Mud Engineer vs OmacPro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Final Mud Weight calculation
- Volume calculations
- Sack calculations
- lb/bbl calculation
- Weight Up calculation
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Mud Engineer App – Drilling Fluids Calculator Mud engineers play a crucial role in keeping drilling programs running smoothly. The Mud Engineer App is an essential field tool that gives you 14 drilling-fluid and well-control calculators in one place, built for rig work: fast input, clear step-by-step equations, professional PDF reports, and full offline use. CALCULATORS • Final Mud Weight – mix two fluids and get the resulting weight and volume • Volume – volumes of two fluids needed to build a required volume at a target weight • Reduce Mud Weight – barrels of a lighter fluid (water, seawater, diesel) to dilute the mud • Weight Up – sacks, lb/bbl, total material, volume increase and final volume (barite, CaCO3, hematite) • Hydrostatic Pressure and pressure gradient • Equivalent Circulating Density (ECD) • Annular Velocity • Triplex Pump Output – bbl/stroke, bbl/min and flow rate • Kill Sheet – Kill Mud Weight, ICP and FCP, with safety margin • Bottoms Up – annular volume, strokes and time • Pipe Capacity & Displacement – open-ended and closed-end • Oil/Water Ratio – from retort readings, with oil or water to add to reach a target ratio • Rheology – PV, YP, apparent viscosity, n and K from Fann 600/300 readings • EMW & Pressure Gradient BUILT FOR THE FIELD • Step-by-step worked equation with your own numbers, plus the formula reference • Change units right inside each field – values convert automatically • Quick-value chips: barite, CaCO3, hematite, water, seawater, diesel, sack sizes, pump efficiency • Smart checks catch unit slips (e.g. 35 typed into an SG field) and impossible inputs • Values carry over between calculators: pump output feeds Bottoms Up and Annular Velocity, the new mud weight feeds Hydrostatic, ECD and Kill Sheet WELLS & HISTORY • Manage multiple wells (name, rig, field); each well keeps its own calculations and values • Every calculation is saved automatically in a searchable history, filtered by well, date or calculator • Export history to CSV (Excel) or a combined PDF PROFESSIONAL PDF REPORTS Input and result tables, the worked equation, the reference, the well, your name or company, the date and an app watermark – ready to share. UNITS & SETTINGS • Oilfield and metric units: ppg, SG, g/cm³, kg/m³, pcf, bbl, m³, gal, L, ft, m, in, mm, psi, bar, kPa, gpm, L/min, bbl/min, m³/min • Exact unit conversions • English and Arabic interface • Favorites and search on the home screen • Adjustable decimal places, light or dark theme • Works fully offline – no account, no ads, your data stays on your device Formulas follow standard oilfield references (Lapeyrouse, Formulas and Calculations for Drilling; IWCF kill sheet; API RP 13B) and are verified against published worked examples. Special thanks to Eng. Mahmoud Elbeltagy for contributing to the development of these calculations.
OmacPro
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Mobile application for customers of “Omac Integrated” company. The application allows you to make calculations when preparing a drilling fluid, evaluate the effectiveness of the treatment equipment and contains reference tables for the drilling fluid engineer. software allows operators to online automate calculations of production processes during drilling, to compile daily reports on drilling fluids and analyze well situation. The application provides complete control of all aspects of the drilling fluids service in the fields and makes it possible to quickly adapt to changing well conditions to achieve maximum efficiency. Online opportunities: Daily drilling fluid report; Operational PUSH notifications of changes in drilling fluid parameters during drilling; Graphs of changes in solution parameters; Comparison of planned and actual data for the well; Drilling fluid parameters; Drilling parameters; Volume control; Consumption of chemicals; Hydraulics and solid phase analysis; Control of solids equipment from cuttings, etc .; Part of the functionality is available only to authorized users.
Screenshots
Verdict
The clearest difference is price: OmacPro at Free against Mud Engineer's $2.99. OmacPro also leads on update cadence (monthly vs every 25 months) and iOS requirement (10.0 vs 15.0). Mud Engineer's advantage is chart position (#130 vs unranked). On 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
OmacPro is free to download; Mud Engineer costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Mud Engineer ships an update every 25 months, OmacPro monthly. The most recent releases landed on November 11, 2026 and October 29, 2026 respectively.
| Parameter | Mud Engineer | OmacPro |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 25 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Best chart rank | #130 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 32 MB | 67 MB |
| Age rating | 4+ | 4+ |
| Developer | bader alshammari | OMAS INTEGREITED, TOO |
In-app purchases
Mud Engineer
No in-app purchases
OmacPro
No in-app purchases









