Dr. DE vs NESS Programmer
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
NESS Programmer
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The NESS Programmer allows users to easily configure the NESS downhole tool in a matter of seconds using Bluetooth communication, avoiding the need to use dip switches on the tool's controller board. Avalon Research's NESS downhole tool is a Non-Explosive Setting System. This proprietary, self-contained system runs on battery power and hydraulic fluid. It is lightweight, simple, and incredibly inexpensive to operate. It requires minimal redress and can be used for multiple runs with minimal downtime. Electric power is provided by the onboard re-chargeable Ni-Cad battery pack. Run in tandem with a modified multi-stage setting tool, the NESS is unaffected by wellbore pressure. The hydraulic pump is capable of generating 15,000 psi of continuous hydraulic pressure. The pump uses a specialty heat transfer fluid to provide hydraulic pressure and does not operate on wellbore fluids to prevent contamination. The electronics are encased in an insulated thermal flask and the system is designed to withstand up to 400F for 2 hours. Primary Applications: • Off-shore fields requiring heli-deployed non-explosive setting tools. • High-risk areas where transporting explosives is prohibited, restricted, or unwise. • Operations where multiple well completions require several runs per day. • Time-sensitive jobs that can’t depend on the logistic deployment of explosives, or the availability of a blasting tech. For more information on the NESS visit our website at https://wirelinetools.com
Screenshots
Verdict
The clearest difference is update cadence: Dr. DE at every 3 months against NESS Programmer's every 21 months. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Dr. DE ships an update every 3 months, NESS Programmer every 21 months. The most recent releases landed on July 18, 2026 and September 10, 2026 respectively.
| Parameter | Dr. DE | NESS Programmer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (16 ratings) — better | — |
| Positive reviews | 55.6% of reviews | — |
| Number of ratings | 16 — better | — |
| Update frequency | Every 3 months — better | Every 21 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 33 MB | 1 MB |
| Age rating | 17+ | 4+ |
| Developer | Pegasus Vertex, Inc. | Iain Simpson |
In-app purchases
Dr. DE
No in-app purchases
NESS Programmer
No in-app purchases
Questions
Is Dr. DE free?
Is NESS Programmer free?
Do Dr. DE or NESS Programmer have ads?
Which is updated more often, Dr. DE or NESS Programmer?
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