Comparison

Mud Engineer vs Corva

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Mud Engineer

This app provides essential drilling calculations for mud engineers. It helps determine final mud weight, volume adjustments, and the number of sacks needed for various drilling scenarios.

Highlights
  • Final Mud Weight calculation
  • Volume calculations
  • Sack calculations
  • lb/bbl calculation
  • Weight Up calculation
Features
Currently charting
Read full description

Mud engineers play a crucial role in ensuring the smooth operation of drilling programs. The Mud Engineer App is an essential tool for mud engineers, providing a foundation for essential drilling calculations. These calculations include Final Mud Weight, Final Volume, Volume 1, Volume 2, End Volume, BBLs required to adjust Mud Weight, Number of Sacks, Volume Increase, lb/bbl, Weight Up, Hydrostatic Pressure, Equivalent Circulating Density (ECD), Annular Velocity, and Pump Output. Calculate the final mud weight by mixing two fluids with different mud weights. Determine the required volume of each fluid with known mud weights and a desired final weight to achieve the desired mud weight. Calculate the number of barrels needed to add a fluid with a known density to reduce mud weight. Weight Up calculation. Calculate hydrostatic pressure from mud weight and true vertical depth. Determine the Equivalent Circulating Density (ECD) from annular pressure loss. Calculate annular velocity from pump rate and hole/pipe geometry. Calculate triplex pump output per stroke and flow rate. Every calculation shows a step-by-step equation worked out with your own numbers and your chosen units, and can be exported as a professional PDF report with input and result tables, your name or company, the date, and an app watermark. All results are saved automatically in a searchable History, with support for multiple unit systems, customizable defaults, decimal precision, and a light or dark theme. Special thanks to Eng. Mahmoud Elbeltagy for contributing to the development of these calculations.

About

Corva

This app provides real-time drilling and completions optimization for the oil and gas industry. It offers dynamic visualizations and data-driven insights to enhance operational efficiency and well performance.

Highlights
  • Digital Drilling visualization
  • Digital Completions operations view
  • Real-time drilling dynamics tracking
  • Treatment Plot for wellhead pressure and fluid volumes
  • AI-powered tools for operational excellence
Features
Read full description

Discover the future of oil & gas operations with Corva, the ultimate app for real-time drilling and completions optimization. Designed for seamless collaboration and unparalleled insights, Corva empowers your team with the tools to make data-driven decisions, enhance efficiency, and maximize well performance. Key Features: Digital Drilling Visualize your rig operations dynamically and monitor critical metrics like depth, and ROP in real-time. Stay ahead with actionable insights that boost operational efficiency. Digital Completions Experience a redefined frac operations view with real-time pressure data, fleet performance metrics, and a full zipper frac overview for unparalleled decision-making. Traces Track drilling dynamics, optimize processes, and gain a deeper understanding of downhole performance with live data visualization. Treatment Plot Real-time wellhead pressure, fluid volumes, and proppant insights keep you in control and ensure optimized completions. Why Corva? From the rig floor to corporate offices, Corva bridges the gap between data and action. With cutting-edge visualizations, AI-powered tools, and unmatched transparency, your team will have everything needed to drive operational excellence. Download Corva today and elevate your oil & gas operations to a whole new level!

Screenshots

Mud Engineer3 screens
Corva4 screens

Verdict

The call

The clearest difference is price: Corva at Free against Mud Engineer's $2.99. Corva also leads on rating (5.0 vs 1.0) and update cadence (every 10 days vs every 34 months). Mud Engineer's advantage is chart position (#72 vs unranked) and iOS requirement (13.0 vs 15.1). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Corva is free to download; Mud Engineer costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Corva holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

Mud Engineer ships an update every 34 months, Corva every 10 days. The most recent releases landed on September 17, 2026 and September 10, 2026 respectively.

Scorecard6 real differences · 5 level
Mud Engineer versus Corva: the parameters behind the verdict, then further details
ParameterMud EngineerCorva
Price$2.99Free — better
Rating1.0 (1 ratings)5.0 (2 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings12 — better
Update frequencyEvery 34 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidAd-supported — better
Best chart rank#72 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size31 MB178 MB
Age rating17+4+
Developerbader alshammariCorva

Customer experience

Mud Engineer

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Corva

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Mud Engineer

No in-app purchases

None

Corva

No in-app purchases

Questions

Is Mud Engineer free?
Mud Engineer costs $2.99, with no in-app purchases.
Is Corva free?
Corva is free to download, with no in-app purchases.
Which has better reviews, Mud Engineer or Corva?
Corva is rated higher. Mud Engineer averages 1.0 out of 5 from 1 ratings, while Corva averages 5.0 from 2 ratings.
Do Mud Engineer or Corva have ads?
Neither Mud Engineer nor Corva shows ads.
Which is updated more often, Mud Engineer or Corva?
Mud Engineer ships an update every 34 months, and Corva every 10 days. Most recently, Mud Engineer was updated on September 17, 2026 and Corva on September 10, 2026.

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