Comparison

MPD Simulator vs Petroleum Dictionary

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

MPD Simulator

Features
Read full description

This app is designed for both iPhone and iPad. This application provides practical simulations of the Dynamic Well Control on the Managed Pressure Drilling (MPD) operations in the oil field services. With Managed Pressure Drilling (MPD), when kicks occur, they are typically smaller, contained more quickly, and, in some cases, they may be circulated out through MPD equipment without drilling or circulation interruption. This simulator is the new project based on the Drilling Simulators on our portfolio, but specifically for dynamic well control on onshore and offshore operations (deepwater). MPD System on this simulator: 1. RCD – Rotating Control Device 2. Annular Preventer (or Drill String Isolation Tool – DSIT) 3. Automatic Choke for CBHP (Constant Bottom Hole Pressure), CDP (Constant Drill Pipe), CBP (Constant BackPressure or Choke Pressure) 4. RPD – Rig Pump Diverter 5. BPP – Back Pressure Pump Additional features: 1. Driller Interface based on Pressure Gauge, Weight Indicator, Rotary Torque gauge and Geolograph. 2. Choke Interface based on Digital Panel. 3. Graph in full screen (with background color in black or white) for analysis. 4. Special screen layout optimised for all iPhone and iPad models. 5. (iPad version) Three codes (admin, instructor, student) to view the gas into the borehole, the pressure at bottom, at shoe and at bop and to enable / disable the Lag Time (by adjusting the choke to change the kill pressure and drill pipe pressure, etc). (Attention: The Initial codes: "0000") NOTE: This simulator works with Auto/Manual Control on MPD Choke ONLY. For well control based on conventional rig choke panel, please buy the "Drilling Simulator 3" also available on our portfolio on the App Store. Thanks. Other features also available: A graphical very useful tool for training of roughnecks, derrickmen, drillers, toolpusher, drilling engineers and students in the well control procedures. - Ability to drilling, kick detection, shut-in, stabilisation of pressures; - Interactive System: no pre-set methods; - Ability to apply control methods: Driller's method, wait and weight, dynamic volumetric and static volumetric (lubricate and bleed); - Hydraulics and Hydrostatics; - Behavior of the kick; - Applied with subsea stack or surface stack; - Set well with until 4 sections: riser, casing, liner, open hole ; - Set Drillstring with drillpipe1, drillpipe2, heavy weight, drillcollar1, drillcollar2 Kick Model in this simulator: The model assumes that the kick starts as a single bubble at the bottom of the hole and migrates upward as a single bubble from the bottom to the surface. In underbalanced condition (BHP

About

Petroleum Dictionary

This app provides a comprehensive offline dictionary for petroleum engineering terms, including definitions, equations, formulas, and quizzes. It offers features like speech-to-text, text-to-speech, and the ability to save favorites and view search history. It's designed for students and professionals in the oil and gas industry.

Highlights
  • Offline access to over 5000 petroleum terms
  • Includes engineering equations and formulas
  • Interactive quizzes to test knowledge
  • Speech-to-text and text-to-speech functionality
  • Save favorite terms and view search history
  • Easy-to-use interface
Features
Read full description

**** Petroleum Dictionary Offline ***** Welcome to Petroleum Dictionary Offline - the easiest way to learn Petroleum Terms fastly within your iPhones and iPads. Petroleum Dictionary is a free learning tool for those who work in the oil and gas industry. It is helpful to students and professionals who are in this industry, as well those who have years of experience. This tool provides an opportunity to understand all aspects and terms related to petrol, oil and gas. Petroleum engineering dictionary includes a dictionary that allows you to search a word, to find a definition and get an easy pictorial view of that particular item, and get a better understanding of it. With more than 5000 petroleum engineering Terms and lots of Engineering Equations and Formulas, this petroleum Learning App will sure built your basics of oil industry. For quick and SMART learning this petroleum Dictionary has a Quick Guide of most used formulas and equations. This Dictionary is full of numerous petroleum Quizzes to boost up your knowledge and challenge your learning. *********Features ******** - We have a very Easy Interface to use, so everyone can use it simply without watching any tutorial. We worked hard to make everything easier to you. In the main screen, you will be able to see all words. There, you can type the Petroleum terms and word that you are looking for and we will take care of finding the meanings of Petroleum Terms. - Start using our Petroleum Dictionary Offline app without creating an account, so, download it now and start using it within a few seconds. - Petroleum Dictionary Offline provide speech to Text functionality in to searching words. - Petroleum Dictionary Offline is free. No other hidden charges. - We will keep you updated with latest words in this Offline Petroleum Dictionary app. - It's Offline. So user need not any internet connection more. - Perfect app for travellers! This, will help you to learn and talk Petroleum Terms with people easily! - We developed a new quiz inside Petroleum dictionary Offline! To take the quiz, you can easily tap the option icon in the top left side of the screen and choose quiz. Now, you will see a word in the screen with 4 answers, you will have to tap the answer that you think its right to see if it’s the good choice or not. - Want to save a word meaning in the favourites? Tap the heart button and we will add this word automatically in your favourites. You can easily access to it anytime within the favourites choice in the options menu. - We have a integrated a text to speech feature to let you hear the Petroleum Terms that you are looking for. - Share any word and its meaning easily with your friends on other social media apps with the share word button in the bottom right side of the screen. - We will automatically save any word that you searched. You can easily access to it later within the history choice in the options menu. *Premium Subscription Plans* • Weekly Pro Plan: $1.99/month • Monthly Pro Plan: $4.99/month • Yearly Pro Plan: $29.99/year • Lifetime Access: $39.99 (one-time payment) Unlock Premium Features with a Subscription: • Unlimited Translations • Unlimited Word Searching • 100% Ad-Free Experience Subscription Terms: • Payment will be charged to your Apple ID account upon confirmation of purchase. • Subscriptions automatically renew unless canceled at least 24 hours before the end of the current billing period. • You can manage or cancel your subscription anytime by going to: Settings > Apple ID > Subscriptions. • Any unused portion of a free trial will be forfeited when you purchase a subscription. Download Now & Simplify Your Life! Privacy Policy: https://www.thedictionaryapps.com/dictionary/pvpolicy.html
 Terms of Use: https://www.thedictionaryapps.com/dictionary/terms.html
 EULA: https://www.thedictionaryapps.com/dictionary/eula.html For support or inquiries, please contact: puju.delvdiya@gmail.com

Screenshots

MPD Simulator4 screens
Petroleum Dictionary4 screens

Verdict

The call

The clearest difference is price: Petroleum Dictionary at Free against MPD Simulator's $49.99. MPD Simulator's advantage is in-app purchases (none vs 5) and ads (none vs shown). On 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

CostPrice · In-app purchases · Ads · Monetization

Petroleum Dictionary is free to download; MPD Simulator costs $49.99 up front. Petroleum Dictionary sells 5 in-app purchases, starting at $1.99 per 7 days. MPD Simulator asks for nothing beyond the download.

UpkeepUpdate frequency

MPD Simulator ships an update every 4 months, Petroleum Dictionary every 9 months. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.

Scorecard5 real differences · 5 level
MPD Simulator versus Petroleum Dictionary: the parameters behind the verdict, then further details
ParameterMPD SimulatorPetroleum Dictionary
Price$49.99Free — better
Rating—4.4 (9 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—9 — better
Update frequencyEvery 4 months — betterEvery 9 months
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.6
Further details — not scored
Size29 MB13 MB
Age rating4+4+
DeveloperCarlos MouraPuju Dekivadiya

In-app purchases

None

MPD Simulator

No in-app purchases

5 purchases

Petroleum Dictionary

Subscriptions3
  • Weekly Pro Plan$1.997 Days
  • Monthly Pro Plan$4.991 Month
  • Yearly Pro Plan$29.991 Year
One-time2
  • Remove Ads$9.99
  • Lifetime Access$39.99

Questions

Is MPD Simulator free?
MPD Simulator costs $49.99, with no in-app purchases.
Is Petroleum Dictionary free?
Petroleum Dictionary is free to download, with in-app purchases available.
Do MPD Simulator or Petroleum Dictionary have ads?
Petroleum Dictionary shows ads; MPD Simulator does not.
Which is updated more often, MPD Simulator or Petroleum Dictionary?
MPD Simulator ships an update every 4 months, and Petroleum Dictionary every 9 months. Most recently, MPD Simulator was updated on October 2, 2026 and Petroleum Dictionary on September 30, 2026.

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