Best Dr. DE alternatives: apps like Dr. DE

10+ similar apps compared and reviewed

4.6 avg rating

10 free apps

Updated October 2026

Pegasus Vertex, Inc.

Dr. DE is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to Dr. DE

Hole Volumes by Ash Point Ltd.

Casing & Tubing Volumes

Editor's Choice

🔧 Utilities

4.0(3 ratings)

Free

This app calculates various oilfield volumes, including hole, annular, tubing, and displacement. Users input depth, casing, and tubing sizes to get quick results. It supports both metric and standard units and allows for custom pipe sizes.

Drillstring Toolbox by Bureau Veritas North America, Inc.

Strong Contender

🔧 Utilities

3.3(3 ratings)

Free

This utility app calculates drill-stem load capacities based on API connections and sizes. It also provides makeup torque and tensile capacity, as well as tensile and torsion capacities for drill pipe tubes.

Directional Survey Methods by Carlos Moura

Calculations and Formulas

Worth Considering

🔧 Utilities

0.0(0 ratings)

Free

More apps like Dr. DE

Mud Man Pro

by Colten Meadows

Free

This offline drilling fluid calculator provides essential tools for mud engineers on the rig. It offers over 20 specialized calculators for various fluid properties and operations, along with a comprehensive field notes library. Designed for speed and accuracy without internet dependency.

20+ drilling fluid calculatorsOBM and WBM supportOffline functionality

This utility app assists oil and gas field personnel with essential calculations for well workovers. It provides tools for hydrostatic pressure, internal capacity, and other critical functions, serving as a convenient resource for rig site or office use.

Hydrostatic pressure calculationsInternal capacity calculationsOil and gas well workover tools

TallyRig: Well Control Calc

Oilfield Calcs + Saved History

Petroleum Engineering Calcs

This utility app assists drilling and mud engineers in calculating Equivalent Circulating Density (ECD) at any point during operations. It offers a streamlined process with just a few clicks.

ECD calculationDrilling engineeringMud engineering

Oil & Gas Calculator : OilCalc

Drilling, production Calcs

Free

This app provides specialized calculators for oil and gas professionals, covering drilling, production, reservoir analysis, and trading. It offers quick calculations with guided inputs, unit conversions, and shareable reports for field operations.

Drilling calculations (MASP, kick tolerance)Production metrics (GOR, tank volumes)Reservoir analysis (OOIP, decline curves)

🔧 Utilities

(2)

free with in-app purchases

Compare with Dr. DE

DrillOut Calcs

Common plug drill-out calcs

Free

This app offers essential calculations for oilfield professionals performing post-frac plug drill-outs. It provides quick and accurate tools to verify flow balance, annular velocity, sweep efficiency, and surface return timing in real time, designed for simplicity and speed.

Post-frac plug drill-out calculationsFlow balance verificationAnnular velocity calculation