Comparison

Driller's Method Worksheets vs Workover Assistant

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

Head to head
About

Driller's Method Worksheets

Features
Read full description

This app utilizes standardized Worksheets based on the Driller's method for well control operations following a kick. It supports both floating rigs with subsea stacks and surface stack operations. Designed for field applications and instructional use, it helps engineers and rig teams deepen their understanding of the Driller's method. Key Features & Integration * Fully compatible with field workflows and training scenarios. * Seamlessly import data files to populate kill sheets directly from our suite of well control apps: Drilling Hydraulics, Drilling Simulator 1, 2 & 3, Kick Game, Kick Tolerance, LOT Simulator, MPD Simulator, Well Control Methods, and Well Control Simulator 1 & 2.
 Our Mission Developed alongside industry experts using established spreadsheets, this app provides an accessible, cost-effective tool for drilling engineers, toolpushers, drillers, technicians, students, and instructors. It is designed as a practical field utility and learning companion, not a replacement for full-scale commercial engineering software. Feedback & Community We continuously improve our tools. Feel free to share feedback, report bugs, suggest translation refinements, or share this app with your colleagues. Thanks DISCLAIMER: These tools and materials are provided "as is" and "as available," without warranties of any kind, express or implied. You are solely responsible for verifying the accuracy and appropriateness of any calculations or data generated by this application prior to use. Any reliance on or use of these tools is strictly at your own risk. In no event shall the developer be liable for any direct, indirect, incidental, or consequential damages resulting from the use or inability to use this application.

About

Workover Assistant

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.

Highlights
  • Hydrostatic pressure calculations
  • Internal capacity calculations
  • Oil and gas well workover tools
  • Rig site and office utility
  • Accurate field calculations
Features
Read full description

Workover Assistant is designed to help field personnel perform quick, accurate calculations related to oil and gas well workovers. It includes tools for hydrostatic pressure, internal capacity, and other common workover functions—making it a handy companion for the rig site or office.

Screenshots

Workover Assistant4 screens

Verdict

The call

The clearest difference is price: Workover Assistant at Free against Driller's Method Worksheets's $19.99. Driller's Method Worksheets's advantage is update cadence (every 4 months vs every 58 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

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

UpkeepUpdate frequency

Driller's Method Worksheets ships an update every 4 months, Workover Assistant every 58 months. The most recent releases landed on September 9, 2026 and June 5, 2026 respectively.

Scorecard2 real differences · 7 level
Driller's Method Worksheets versus Workover Assistant: the parameters behind the verdict, then further details
ParameterDriller's Method WorksheetsWorkover Assistant
Price$19.99Free — better
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 4 months — betterEvery 58 months
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPadiPhone, iPad — better
Requires iOS15.6 — better16.6
Further details — not scored
Size10 MB3 MB
Age rating4+4+
DeveloperCarlos MouraKelly Gayneaux

In-app purchases

None

Driller's Method Worksheets

No in-app purchases

None

Workover Assistant

No in-app purchases

Questions

Is Driller's Method Worksheets free?
Driller's Method Worksheets costs $19.99, with no in-app purchases.
Is Workover Assistant free?
Workover Assistant is free to download, with no in-app purchases.
Do Driller's Method Worksheets or Workover Assistant have ads?
Neither Driller's Method Worksheets nor Workover Assistant shows ads.
Which is updated more often, Driller's Method Worksheets or Workover Assistant?
Driller's Method Worksheets ships an update every 4 months, and Workover Assistant every 58 months. Most recently, Driller's Method Worksheets was updated on September 9, 2026 and Workover Assistant on June 5, 2026.

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