3D Interpolation vs Drillstring Toolbox Premium
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
3D Interpolation
Calculate key directional drilling parameters like TVD, coordinates, and displacement. This tool aids drilling engineers and students in oil well directional drilling by interpolating survey data.
- Calculate TVD, N/S, E/W coordinates
- Determine Horizontal Displacement
- Calculate Dog-Leg Severity
- Measure Build-Up Rate
- Calculate Turn Rate
- Interpolate parameters between survey stations
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The 3D Interpolation provides an useful tool to calculate projections TVD (True Vertical Depth), N/S and E/W coordinates, Horizontal Displacement, Dog-Leg Severity, Build-Up Rate (Angle Rate, Intensity) and Turn Rate and also the Interpolation of these parameters between two well planning sections or survey stations defined by Measured Depth, Inclination and Azimuth as entry parameters in the directional drilling of oil wells. Calculations Method: Minimum Curvature Length Units: Foot and Meter (Metre) Intensity Units: degree/100ft, degree/10m, degree/30m and degree/100m 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. You can contribute with suggestions for improvements, correcting the translation to english, reporting bugs and sharing it with 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 you own risk.
Drillstring Toolbox Premium
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The DS-1 team has created this Drillstring Toolbox Premium! It's an advance calculator that does everything the free Drillstring toolbox does and more! With it you can find: - API-recommended makeup torques for drill-stem connections with whatever sizes you want to plug in. - The "T4" (maximum tensile capacity) torque for those connections, too. - Adjusted makeup torques when you want to optimize away from the standard numbers. - Tensile and torsion capacities for standard, thick-walled, and custom drill pipe tubes. - A combined load curve for whatever combination you come up with, which you can email to your colleagues. - Recommended makeup torques for many popular proprietary connections.
Screenshots
Verdict
The clearest difference is price: 3D Interpolation at $9.99 against Drillstring Toolbox Premium's $24.99. 3D Interpolation also leads on iOS requirement (12.0 vs 14.0). On update cadence, ads, in-app purchases and device support 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
3D Interpolation costs $9.99 and Drillstring Toolbox Premium $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.
3D Interpolation ships an update every 37 months, Drillstring Toolbox Premium every 24 months. The most recent releases landed on September 2, 2026 and September 20, 2026 respectively.
| Parameter | 3D Interpolation | Drillstring Toolbox Premium |
|---|---|---|
| Price | $9.99 — better | $24.99 |
| Positive reviews | 0.0% of reviews | — |
| Update frequency | Every 37 months | Every 24 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 7 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Carlos Moura | Bureau Veritas North America, Inc. |
In-app purchases
3D Interpolation
No in-app purchases
Drillstring Toolbox Premium
No in-app purchases
Questions
Is 3D Interpolation free?
Is Drillstring Toolbox Premium free?
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