Drilling Engineering vs Drillstring Toolbox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Drilling Engineering
This app provides essential tools for oil and gas professionals involved in drilling operations. It offers unit conversions, a comprehensive drilling calculator, API tubular data, stuck pipe problem identification, and well control calculations.
- Petroleum Unit Conversion
- Drilling Calculator (90+ calculations)
- API Tubular Data
- Stuck Pipe Problem Identification
- Well Control Kill Sheet
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"Drilling Engineering" mobile application is provided by Drilling UTC of Pertamina for anyone who works and or engaged in oil and gas activity, particularly in planning and drilling operations. "Drilling Engineering" mobile application include: 1. Petroleum Unit Conversion to convert the units are often used in drilling operations, including the Temperature, Pressure , Density , depth , and other parameters. 2. Drilling Calculator consists of approximately 90 base drilling calculations, both in drilling operations and design. 3. API Tubular Data provides tubular data base such as casing, tubing, and drill pipe, give a quick access to pipe dimension and strength. 4. Stuck Pipe Problem Identification is based on Texas Drilling Associates Stuck pipe logics. Analyze the cause of stuck pipe, could be occurred because of Pack-off/bridge, Wellbore Geometry and Differential Sticking. 5. Well Control Kill Sheet is an IADC based calculation to stop the flow of an influx from formation using wait and weight method.
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.
- Drill-stem load capacity calculation
- API connection selection
- Makeup torque calculation
- Tensile capacity calculation
- Drill pipe tube capacities
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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!
Screenshots
Verdict
The clearest difference is review sentiment: Drillstring Toolbox at 100% against Drilling Engineering's 50%. Drilling Engineering's advantage is rating (3.8 vs 3.3) and ratings volume (19 vs 3). On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Drilling Engineering holds the better App Store score, 3.8 against 3.3. That said, the two scores are not equally well evidenced: Drilling Engineering has 19 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 50% of Drilling Engineering's written reviews are positive against 100% of Drillstring Toolbox's, so the app with the better star average is not the one people write more warmly about.
Drilling Engineering ships an update every 42 months, Drillstring Toolbox every 39 months. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.
| Parameter | Drilling Engineering | Drillstring Toolbox |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (19 ratings) — better | 3.3 (3 ratings) |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 19 — better | 3 |
| Update frequency | Every 42 months | Every 39 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 7.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 8 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | PT. Pertamina (Persero) | Bureau Veritas North America, Inc. |
Customer experience
Drilling Engineering
Drillstring Toolbox
In-app purchases
Drilling Engineering
No in-app purchases
Drillstring Toolbox
No in-app purchases
Questions
Is Drilling Engineering free?
Is Drillstring Toolbox free?
Which has better reviews, Drilling Engineering or Drillstring Toolbox?
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Which is updated more often, Drilling Engineering or Drillstring Toolbox?
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