Comparison

VisualMind vs Petroleum Engineering+

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

Head to head
About

VisualMind

This app helps you learn faster by transforming complex topics into interactive mind maps or conversational chats. Choose your preferred learning style to absorb and retain information more effectively.

Highlights
  • AI-driven summaries
  • Mind map or chat learning formats
  • Curated learning prompts
  • Interactive learning experience
  • Personalized AI helper
  • YouTube video summarization
Features
Read full description

Unleash Your Potential with VisualMind! Transform the Way You Learn VisualMind is your ultimate tool for mastering new topics through personalized learning experiences. Whether you prefer engaging with interactive mind maps or having conversational chats, VisualMind adapts to your learning style, helping you absorb and retain information faster and more effectively. Key Features: Learn 10x Faster Supercharge your learning with AI-driven summaries. VisualMind breaks down complex topics into either visual mind maps or structured chat conversations—whichever format suits your needs. Flexible Learning Styles: Mind Map or Chat Whether you love visualizing information or prefer a more conversational approach, VisualMind gives you the option to either build mind maps or engage in interactive chats on any topic. Curated Learning Prompts Access a wide range of curated prompts across multiple subjects like marketing, history, and more. Choose your preferred format—mind map or chat—and dive deep into any area of interest. Interactive Learning Experience Engage with your content dynamically. Ask follow-up questions, explore related topics, and either chat with your AI assistant or explore visual mind maps to create a personalized, comprehensive learning experience. Personalized AI Helper Get tailored assistance for any topic. VisualMind’s AI Helper guides you with step-by-step solutions, whether you’re building a mind map or having a conversation to explore the subject in-depth. Learn from Any YouTube Video Instantly create summaries from YouTube videos. VisualMind allows you to either generate a detailed mind map or chat-based summary of the video’s content, giving you multiple ways to engage with the material. Download VisualMind VisualMind is more than just a tool for mind mapping or chatting—it's a versatile learning platform tailored to your unique preferences. Whether you’re a student, professional, or lifelong learner, VisualMind helps you achieve your educational goals with ease. For support, contact: support@visualmind.app FOR MORE INFORMATION: https://www.visualmind.app/terms.html https://www.visualmind.app/privacy.html With VisualMind, you choose how you learn—mind map or chat!

About

Petroleum Engineering+

Master petroleum engineering concepts through engaging quizzes covering a wide range of topics from geology to production. Ideal for students and professionals seeking to enhance their knowledge and skills in the oil and gas industry.

Highlights
  • Comprehensive quiz coverage
  • Topics from geology to production
  • Boost knowledge and skills
  • Engaging learning experience
  • Suitable for students and professionals
Features
Read full description

Master Petroleum Engineering with Fun and Engaging Quizzes! Dive into the world of Petroleum Engineering with our comprehensive quiz app, designed to boost your knowledge, confidence, and skills. Whether you're a student, practitioner, or just exploring the field, this app is your ultimate companion for learning and growth. Topics Covered: Introduction to Petroleum Engineering: -History and evolution of the petroleum industry", -Overview of upstream, midstream, and downstream sectors -Role of petroleum engineers Petroleum Geology and Geophysics: - Origin and accumulation of hydrocarbons - Types of reservoir rocks and cap rocks - Structural and stratigraphic traps - Seismic methods and interpretation - Geological mapping and subsurface modeling Drilling Engineering: - Types of drilling rigs and their components - Drilling fluids and their properties - Casing design and cementing practices - Directional and horizontal drilling - Drill string design and bit selection Reservoir Engineering Fundamentals: - Reservoir fluid properties (PVT analysis) - Porosity and permeability measurement - Fluid saturation and capillary pressure - Material balance and reservoir drive mechanisms - Reservoir characterization and classification Well Logging and Formation Evaluation: - Types of logging tools (SP, gamma ray, resistivity) - Nuclear and acoustic logging techniques - Interpretation of log data for reservoir evaluation - Core sampling and laboratory analysis - Formation testing and pressure transient analysis Production Engineering: - Well completion techniques (open hole, cased hole) - Artificial lift systems (ESP, gas lift, rod pumps) - Well stimulation (acidizing, hydraulic fracturing) - Flow assurance and sand control - Production monitoring and optimization Enhanced Oil Recovery (EOR) Techniques: - Primary, secondary, and tertiary recovery concepts - Thermal methods (steam flooding, in-situ combustion) - Gas injection (CO₂, nitrogen, miscible flooding) - Chemical EOR (polymer, surfactant, alkaline) - Screening criteria and field implementation Natural Gas Engineering: - Gas properties and phase behavior - Gas reservoir performance and deliverability - Gas production and compression systems - Gas processing and dehydration - Liquefied natural gas (LNG) and gas monetization Petroleum Refining and Processing: - Overview of refining processes - Atmospheric and vacuum distillation - Conversion processes (cracking, reforming) - Product blending and specifications - Emission control and waste management Surface Facilities and Field Processing: - Field processing of oil, gas, and water - Separation equipment and design - Flowlines, pipelines, and gathering systems - Surface facility layout and operation - Maintenance and integrity management Reservoir Simulation and Modeling: Formation Damage and Wellbore Integrity: Health, Safety, and Environmental Management (HSE): Petroleum Economics and Project Evaluation: Features You'll Love: - Adaptive Quizzes: Questions tailored to your skill level, ensuring a personalized learning experience. - Detailed Explanations: Learn as you go with in-depth answers and references. - Timed Challenges: Test your speed and accuracy under time pressure for an extra thrill. - Progress Tracking: Keep tabs on your improvement with detailed analytics and reports. - User-Friendly Design: Intuitive interface for smooth navigation and focus. Who is it for? - Petroleum Engineering students preparing for exams. - Professionals brushing up on their knowledge. - Anyone interested in understanding the principles of occupational therapy. Download now and make learning occupational therapy enjoyable and effective! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://forwaelade.web.app/PetroleumEngineering/privacy-policy

Screenshots

VisualMind4 screens
Petroleum Engineering+4 screens

Verdict

The call

The clearest difference is rating: Petroleum Engineering+ at 5.0 against VisualMind's 4.5. VisualMind's advantage is ratings volume (3.3K vs 1). On price, update cadence, ads and in-app purchases 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. VisualMind sells 9 in-app purchases, starting at $13.99 per 7 days and Petroleum Engineering+ sells 6 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Petroleum Engineering+ holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: VisualMind has 3.3K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

VisualMind ships an update every 3 weeks, Petroleum Engineering+ monthly. Both last shipped on September 23, 2026.

Scorecard2 real differences · 8 level
VisualMind versus Petroleum Engineering+: the parameters behind the verdict, then further details
ParameterVisualMindPetroleum Engineering+
PriceFreeFree
Rating4.5 (3.3K ratings)5.0 (1 ratings) — better
Positive reviews23.0% of reviews
Number of ratings3.3K — better1
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better17.0
Further details — not scored
Size45 MB18 MB
Age rating4+4+
DeveloperAsana Rebel GmbHForwa Elade Wunde

Customer experience

VisualMind

All ratings3,332 ratings
Positive87.1%
Neutral3.3%
Negative9.5%
Written reviews330 reviews
Positive23.0%
Neutral6.7%
Negative70.3%

Petroleum Engineering+

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

VisualMind

Reported bugs

4 issues
  • Crashing when trying to create a custom mind map
  • Inability to save or export mind maps
  • Lack of functionality beyond preset templates
  • Subscription issues and inability to cancel

Requested features

8 requests
  • Include an option to multi-select branches, sub-branches to be able to move items around
  • Allow users to hard press or interact with bubbles to copy suggestions to a more advanced AI app like ChatGPT for further development
  • Facilitate interactive scenarios where users can explore alternatives and make more informed decisions
  • Offer actionable steps to implement each suggestion
  • Allow users to ask more questions and dive deeper
Show 3 more
  • Ability to edit the mind map
  • Ability to export the mind map to other formats like jpg, miro, figma
  • Ability to import mind maps into other programs

Petroleum Engineering+

Not enough reviews yet to summarise bugs or requests.

In-app purchases

9 purchases

VisualMind

Subscriptions9
  • VisualMind Premium7 Days trial$13.997 Days
  • VisualMind Premium Trial7 Days trial$19.997 Days
  • VisualMind Premium 1w$19.997 Days
Show 6 more
  • Premium1 Month trial$29.991 Month
  • VisualMind Premium Trial - 12m7 Days trial$69.991 Year
  • VisualMind Premium 12m$69.991 Year
  • VisualMind Premium1 Year trial$69.991 Year
  • Premium1 Year trial$71.991 Year
  • premium_12m_9999_trial7 Days trial$89.991 Year
6 purchases

Petroleum Engineering+

Subscriptions3
  • 1 Month$9.991 Month
  • 6 Months$19.996 Months
  • 1 Year$29.991 Year
One-time3
  • 1500$0.99
  • 3500$1.99
  • 9000$3.99

Questions

Is VisualMind free?
VisualMind is free to download, with in-app purchases available.
Is Petroleum Engineering+ free?
Petroleum Engineering+ is free to download, with in-app purchases available.
Which has better reviews, VisualMind or Petroleum Engineering+?
Petroleum Engineering+ is rated higher. VisualMind averages 4.5 out of 5 from 3.3K ratings, while Petroleum Engineering+ averages 5.0 from 1 ratings.
Do VisualMind or Petroleum Engineering+ have ads?
Neither VisualMind nor Petroleum Engineering+ shows ads.
Which is updated more often, VisualMind or Petroleum Engineering+?
VisualMind ships an update every 3 weeks, and Petroleum Engineering+ monthly. Most recently, VisualMind was updated on September 23, 2026 and Petroleum Engineering+ on September 23, 2026.

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