Dyna vs Volume in Pipe
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dyna
Explore and search detailed specifications for motor power sections, rotors, and stators. Find the ideal drilling solution by filtering based on tool size, lobes, stages, and revolutions per gallon. Save favorites and connect with experts.
- Browse power section spec sheets
- Search by tool size, lobes, stages, and RPM
- Identify optimal drilling solutions
- Save commonly used spec sheets
- Connect with regional experts
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Dyna-Drill offers a broad range of motor power sections, rotors, and stators that are designed and manufactured to withstand the most demanding drilling applications. The Dyna-Drill Power Sections app enables you to browse and search power section spec sheets to identify the best solution for your specific needs. You can search by tool size, number of lobes, stages, and revolutions per gallon to ensure you have the right technology for your application. The app also enables you to save your most commonly used spec sheets under the “Favorites" tab for easy access. In addition, by using the “Contact” button, you will be able to connect with a Dyna-Drill expert in your region.
Volume in Pipe
Quickly estimate the gas volume within pipes, launchers, or vessels. Input operating conditions and pipe size for an approximate volume calculation. This tool is designed for rapid field estimates.
- Estimate gas volume
- Input operating conditions
- Select pipe size
- Quick field estimates
- Supports iPhone
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Volume in Pipe (V.i.P.) is a simple, efficient tool for estimating the gas volume contained in a pipe, pig launcher/receiver, or vessel. Enter basic operating conditions, select a pipe size, and the app provides an approximate volume based on general assumptions. This tool is intended for quick field estimates only. It does not incorporate detailed gas analysis, which may significantly affect calculated volumes.
Screenshots
Verdict
The clearest difference is device support: Dyna at 3 against Volume in Pipe's 1. Dyna also leads on ratings volume (3 vs 1) and iOS requirement (8.0 vs 16.6). On price, rating, update cadence and ads 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.
On the App Store both sit at effectively the same score — 5.0 for Dyna against 5.0 for Volume in Pipe. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
Dyna ships an update every 19 months, Volume in Pipe every 26 months. Both last shipped on October 6, 2026.
| Parameter | Dyna | Volume in Pipe |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (1 ratings) |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 19 months — better | Every 26 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 8.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 26 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Schlumberger Technology Corporation | Kelly Gayneaux |
Customer experience
Dyna
Volume in Pipe
In-app purchases
Dyna
No in-app purchases
Volume in Pipe
No in-app purchases
