--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Mud Engineer" developer_entity: "bader alshammari" bundle_id: "com.alho00ot.Mud-Eng" app_store_id: "992941305" google_play_id: "appinventor.ai_usoromccarthy.Mud_Engineering_Calculator" category: "Business" primary_platform: "ios" primary_monetization: "Freemium" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-06-30" report_date: "2026-10-22" last_verified: "2026-10-22T00:00:00.000Z" report_version: "2.1" total_reviews: 29 overall_rating: 4.1 sentiment: "Thrilled" sentiment_score: 85 confidence: "medium" confidence_score: 0.6 top_praise_theme: "Professional engineering calculators provide high utility for drilling professionals in their daily field operations" top_complaint_theme: "Lack of metric unit support for weight measurements forces European users to perform manual conversions" review_sample_size: 10 total_review_count: 10 analyzed_review_count: 10 data_age_days: 21 momentum_velocity: "maintenance" intelligence_version: 5 nemesis: "Halliburton eRedBook® Mobile" competitor_count: 24 tags: ["business", "freemium", "thrilled sentiment", "mobile app", "app review", "app analysis", "fluids", "supervisors,", "wellsite"] canonical_url: "https://marlvel.ai/apps/com-alho00ot-mud-eng" license: "CC-BY-NC 4.0" content_version: "v2" --- # Mud Engineer Intelligence Report ## TL;DR {#tldr} - **Category**: Business · Freemium - **Signal**: Rating 4.09 · Sentiment Thrilled - **Recent focus**: Lack of metric unit support for weight measurements forces European users to perform manual conversions (top complaint) · Professional engineering calculators provide high utility for drilling professionals in their daily field operations (top praise) > **TL;DR:** Mud Engineer is a business app by bader alshammari, rated 4.09/5 by 28 users, with Thrilled user sentiment (85/100), available on iOS & Android. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Mud Engineer maintains Thrilled user sentiment (4.09/5 from 28 reviews), with users consistently praising professional engineering calculators provide high utility for drilling professionals in their daily field operations. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.09/5 (28 reviews) | | **User Mood** | Thrilled | | **Category** | Business | | **Developer** | bader alshammari | | **Pricing** | Freemium | | **Platforms** | iOS & Android | | **Confidence** | Medium (0.6/1.0) | | **Data Age** | 21d | ## Metadata & Market Performance - **Publisher:** bader alshammari - **Category:** Business - **Target Audience:** Fluids supervisors, wellsite mud engineers, and laboratory technicians. - **Platforms:** iOS & Android - **Version Reviewed:** 2.2.0 - **Report Date:** 2026-10-22 - **Signal Count:** 10 reviews analyzed - **Confidence:** Medium (0.6/1.0) - **App Store ID (iOS):** 992941305 - **Bundle ID:** com.alho00ot.Mud-Eng - **Google Play ID:** appinventor.ai_usoromccarthy.Mud_Engineering_Calculator - **Performance Trend:** Declining - **Data Window:** Analysis based on signals collected up to 2026-10-22 - **Short Description:** Mud Engineering Calculator is a tool for daily calculations for Fluids Engineers ## Executive Snapshot **What it is:** Mud Engineer is a drilling fluid calculation tool for field engineers, available on iOS and Android. **Why users hire it:** It removes the cognitive cost of manual drilling equations by providing step-by-step verification and professional PDF documentation for wellsite reports. ## App DNA (Features & Intent) - **[Standard] Drilling Calculation Suite:** Calculates mud weight, hydrostatic pressure, ECD, and annular velocity for field operations. - **[Differentiator] PDF Reporting:** Generates professional PDF reports with custom branding and watermarks. * *User Intent:* Users value self-expression and personalized experiences. - **[Standard] Calculation History:** Automatically saves and archives past calculations for quick retrieval. ## Market Position {#market-position} Mud Engineer maintains a 4.2 rating on Android but struggles with a 1.0 rating on iOS, signaling significant friction in the paid-tier experience. The lack of metric support limits its reach in international markets where rivals like ECD Calculator dominate. ## Monetization Strategy - **Model:** Freemium - **Tiers:** Free (Android), $2.99 (iOS) - **Price:** iOS: $2.99 - **Analysis:** The developer employs a platform-specific split, gating professional PDF reporting behind a one-time purchase on iOS while maintaining a free ad-supported model on Android. ## 🟢 User Sentiment (Medium Confidence: 10 of 10 reviews analyzed) {#user-sentiment} - **Overall Rating:** 4.09/5 - **Platform Split:** iOS 1.0/5 (1 ratings) | Android 4.2/5 (27 ratings) - **Overall Sentiment:** Thrilled ### Top Praises - **Professional engineering calculators provide high utility for drilling professionals in their daily field operations** - **The latest update adds valuable technical calculators that simplify complex drilling equations for field engineers** ### Top Complaints (Impact Areas) - **Lack of metric unit support for weight measurements forces European users to perform manual conversions** ## SWOT Analysis {#swot} **Core Strengths:** - Professional PDF reporting enables structured documentation workflows - Automated calculation history reduces data re-entry friction - Step-by-step equations provide technical transparency for field verification **Growth Levers:** - Localized unit support could capture international user base - Expanding calculation suite to include IADC-compliant kill sheets - Integrating API-compliant data to improve industry-standard trust ## Recent Changes (v4 → v5) {#recent-changes} The competitive outlook has declined as the app's paid iOS model and lack of metric support drive users toward free, more flexible alternatives. The analysis now explicitly frames the $2.99 price point as a barrier to retention rather than a signal of quality. **Overall trend**: Declining **Compared at**: 2026-10-22 ### High-impact changes - **[Shifted] Pricing Strategy Perception** (positioning) - **[Declined] Outlook Trend** (positioning) ### Medium-impact changes - **[] Competitive Threats** (swot) - **[] Feature Gaps Expansion** (features) ## Rivals Landscape {#rivals} > Competitive positioning identified by AI analysis of app features, category, and market signals. ### Mud Engineer vs Halliburton eRedBook® Mobile - **Halliburton eRedBook® Mobile**: Both apps target drilling professionals with calculation suites for wellsite operations, creating direct competition for the same field-engineer user base. - **Key differences:** - Halliburton eRedBook provides native toggle support for Metric and British Imperial units, whereas Mud Engineer lacks metric weight support. - Halliburton eRedBook integrates American Petroleum Institute data for pipe specifications, while Mud Engineer focuses on general drilling fluid calculations. ### Contenders (Strong Challengers) - **[Drilling Engineering](https://marlvel.ai/apps/drilling-engineering)**: Both apps target drilling professionals with specialized calculation suites, creating direct competition for field-ready technical utility. The overlap in core drilling equations forces users to choose between the rival's diagnostic logic and the source app's reporting capabilities. - Includes IADC-compliant kill sheet calculations for industry-standard compliance. - Features stuck pipe problem identification logic absent in the current Mud Engineer build. - **Friction Drilling Calculator**: Both apps target mud engineers and drilling supervisors with fluid analysis tools, creating direct competition for field-ready calculation workflows. - Friction Drilling Calculator provides interactive rheogram plotting, whereas Mud Engineer lacks visual graphing capabilities. - Friction Drilling Calculator supports five industry-standard rheological models, while Mud Engineer focuses on general drilling calculations. - **[ECD Calculator](https://marlvel.ai/apps/ecd-calculator)**: Both apps target drilling and mud engineers with specialized calculation suites for field operations, creating direct competition for the same professional user base. - ECD Calculator includes an MPD connection calculator, which creates high switching costs for specialized drilling workflows. - ECD Calculator provides interactive rheogram plotting and 2D wellbore visualization, features absent in the current Mud Engineer suite. - **[Oilfield ECD Pro](https://marlvel.ai/apps/oilfield-ecd-pro)**: Both apps target the same professional audience of mud engineers and oilfield specialists with specialized drilling calculation tools. They compete directly for user attention within the niche oilfield density calculation market. - Oilfield ECD Pro includes unit selection, while Mud Engineer lacks metric support for weight calculations. - Oilfield ECD Pro utilizes API-compliant data, whereas Mud Engineer focuses on general drilling calculation suites. - **Phrikolat HDD Basics**: Both apps target drilling fluids professionals at the jobsite, providing offline calculation tools for fluid management and drilling parameters. - Phrikolat includes specific mixing tables for soil conditions, whereas Mud Engineer focuses on general drilling equations. - Phrikolat provides integrated conversion tables for physical units, addressing a feature gap in Mud Engineer. - **[Petroleum Field Calculator](https://marlvel.ai/apps/com-siliconfox-petroleumfieldcalculator)**: Both applications target upstream oil and gas professionals with overlapping calculation suites for mud weight and pressure. They compete directly for the same field-based user demographic. - Petroleum Field Calculator includes native unit conversion, addressing a known gap in Mud Engineer. - Petroleum Field Calculator functions offline, providing utility in remote environments without connectivity requirements. - **[Mud fluid](https://marlvel.ai/apps/mud-fluid)**: Both apps target the same drilling professional audience with specialized calculation suites for field operations, creating direct competition for daily utility workflows. - Mud fluid includes wellbore flushing and dilution calculators, while Mud Engineer focuses on general drilling equations. - Mud fluid supports metric units natively, whereas Mud Engineer lacks metric support for weight calculations. - **RigCalc: Drilling Calculator**: Both apps target drilling professionals with calculation suites for field operations, creating direct competition for the same user base of mud engineers and drilling supervisors. - RigCalc provides 40+ calculators across eight categories, whereas Mud Engineer lacks a specific count or category breadth. - RigCalc includes multi-section annular analysis with ECD and pressure loss, which are absent in Mud Engineer. - **[OilField Hydrostatic Pressure.](https://marlvel.ai/apps/oilfield-hydrostatic-pressure)**: Both apps target drilling professionals and mud engineers with overlapping hydrostatic and pressure calculation utilities. The rival competes directly by offering a lower price point and native unit support for international field operations. - Native multi-unit support enables international usage, whereas Mud Engineer lacks metric weight unit support. - API-compliant data integration provides industry-standard accuracy for hydrostatic pressure calculations. - **Drilling Hydraulics (Basic)**: Both apps target drilling professionals with overlapping calculation suites for mud properties and pressure, creating direct competition for field-ready utility. - Drilling Hydraulics (Basic) includes a configurable unit system and decimal settings for calculation precision. - Drilling Hydraulics (Basic) provides native iCloud synchronization for data persistence across multiple Apple devices. ### Peers (What They Do Better) - **[Hydraulic Calculator Engineer](https://marlvel.ai/apps/hydraulic-calculator-engineer)**: This app provides a broader fluid mechanics suite that complements Mud Engineer by covering general hydraulic formulas used by the same engineering audience. - Dynamic visual diagrams for pipe calculations improve variable visualization and session depth - Integrated formula guide centralizes engineering workflows to create functional switching costs - **[Mud Weight](https://marlvel.ai/apps/mud-weight)**: This app serves as a direct alternative for mud-specific calculations, providing the metric unit support that users report missing from Mud Engineer. - Supports both API and Metric units for international drilling standard compatibility - Optimized for performance across a wide range of Android devices - **Neptune Slurry Calculator**: This app addresses the slurry and aggregate side of fluid management, serving as a specialized reference for technicians who also manage drilling fluids. - Contains calculations for water and slurry pump total dynamic head and horsepower - Includes basic conversions such as percent solids to specific gravity and mesh sizes - **Hydrostatic Pressure Calc**: This app provides a focused utility for hydrostatic pressure, which is a core component of the drilling calculations performed in Mud Engineer. - Supports up to 16 decimal places for high-precision physics calculations - Results are copyable to other applications for external workflow integration - **Hydraulic Pressure Calculator**: This app offers a specialized physics calculator for hydraulic pressure, providing a deeper dive into the mechanical forces that mud engineers monitor. - Computes parameters for both pistons in hydraulic systems based on Pascal's law - Supports up to 16 decimal places for precise engineering output - **[MudLAB - Mud Engineer Tool](https://marlvel.ai/apps/mudlab-mud-engineer-tool)**: This app functions as a mobile reference guide, providing the technical data access that complements the calculation-heavy workflow of Mud Engineer. - Provides a comprehensive reference guide for standardized industry formulas - Offers direct access to American Petroleum Institute data for field operations - **[Annular Volume Calculator](https://marlvel.ai/apps/annular-volume-calculator)**: This app provides a specific calculation module for annular volume that is essential for wellsite operations, serving as a task-specific companion to Mud Engineer. - Adheres to American Petroleum Institute standards for calculation accuracy - Field-tested across multiple international markets to ensure verified performance - **[RIG MATH App](https://marlvel.ai/apps/rig-math-app)**: This app provides a similar drilling calculation engine, serving as a free-to-use alternative for field specialists who do not require the PDF reporting of Mud Engineer. - Minimalist interface reduces cognitive load for field specialists during high-pressure tasks - Specialized calculation engine covers both drilling and pumping operations - **[Oil & Gas Calculations (Lite)](https://marlvel.ai/apps/oil-gas-calculations-lite)**: This app acts as a static reference library for reservoir and mechanical design, providing a broader engineering context than the mud-specific focus of Mud Engineer. - Comprehensive formula library covers specialized drilling and reservoir engineering - Provides mobile access to mechanical design tools for field engineers - **[HydroTech Pocket Engineer](https://marlvel.ai/apps/hydrotech-pocket-engineer)**: This app provides specialized pipeline testing calculations, serving as a secondary tool for engineers who manage both drilling fluids and pipeline infrastructure. - Includes a nitrogen volume calculator for pipeline pre-commissioning tasks - Parent company testing methodologies provide high-trust calculation logic - **Hydro Test Pressure**: This app provides a distraction-free environment for hydro-test calculations, serving as a specialized tool for the piping and pressure vessel industries. - Fully offline functionality works without internet connectivity for remote jobsite reliability - Calculates hydro-test pressure using maximum allowable working pressure and stress-ratio adjustments - **[Directional Well Survey](https://marlvel.ai/apps/directional-well-survey)**: This app provides advanced well survey interpolation, acting as a high-end technical extension for professionals who need more than basic mud calculations. - Specialized interpolation library functions as a technical barrier for general-purpose productivity rivals - Supports CSV data import and export for integration with desktop software - **[Directional Well Planning](https://marlvel.ai/apps/directional-well-planning)**: This app provides well trajectory planning, serving as a logical upgrade for engineers who need to move from fluid calculations to full wellbore planning. - Portfolio-wide data compatibility creates a suite-based switching cost for professional users - Performs 2D and 3D well trajectory calculations using the Minimum Curvature method ## What's New - **Latest (v2.2.0, 3 months ago):** Added four specialized calculators, step-by-step equation breakdowns, professional PDF reporting, and automated calculation history tracking. ## App Momentum (Maintenance) {#momentum} - Shipped four new drilling calculators. - Added professional PDF reporting features. - Maintains maintenance-mode release cadence. > **Cadence:** 5 total versions · 2 majors in last 6 months · 113 days since last update · 888 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} Mud Engineer is a market-leading business app that is free with in-app purchases. With a 4.09/5 rating from 28 reviews, it delivers strong user satisfaction. > **Bottom Line:** Mud Engineer's professional reporting provides a clear utility, but the lack of metric support and the paid iOS barrier are driving users to free, more flexible rivals. Pivoting to a freemium model and localizing units would unlock the international field-engineer segment. **Best for:** Fluids supervisors, wellsite mud engineers, and laboratory technicians. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Ship native metric unit support because user complaints cite this as the top friction point → reduce churn to international rivals ### Feature Gaps vs Competitors - Native metric unit support (available in Halliburton eRedBook but missing here) ### Outlook: Declining The drilling fluid calculation market is consolidating around free, unit-flexible tools that integrate industry-standard data. Mud Engineer's reliance on a paid iOS model and its failure to support metric units leaves it exposed to faster-moving rivals, which will likely accelerate user churn into the next quarter. - 🔴 The lack of metric support forces European users to perform manual conversions → increased churn to unit-flexible rivals like ECD Calculator. - 🔴 Maintenance-mode release cadence leaves Mud Engineer exposed to rivals with 2-week update cycles → erosion of technical relevance in the field. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.09/5 | | Total Reviews | 28 | | Sentiment | Thrilled (85/100) | | Confidence | Medium | | Pricing Model | Freemium | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Trend | Declining | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Mud Engineer** (this app) | 4.09/5 | Thrilled | bader alshammari | | [Petroleum Field Calculator](https://marlvel.ai/apps/com-siliconfox-petroleumfieldcalculator) | N/A/5 | N/A | Paul Femiak | | [Mud Weight](https://marlvel.ai/apps/mud-weight) | 3.0/5 | N/A | GoodStamp | | [MudLAB - Mud Engineer Tool](https://marlvel.ai/apps/mudlab-mud-engineer-tool) | N/A/5 | N/A | zhandos uakanov | | [Oilfield ECD Pro](https://marlvel.ai/apps/oilfield-ecd-pro) | 3.0/5 | N/A | zhandos uakanov | | [OilField Hydrostatic Pressure.](https://marlvel.ai/apps/oilfield-hydrostatic-pressure) | N/A/5 | N/A | zhandos uakanov | ## Company Profile - **Developer:** bader alshammari - **Website:** [https://twitter.com/swifttime2](https://twitter.com/swifttime2) - **Social:** [X/Twitter](https://twitter.com/privacy) ## Data Sources & Links - **App Store ID:** 992941305 - **Google Play ID:** appinventor.ai_usoromccarthy.Mud_Engineering_Calculator - **Dev Site:** [Official Website](https://twitter.com/swifttime2) - **Sources:** Developer website content, About us / company information, App store metadata, User reviews. ## Related Intel Reports - [*Petroleum Field Calculator*](https://marlvel.ai/apps/com-siliconfox-petroleumfieldcalculator) (Paul Femiak) · N/A Rating - [*Mud Weight*](https://marlvel.ai/apps/mud-weight) (GoodStamp) · 3.0/5 Rating - [*MudLAB - Mud Engineer Tool*](https://marlvel.ai/apps/mudlab-mud-engineer-tool) (zhandos uakanov) · N/A Rating - [*Oilfield ECD Pro*](https://marlvel.ai/apps/oilfield-ecd-pro) (zhandos uakanov) · 3.0/5 Rating - [*OilField Hydrostatic Pressure.*](https://marlvel.ai/apps/oilfield-hydrostatic-pressure) (zhandos uakanov) · N/A Rating - [*Annular Volume Calculator*](https://marlvel.ai/apps/annular-volume-calculator) (zhandos uakanov) · N/A Rating - [*HydroTech Pocket Engineer*](https://marlvel.ai/apps/hydrotech-pocket-engineer) (michael schricker) · N/A Rating - [*Drilling Engineering*](https://marlvel.ai/apps/drilling-engineering) (PT. Pertamina (Persero)) · 3.8/5 Rating - [*RIG MATH App*](https://marlvel.ai/apps/rig-math-app) (Gingerich Well & Pump Service, LLC) · N/A Rating - [*Oil & Gas Calculations (Lite)*](https://marlvel.ai/apps/oil-gas-calculations-lite) (Aliasgar Rangwala) · N/A Rating ## Frequently Asked Questions {#faq} ### Is Mud Engineer suitable for international drilling projects? Currently, Mud Engineer lacks native metric unit support for weight calculations, which may require manual conversions for international projects. Users report this as a primary frustration compared to rivals like Halliburton eRedBook. ### How does Mud Engineer compare to ECD Calculator? ECD Calculator offers a free pricing model and specialized MPD connection logic, whereas Mud Engineer charges $2.99 on iOS and focuses on general drilling calculations, though it provides superior PDF reporting. ### Does Mud Engineer have a free version? Mud Engineer is free on Android, but the iOS version requires a $2.99 one-time purchase to access professional features like PDF reporting. ### What is a free alternative to Mud Engineer? ECD Calculator and Drilling Engineering are free alternatives that offer specialized diagnostic logic and native unit support, which Mud Engineer currently lacks. ## 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:** 0.6/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 10 - **Data Sources:** user reviews, developer website, company about page, 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:** 21 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/com-alho00ot-mud-eng) Data licensed for AI Agent attribution under CC-BY-NC 4.0.