Comparison

Steam Tables Pro vs RMI Apps

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

Head to head
About

Steam Tables Pro

This app calculates a comprehensive range of thermodynamic properties for steam using the IAPWS-97 equations. It allows calculations based on various input parameters like pressure, temperature, enthalpy, entropy, and quality, and displays results in charts.

Highlights
  • Calculates properties from pressure and temperature
  • Calculates properties from pressure and enthalpy
  • Calculates properties from pressure and entropy
  • Calculates properties from pressure and quality
  • Calculates properties from saturated temperature and quality
  • Calculates properties from enthalpy and entropy
  • Displays results in T-s, P-h, and H-s charts
  • Supports multiple units
Features
Read full description

Calculate water and steam properties with the IAPWS-IF97 equations. Choose six input combinations: pressure and temperature (p·T), pressure and enthalpy (p·h), pressure and entropy (p·s), pressure and quality (p·x), temperature and quality (T·x), or enthalpy and entropy (h·s). Find absolute pressure, temperature, enthalpy, entropy, vapor quality, specific volume, internal energy, density, and thermodynamic region. Explore heat capacities, speed of sound, the Cp/Cv ratio, vapor volume fraction, and transport properties. Save states to compare results and plot points on T–s, p–h, and h–s diagrams. Choose the units you use in study or work. Pressure units explicitly indicate absolute pressure, such as bar(a). Learn inside the app with a usage guide, essential concepts, explanations of each property, and worked examples for boilers, turbines, and valves. Explore boiler superheating, turbine isentropic efficiency, and constant enthalpy during throttling, with T–s and p–h diagrams. The calculator, guide, and tutorial are available offline in English and Portuguese.

About

RMI Apps

Features
Read full description

RMI Apps is a mobile application dashboard for PT. Rejoso Manis Indo. RMI Apps make it easy to view sugar delivery schedules by date, delivery graph, and sugar production graph. Users just have to log in with username and password to use the application.

Screenshots

Steam Tables Pro4 screens
RMI Apps4 screens

Verdict

The call

The clearest difference is price: RMI Apps at Free against Steam Tables Pro's $4.99. On update cadence, ads, in-app purchases 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

RMI Apps is free to download; Steam Tables Pro costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 24, 2026 and October 1, 2026 respectively.

Scorecard1 real difference · 7 level
Steam Tables Pro versus RMI Apps: the parameters behind the verdict, then further details
ParameterSteam Tables ProRMI Apps
Price$4.99Free — better
Positive reviews26.1% of reviews—
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size28 MB54 MB
Age rating4+4+
DeveloperEduardo AlmeidaMumuh Kustino

In-app purchases

None

Steam Tables Pro

No in-app purchases

None

RMI Apps

No in-app purchases

Questions

Is Steam Tables Pro free?
Steam Tables Pro costs $4.99, with no in-app purchases.
Is RMI Apps free?
RMI Apps is free to download, with no in-app purchases.
Do Steam Tables Pro or RMI Apps have ads?
Neither Steam Tables Pro nor RMI Apps shows ads.
Which is updated more often, Steam Tables Pro or RMI Apps?
Steam Tables Pro ships an update every 2 months, and RMI Apps every 2 months. Most recently, Steam Tables Pro was updated on October 24, 2026 and RMI Apps on October 1, 2026.

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