Comparison

Drillstring Toolbox vs Wait and Weight Worksheets

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

Head to head
About

Drillstring Toolbox

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.

Highlights
  • Drill-stem load capacity calculation
  • API connection selection
  • Makeup torque calculation
  • Tensile capacity calculation
  • Drill pipe tube capacities
Features
Read full description

Drillstring Toolbox is a free calculator from Standard DS-1 that gives you the drill-stem load capacities you need! You can choose an API connection (along with the size you're interested in) to find its recommended makeup torque and tensile capacity. Tap the "Tube" tab to find the tensile and torsion capacities for drill pipe tubes as well!

About

Wait and Weight Worksheets

Features
Read full description

This app utilizes standardized Worksheets based on the Wait and Weight 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 Wait and Weight 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.

Screenshots

Drillstring Toolbox2 screens

Verdict

The call

The clearest difference is price: Drillstring Toolbox at Free against Wait and Weight Worksheets's $19.99. Drillstring Toolbox also leads on device support (3 vs 1). Wait and Weight Worksheets's advantage is update cadence (every 3 months vs every 39 months). On ads, in-app purchases 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

Drillstring Toolbox is free to download; Wait and Weight Worksheets costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Drillstring Toolbox ships an update every 39 months, Wait and Weight Worksheets every 3 months. The most recent releases landed on September 5, 2026 and September 18, 2026 respectively.

Scorecard3 real differences · 7 level
Drillstring Toolbox versus Wait and Weight Worksheets: the parameters behind the verdict, then further details
ParameterDrillstring ToolboxWait and Weight Worksheets
PriceFree — better$19.99
Rating3.3 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 39 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS14.0 — better15.6
Further details — not scored
Size1 MB10 MB
Age rating4+4+
DeveloperBureau Veritas North America, Inc.Carlos Moura

In-app purchases

None

Drillstring Toolbox

No in-app purchases

None

Wait and Weight Worksheets

No in-app purchases

Questions

Is Drillstring Toolbox free?
Drillstring Toolbox is free to download, with no in-app purchases.
Is Wait and Weight Worksheets free?
Wait and Weight Worksheets costs $19.99, with no in-app purchases.
Do Drillstring Toolbox or Wait and Weight Worksheets have ads?
Neither Drillstring Toolbox nor Wait and Weight Worksheets shows ads.
Which is updated more often, Drillstring Toolbox or Wait and Weight Worksheets?
Drillstring Toolbox ships an update every 39 months, and Wait and Weight Worksheets every 3 months. Most recently, Drillstring Toolbox was updated on September 5, 2026 and Wait and Weight Worksheets on September 18, 2026.

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