Report updated Apr 11, 2026

Steam Tables is a well-regarded business app that is free with in-app purchases. With a 4.2/5 rating from 1.1K reviews, it maintains solid user satisfaction. Users particularly appreciate utility for engineering students, though aggressive paywall/premium model remains a common concern.

What Is Steam Tables?

Steam Tables by Carmel Software is a legacy thermodynamic calculation tool for HVAC professionals and students, distinguished by its formula-based engine and interactive slider UI. It currently holds a #87 Paid ranking in the US Business category but faces stiff competition from free industrial-grade apps. The app's 15-year history and integration with an HVAC Equipment Locator provide a unique professional utility that justifies its premium pricing on iOS.

Current Momentum

v6.1 Β· 3mo ago

Steady

Steam Tables recently added report sharing via text and email on iOS, following a major Android redesign with saved conditions.

AI-powered deep analysis surfacing high-signal insights. Still in beta, accuracy improves daily. For informational purposes only.

Active Nemesis

Steam Tables

Steam Tables

By Carmel Software

Other Rivals

WolframAlpha Classic

7-Day Rank Pulse πŸ‡ΊπŸ‡Έ

#87
β–Ό39

Main Category

BusinessPaid
AI-powered deep analysis surfacing high-signal insights. Still in beta, accuracy improves daily. For informational purposes only.

Recent User Mood πŸ‡ΊπŸ‡Έ

Excited
Excited
Utility for Engineering Students
Aggressive Paywall/Premium Model

What makes this app unique?

What Does It Look Like?

How Is The App's Momentum Right Now?

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What Are The Key Features?

Comprehensive Thermodynamic CalculationsDifferentiator

Calculates saturated and superheated steam properties using actual steam-table formulas rather than static lookups.

Interactive Slider ControlsDifferentiator

Adjust input parameters via sliders for real-time calculation updates.

Integrated HVAC Equipment LocatorDifferentiator

Bonus utility included within the app for tracking equipment and service records.

Who is it for & how much does it cost?

Target Audience

HVAC technicians, engineers, and installers who require precise, on-the-go thermodynamic calculations and equipment management tools.

Pricing

Freemium
  • iOS version: Paid one-time fee of $5.99
  • Android version: Free with ad-supported or feature-limited model

The developer uses a split strategy: a premium $5.99 entry on iOS for professionals and a freemium model on Android to capture the student and high-volume market, though the latter suffers from paywall-related sentiment issues.

Who Built It?

Business

Enrichment in progress

Publisher profile available very soon

What other apps does Carmel Software make?

HVAC Psychrometric Plus

HVAC Psychrometric Plus

Productivity

HVAC Residential Load Calcs

HVAC Residential Load Calcs

Business

What do users think recently?

High confidence Β· 1.1K reviews analyzed

What is the recent mood?

Excited
Excited

β€œRecent user voice shows a excited sentiment. Users appreciate utility for engineering students and ease of use and speed, but report aggressive paywall/premium model and data accuracy and formatting.”

What Users Love

Utility for Engineering Students

incredible app, it save me while i was studying thermodynamics

It's a great tool for every student, that studies thermodynamics!

Ease of Use and Speed

It instantly updates the results as I change the inputs

easy to use and fast

What Frustrates Users

Aggressive Paywall/Premium Model

Most information & features are locked behind "premium". Very deceptive interface

Needs premium version to work

Data Accuracy and Formatting

kinematic viscosity and Prandtl number tend to be off by 10^6

One cannot read the exponents which makes the whole thing kinda useless.

What is the competitive landscape for Steam Tables?

How's The Business Market?

How does it evolve in the Business market?

ChartRankChange
Paid#87β–Ό16

Business Market Trend

Business market trend & dynamics

Available very soon

The rivals identified

The Nemesis

Head to Head

While TLV has the edge in brand authority and price (free), Steam Tables by Carmel Software offers superior interactive utility with its slider-based inputs and broader HVAC-specific toolset for paying professionals.

What sets Steam Tables apart

  • +

    Interactive slider controls allow for rapid 'what-if' analysis without manual typing

  • +

    Includes the HVAC Equipment Locator utility as a built-in bonus feature

What's Steam Tables's Edge

  • -

    Zero-cost entry point compared to the $5.99 premium price of the target app

  • -

    Direct brand association with industrial steam trap and valve manufacturing

Peers

-

Natural language processing allows users to type 'saturated steam at 100 psi' directly

-

Provides graphical representations and step-by-step mathematical derivations

The outtake for Steam Tables

SWOT Analysis

Core Strengths

  • Formula-based calculation engine (not static lookups)
  • Interactive slider UI for rapid 'what-if' analysis
  • 15-year developer track record and HVAC suite integration

Critical Frictions

  • Scientific notation formatting issues affecting readability
  • Perceived deceptive paywall on Android platform
  • Reported inaccuracies in specific physical properties (viscosity)

Growth Levers

  • Modernize UI with dark mode and gesture navigation
  • Add steam pipe sizing to match industrial competitors
  • Improve data export/reporting features

Market Threats

  • Free high-authority apps from industrial leaders like TLV
  • Downward trend in paid rankings (#87, ↓16)
  • Newer entrants with modern, streamlined UI/UX

What are the next best moves?

high

Fix scientific notation and exponent readability

Directly cited as making the app 'useless' in user complaints; critical for professional trust.

high

Audit kinematic viscosity and Prandtl number calculations

User reported a 10^6 magnitude error, which is a critical failure for a 'professional-grade' engineering tool.

medium

Redesign Android monetization onboarding

Frequent 'deceptive' labels in reviews indicate the current freemium transition is damaging the brand and driving 1-star ratings.

Feature Gaps vs Competitors

  • Steam Pipe Sizing tool (available in Spirax-Sarco)
  • Condensate and flash steam recovery calculations (available in TLV)
  • Dark mode and gesture-based navigation (available in Steam Tables Pro)

Key Takeaways

Steam Tables is a robust legacy tool with a superior calculation engine, but it is resting on its laurels. To defend its #87 ranking against free industrial rivals like TLV, the PM must immediately resolve technical accuracy reports and modernize the output formatting to meet professional standards.

Where Is It Heading?

Stable

Android version refactored to Kotlin (v6.2.1) β€” indicates active technical debt management and platform investment.

Rankings dropped 16 positions to #87 Paid β€” suggests loss of momentum against newer or free competitors.

Recent iOS updates focused on OS compatibility and basic sharing β€” maintenance mode rather than feature expansion.

Independent intel to help builders create better apps.

No publisher influence. No third-party bias. Built with objectivity in mind to serve the builder community.

Hope this helps & keep building! Β· Found an error?

What's new in this report

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Cite this report

Marlvel.ai. β€œSteam Tables Intelligence Report.” Updated Apr 11, 2026. https://marlvel.ai/intel-report/business/com-carmelsoft-steamtables

Agent Markdown (.md)Β·

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