Dr. DE vs DDToolsPro
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
Read full descriptionHide full description
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
DDToolsPro
Read full descriptionHide full description
This tool will help directional drillers and company men with day to day calculations for standard directional drilling and a segmented (survey) tool for curves! Terms of use : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: Dr. DE at Free against DDToolsPro's $9.99. Dr. DE also leads on in-app purchases (none vs 2) and iOS requirement (15.6 vs 18.2). On update cadence, ads 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
Dr. DE is free to download; DDToolsPro costs $9.99 up front. DDToolsPro sells 2 in-app purchases, starting at $12.99 per month. Dr. DE asks for nothing beyond the download.
Dr. DE ships an update every 3 months, DDToolsPro every 2 months. The most recent releases landed on July 18, 2026 and September 14, 2026 respectively.
| Parameter | Dr. DE | DDToolsPro |
|---|---|---|
| Price | Free — better | $9.99 |
| Rating | 4.5 (16 ratings) — better | — |
| Positive reviews | 55.6% of reviews | — |
| Number of ratings | 16 — better | — |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 18.2 |
| Further details — not scored | ||
| Size | 33 MB | 8 MB |
| Age rating | 17+ | 4+ |
| Developer | Pegasus Vertex, Inc. | Michael Blake |
In-app purchases
Dr. DE
No in-app purchases
DDToolsPro
- DD Tools Pro Unlock - Monthly$12.991 Month
- DD Tools Pro Unlock - Annual$129.991 Year
Questions
Is Dr. DE free?
Is DDToolsPro free?
Do Dr. DE or DDToolsPro have ads?
Which is updated more often, Dr. DE or DDToolsPro?
Other comparisons
