Comparison

Dr. DE vs Driller's Method

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

Head to head
About

Dr. DE

This mobile toolbox simplifies complex drilling engineering calculations. It offers a comprehensive suite of 29 functions across 11 categories, eliminating the need for handbooks and improving efficiency for engineers and technicians.

Highlights
  • 29 drilling engineering functions
  • 11 functional groups
  • Bit hydraulics calculations
  • Hole cleaning analysis
  • Well control solutions
  • Unit conversion tools
  • Tank capacity calculations
Features
Read full description

Do you want to solve drilling engineering problems in seconds? It is easier than ever before to use Dr. DE Lite mobile app, a must-have toolbox app that includes a substantial collection of functions for every drilling engineer and technician. Bid farewell to flipping through handbooks, textbooks, standards, etc. for answers. This free app, sophisticated yet simple to use, not only saves time and money, but also makes your engineering and sales efforts more reliable and professional. The Dr. DE Lite app is equipped with 29 functions that are divided into 11 groups. --Bit Hydraulics --Casing Centralizer --Hole Cleaning --Hydraulics --Mud Additives --Pipe --Pump --Tank Capacity --Volume and Capacity --Well Control --Unit Conversion

About

Driller's Method

This application assists with oil well control calculations using the Driller's Method, particularly for kick occurrences on floating and landing rigs. It's a tool for oilfield professionals and students to understand and apply these essential calculations.

Highlights
  • Driller's Method calculations
  • Kick occurrence management
  • Floating platform support
  • Landing rig application
  • Kill sheet data import
  • Educational tool
Features
Read full description

This app is designed for both iPhone and iPad. This application uses the basic calculations of the Driller's Method to control oil wells after the occurrence of kick during drilling operations on floating platforms and landing rigs. It is an useful tool to import data files to fill kill sheets from our apps: (Driling Hydraulics, Drilling Simulator 1, 2 and 3, MPD Simulator, Kick Game, Kick Tolerance, LOT Simulator and Well Control Simulator 1 and 2) available for sale in our portfolio on the App Store. It is can be applied on the oilfield (see Disclaimer) and also to help in the understanding of the Driller's Method. This app was developed based on existing spreadsheets. There is no comparison with any other software. Our goal was to create a low-cost application with the help of experts to share with drilling engineers, technicians, drillers, students and teachers of drilling engineering. There is no intention to replace the professional softwares. You can contribute with suggestions for improvements, correcting the translation to english, reporting bugs and spreading it to your friends. Thanks DISCLAIMER: These tools & materials are provided 'as is' without warranties of any kind, express or implied. Please verify the tools provided by this application by yourself before you use them. Ensure you understand the impact of using these tools. Any use you choose to make of these tools & materials is undertaken by you entirely at your own risk.

Screenshots

Dr. DE4 screens
Driller's Method4 screens

Verdict

The call

The clearest difference is review sentiment: Dr. DE at 56% against Driller's Method's 0%. Dr. DE also leads on price (Free vs $19.99) and update cadence (every 3 months vs every 16 months). On ads, in-app purchases, device support and iOS requirement 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

Dr. DE is free to download; Driller's Method costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Dr. DE ships an update every 3 months, Driller's Method every 16 months. The most recent releases landed on July 18, 2026 and September 2, 2026 respectively.

Scorecard4 real differences · 6 level
Dr. DE versus Driller's Method: the parameters behind the verdict, then further details
ParameterDr. DEDriller's Method
PriceFree — better$19.99
Rating4.5 (16 ratings) — better—
Positive reviews55.6% of reviews — better0.0% of reviews
Number of ratings16 — better—
Update frequencyEvery 3 months — betterEvery 16 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.6
Further details — not scored
Size33 MB19 MB
Age rating17+4+
DeveloperPegasus Vertex, Inc.Carlos Moura

Customer experience

Dr. DE

All ratings16 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews9 reviews
Positive55.6%
Neutral0.0%
Negative44.4%

Driller's Method

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Dr. DE

No in-app purchases

None

Driller's Method

No in-app purchases

Questions

Is Dr. DE free?
Dr. DE is free to download, with no in-app purchases.
Is Driller's Method free?
Driller's Method costs $19.99, with no in-app purchases.
Do Dr. DE or Driller's Method have ads?
Neither Dr. DE nor Driller's Method shows ads.
Which is updated more often, Dr. DE or Driller's Method?
Dr. DE ships an update every 3 months, and Driller's Method every 16 months. Most recently, Dr. DE was updated on July 18, 2026 and Driller's Method on September 2, 2026.

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