Report updated Jun 2, 2026
Haverly's PetroCalc
For petroleum, chemical, and process engineers, as well as engineering students requiring field-ready calculation tools.
Haverly's PetroCalc is a well-regarded utilities app that is completely free. With a 4.7/5 rating from 3 reviews, it maintains solid user satisfaction.
What is Haverly's PetroCalc?
PetroCalc is a petroleum-property calculation utility for engineers and students, providing offline tools for viscosity, blending, and distillation analysis on iOS.
Users hire PetroCalc to perform high-precision engineering calculations in remote field or lab environments where data connectivity is unavailable, ensuring workflow continuity.
Current Momentum
v2.1 · 1mo ago
Maintenance- No notable signals last 3 months
What makes this app unique?
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What Are The Key Features?
Converts temperatures between TBP, ASTM D86, D1160, and D2887 scales for distillation analysis
Performs all calculations without a data connection, suitable for field and lab environments
Calculates viscosity, crude-oil blending, and heating values for engineering tasks
How much does it cost?
- Free to download and use
The app is provided as a free utility, functioning as a brand-awareness and lead-generation tool for Haverly Systems' enterprise-grade planning and optimization software.
Who Built It?
Enrichment in progress
Publisher profile available very soon
What other apps does Haverly Systems make?
What do users think recently?
Low confidence · 3 reviews analyzed
How did the latest release land?
What is the recent mood?
Recent user voice shows a excited sentiment.
Limited review volume (3 reviews). Sentiment analysis will deepen as more data lands.
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
What is the competitive landscape for Haverly's PetroCalc?
Where is it available?
Localized markets (1)
How's The Utilities Market?
Market outlook for this category
Available very soon
Which niche is Haverly's PetroCalc in?
to perform complex petroleum and chemical calculations
Explore the full Petroleum Engineering Calculators niche
Every app in this space (3 tracked), the niche's live rankings, and Marlvel's editorial take on the job-to-be-done.
The rivals identified
Nemeses(1)
This app competes directly for the professional oil and gas engineer's attention by providing specialized field-calculation tools for well control and drilling operations.
Differentiators
- Provides specialized well control kill sheets that PetroCalc currently lacks for field operations.
- Includes stuck pipe identification logic, addressing high-stakes operational risks for drilling engineers.
- Leverages institutional backing from a major energy firm, providing high trust for technical calculations.
Head to head
Haverly should emphasize its superior UI and broader property calculation suite to capture users who find the nemesis outdated and overly niche.
Same space(4)
While focused on biology, it competes for the same technical professional audience requiring high-precision, reference-based calculation tools.
Differentiators
- Offers integrated technical support access directly within the app for complex scientific queries.
- Provides specialized enzyme and double digest finders that cater to a highly specific laboratory workflow.
This app targets the same 'utility-first' user persona, providing specialized calculators for technical infrastructure and resolution management.
Differentiators
- Features a modern, high-performance UI that sets a benchmark for utility app usability.
- Includes IP and bandwidth calculators that appeal to the technical professional's broader utility toolkit.
This app competes for the industrial maintenance and engineering segment by offering specialized mechanical and lubrication calculators.
Differentiators
- Includes fleet maintenance tracking, extending utility beyond simple calculations into operational management.
- Backed by Siemens Energy, providing a strong brand-trust signal for industrial maintenance professionals.
EFB-Pro serves the aviation engineering sector, competing for the same professional demographic that relies on precise, compliant calculation tools.
Differentiators
- Provides AFM-compliant performance calculators that meet strict regulatory requirements for aviation professionals.
- Includes advanced performance forecasting tools that offer more predictive value than standard property calculators.
New entrants(2)
This newcomer targets the environmental engineering niche, competing for the same industrial utility market as PetroCalc.
Differentiators
- Focuses on offline-first calculation engines for remote industrial sites with poor connectivity.
This app enters the utility space by providing specialized dose and calibration calculators for the agricultural engineering sector.
Differentiators
- Offers highly specific boom spray calibration tools for precision agricultural chemical application.
Compare Haverly's PetroCalc against every rival
All rivals in one side-by-side table: identity, store metrics, ratings & sentiment, and strategic intel, plus a head-to-head page for each.
The outtake for Haverly's PetroCalc
Strengths to defend, gaps to attack
Core Strengths
- Offline-first engine enables use in remote industrial sites without connectivity
- Haverly Systems brand provides high trust for technical calculations
- Specialized distillation-curve tools offer precision missing in general-purpose calculators
Critical Frictions
- Stagnant interface design compared to modern utility benchmarks
- Low review volume limits social proof for new users
- Lack of safety-critical drilling workflows limits professional adoption
Growth Levers
- Integrate technical support access for complex scientific queries
- Expand into fleet maintenance tracking to increase utility
- Develop specialized well control kill sheets for field operations
Market Threats
- Drilling Engineering's institutional backing provides higher trust for safety-critical operations
- Niche entrants like Sludge Dewatering Calculator erode the offline-first utility moat
- Lack of feature updates risks obsolescence against agile competitors
What are the next best moves?
Refresh UI design because the current interface is stagnant compared to ResEditor → increase user retention.
ResEditor sets a modern UI benchmark that highlights PetroCalc's dated appearance.
Trade-off: Pause the distillation-curve tool expansion — UI modernization is critical for professional perception.
Audit safety-critical workflow gaps because Drilling Engineering dominates via well control sheets → capture drilling engineer segment.
Drilling Engineering's well control sheets are a primary competitive advantage.
Trade-off: Deprioritize minor property calculation updates — safety-critical workflows are higher-value features.
A counter-intuitive read
The lack of cloud connectivity is PetroCalc's primary moat, not a weakness, as it ensures consistent performance in the remote, high-stakes environments where petroleum engineers operate.
Feature Gaps vs Competitors
- Well control kill sheets (available in Drilling Engineering but missing here)
- Stuck pipe identification logic (available in Drilling Engineering but missing here)
- Fleet maintenance tracking (available in MyHSRC but missing here)
Key Takeaways
PetroCalc provides reliable offline utility for petroleum engineers, but its lack of safety-critical workflows and dated UI limit its professional reach, so the team must prioritize safety-workflow integration to remain competitive.
Where Is It Heading?
Stable
The petroleum utility market is consolidating around specialized, workflow-integrated tools rather than general-purpose calculators. PetroCalc's maintenance-mode posture leaves it exposed to agile entrants, so the team must pivot toward safety-critical workflows to prevent user churn to specialized rivals.
The app remains in maintenance mode with no recent feature additions, signaling a focus on brand awareness over active user growth.
Niche competitors like Sludge Dewatering Calculator are entering the offline-first utility space, which will increase pressure on PetroCalc's core value proposition.