Dr. DE vs CPC Utility
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dr. DE
This mobile toolbox simplifies complex drilling engineering calculations. It offers a comprehensive suite of 29 functions across 11 categories, eliminating the need for handbooks and improving efficiency for engineers and technicians.
- 29 drilling engineering functions
- 11 functional groups
- Bit hydraulics calculations
- Hole cleaning analysis
- Well control solutions
- Unit conversion tools
- Tank capacity calculations
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Do you want to solve drilling engineering problems in seconds? It is easier than ever before to use Dr. DE Lite mobile app, a must-have toolbox app that includes a substantial collection of functions for every drilling engineer and technician. Bid farewell to flipping through handbooks, textbooks, standards, etc. for answers. This free app, sophisticated yet simple to use, not only saves time and money, but also makes your engineering and sales efforts more reliable and professional. The Dr. DE Lite app is equipped with 29 functions that are divided into 11 groups. --Bit Hydraulics --Casing Centralizer --Hole Cleaning --Hydraulics --Mud Additives --Pipe --Pump --Tank Capacity --Volume and Capacity --Well Control --Unit Conversion
CPC Utility
This utility app provides instant contact with well control services for emergencies. It also includes helpful calculators and lookup tables for casing, flange, coiled tubing, and nitrogen volume.
- 24/7 Well Control callout
- Casing information lookup
- Flange data
- Coiled tubing calculator
- Nitrogen volume calculator
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CPC Utility is the quickest way to get in touch with CUDD Well Control Services in the event of a well control incident, providing a 24 hr phone response with a live engineer at the click of a button. In addition to Well Control callout, the app also provides several useful calculators and lookup tables. * Casing Info - Sizes and Ratings * Flange Info - Bore Size, Gasket, Hole Pattern... * Coiled Tubing Calculator * Nitrogen Volume Calculator - Get SCF / BBL at specified temperature and pressure
Screenshots
Verdict
The clearest difference is review sentiment: CPC Utility at 100% against Dr. DE's 56%. CPC Utility also leads on rating (5.0 vs 4.5) and iOS requirement (13.0 vs 15.6). Dr. DE's advantage is update cadence (every 3 months vs every 12 months) and ratings volume (16 vs 3). On price, ads, in-app purchases and monetization model 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.
CPC Utility holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Dr. DE has 16 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 56% of Dr. DE's written reviews are positive against 100% of CPC Utility's.
Dr. DE ships an update every 3 months, CPC Utility every 12 months. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.
| Parameter | Dr. DE | CPC Utility |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (16 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 55.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 16 — better | 3 |
| Update frequency | Every 3 months — better | Every 12 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 33 MB | 27 MB |
| Age rating | 17+ | 4+ |
| Developer | Pegasus Vertex, Inc. | Thru Tubing Solutions Inc. |
Customer experience
Dr. DE
CPC Utility
In-app purchases
Dr. DE
No in-app purchases
CPC Utility
No in-app purchases
