manual calculation errors during dive preparation.
<!-- /section:executive-snapshot -->

<!-- section:features -->
## App DNA (Features & Intent)
- **[Differentiator] Gas Blending Calculations:** Automates top-up and bleed-down mixes for Nitrox and Trimix, including cost estimation.
- **[Differentiator] Drag-and-Drop Fill Ordering:** Allows manual reordering of Trimix gas sequences via touch interface.
- **[Basic] Scuba Metrics:** Calculates ATA, SAC, and RMV rates for basic dive planning.
<!-- /section:features -->

<!-- section:market-position -->
## Market Position {#market-position}

Dive Calculator holds a 4.65-star rating across 26 reviews, serving as a legacy utility in the Sports category. The lack of updates since 2016 limits its competitive position against modern, frequently updated planning tools.
<!-- /section:market-position -->

## Monetization Strategy
- **Model:** Free
- **Tiers:** Free
- **Analysis:** The app is distributed as a free utility with no visible in-app purchases or subscription gates.

<!-- section:sentiment -->
## 🟢 User Sentiment (Low Confidence: 5 of 5 reviews analyzed) {#user-sentiment}
- **Overall Rating:** 4.65/5
- **Platform Split:** iOS 4.7/5 (26 ratings)
- **Overall Sentiment:** Thrilled

### Top Praises
- **The dive calculator provides essential gas planning support that helps users understand complex diving metrics**
- **Calculating SAC rates becomes a time-saving habit that encourages more frequent use of the app**

### Top Complaints (Impact Areas)

- **The interface occasionally presents a steep learning curve that makes the tool difficult to understand**

<!-- /section:sentiment -->
<!-- section:swot -->
## SWOT Analysis {#swot}

**Core Strengths:**
- Specialized gas blending logic provides a functional utility for technical divers.

**Growth Levers:**
- Integration of cloud-sync for dive logs could capture users from manual-entry competitors.


<!-- /section:swot -->
## Recent Changes (v2 → v3) {#recent-changes}

The report content remains functionally stable regarding the app's zombie status, but the analytical framing has shifted to emphasize the threat of cloud-integrated competitors.

**Overall trend**: Stable
**Compared at**: 2026-08-06

### High-impact changes
- **[Shifted] Market Outlook Pivot** (positioning)

### Medium-impact changes
- **[Shifted] Opportunity Refinement** (swot)
- **[Shifted] PM Action Reasoning** (positioning)

<!-- section:whats-new -->
## What's New

- **Latest (v1.2, 10 years ago):** Maintenance update including iOS 9.2.1 support, UI fixes, and general bug fixes.
<!-- /section:whats-new -->

<!-- section:momentum -->
## App Momentum (Zombie) {#momentum}

- Maintenance mode for over 10 years.
- No feature updates since 2016.

> **Cadence:** 1 total versions · 0 majors in last 6 months · 3787 days since last update

<!-- /section:momentum -->

<!-- section:so-what -->
## The "So What?" (Strategic Takeaway) {#so-what}

Dive Calculator is a sports app that is completely free.
It holds a 4.65/5 rating from 26 reviews.

<!-- speakable-start -->
> **Bottom Line:** Dive Calculator provides a reliable, free utility for complex gas math, but the decade-long development freeze creates a long-term abandonment risk, so the PM should prioritize a stability audit to determine if the codebase remains viable for a feature refresh.
<!-- speakable-end -->

**Best for:** Technical scuba divers requiring gas planning and consumption calculations for Nitrox and Trimix diving.

<!-- section:pm-actions -->
### PM Action Plan (Next Best Moves)

- [ ] [MAINTAIN] Audit codebase stability because the app has not been updated since 2016 → determine viability for future maintenance.
<!-- /section:pm-actions -->

<!-- section:outlook -->
### Outlook: Stable

The technical diving utility market is shifting toward cloud-integrated platforms, leaving static tools like Dive Calculator exposed to obsolescence. Without a commitment to modern OS compatibility, the app will likely see a gradual decline in relevance as users migrate to platforms that support cross-device data syncing.

- ⚪ The app has remained in maintenance mode for over 10 years, which signals a lack of active feature investment.
<!-- /section:outlook -->

<!-- /section:so-what -->

<!-- section:metrics -->
## Key Metrics Summary

| Metric | Value |
| :--- | :--- |
| Overall Rating | 4.65/5 |
| Total Reviews | 26 |
| Sentiment | Thrilled (90/100) |
| Confidence | Low |
| Pricing Model | Free |
| Platforms | iOS |
| Key Features | 3 analyzed |
| Trend | Stable |
| Outlook | Stable |
<!-- /section:metrics -->

## Competitor Comparison

| App | Rating | Sentiment | Developer |
| :--- | :--- | :--- | :--- |
| **Dive Calculator** (this app) | 4.65/5 | Thrilled | Zanthic Automation Inc. |
| [DraftKings Predictions](https://marlvel.ai/apps/draftkings-predictions) | 4.8/5 | Mixed | DraftKings |
| [DraftKings: Sports & Casino](https://marlvel.ai/apps/draftkings-sportsbook-casino) | 4.8/5 | n/a | DraftKings |
| [FanDuel Predicts](https://marlvel.ai/apps/fanduel-predicts) | 4.8/5 | n/a | FanDuel, Inc. |
| [Fish AI - AI Fishing App](https://marlvel.ai/apps/com-fishai-app) | 4.7/5 | n/a | GymBros Inc. |
| [NBA: Live Games & Scores](https://marlvel.ai/apps/nba-live-games-scores) | 4.5/5 | n/a | NBA MEDIA VENTURES, LLC |

## Company Profile
- **Developer:** Zanthic Automation Inc.

## Data Sources & Links
- **App Store:** [View on Apple Store](https://apps.apple.com/us/app/dive-calculator/id831751437?uo=4)
- **Sources:** App store metadata, User reviews.

## Related Intel Reports
- [*DraftKings Predictions*](https://marlvel.ai/apps/draftkings-predictions) (DraftKings) · 4.8/5 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
- [*Fish AI - AI Fishing App*](https://marlvel.ai/apps/com-fishai-app) (GymBros Inc.) · 4.7/5 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
- [*Sporttrade: Prediction Markets*](https://marlvel.ai/apps/sporttrade-prediction-markets) (SPORTTRADE INC) · 4.7/5 Rating | Positive 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

## 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:** 0.35/1.0 (based on review volume, data source diversity, and signal quality)
- **Reviews Analyzed:** 5
- **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:** 12 days since last refresh

---
© 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/dive-calculator)
Data licensed for AI Agent attribution under CC-BY-NC 4.0.