Comparison

Petroleum Dictionary vs PetroMaster

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

Head to head
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

About

PetroMaster

Features
Read full description

Petro Master Academy is an advanced LMS platform built for modern learning. Access online courses, training programs, certifications, and interactive learning materials in one easy-to-use app.

Screenshots

Petroleum Dictionary4 screens
PetroMaster4 screens

Verdict

The call

The clearest difference is in-app purchases: PetroMaster at none against Petroleum Dictionary's 5. PetroMaster also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 9 months). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Petroleum Dictionary sells 5 in-app purchases, starting at $1.99 per 7 days. PetroMaster asks for nothing beyond the download.

UpkeepUpdate frequency

Petroleum Dictionary ships an update every 9 months, PetroMaster every 2 weeks. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
Petroleum Dictionary versus PetroMaster: the parameters behind the verdict, then further details
ParameterPetroleum DictionaryPetroMaster
PriceFreeFree
Rating4.4 (9 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings9 — better—
Update frequencyEvery 9 monthsEvery 2 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size13 MB41 MB
Age rating4+4+
DeveloperPuju DekivadiyaALP Turnkey Solutions PVT LTD

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
None

PetroMaster

No in-app purchases

Questions

Is Petroleum Dictionary free?
Petroleum Dictionary is free to download, with in-app purchases available.
Is PetroMaster free?
PetroMaster is free to download, with no in-app purchases.
Do Petroleum Dictionary or PetroMaster have ads?
Petroleum Dictionary shows ads; PetroMaster does not.
Which is updated more often, Petroleum Dictionary or PetroMaster?
Petroleum Dictionary ships an update every 9 months, and PetroMaster every 2 weeks. Most recently, Petroleum Dictionary was updated on November 3, 2026 and PetroMaster on October 25, 2026.

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