# Steam Tables Lite vs RMI Apps

The clearest difference is in-app purchases: RMI Apps at none against Steam Tables Lite's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Steam Tables Lite sells 1 one-off in-app purchase. RMI Apps asks for nothing beyond the download.

Steam Tables Lite ships an update every 3 months, RMI Apps every 2 months. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Steam Tables Lite | RMI Apps |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 21.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 31 MB | 54 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eduardo Almeida](https://appshunter.io/developer/906209752) | [Mumuh Kustino](https://appshunter.io/developer/1639847836) |

## What reviewers say

### Steam Tables Lite

[App page](https://appshunter.io/ios/app/steam-tables-lite/id1046405234)

This utility app calculates thermodynamic properties using IAPWS-97 equations. It allows users to determine various properties like pressure, temperature, enthalpy, and specific volume based on different input parameters. The app supports multiple units for calculations.

**Highlights:** IAPWS-97 equation calculations, Calculate properties from pressure and temperature, Calculate properties from pressure and enthalpy, Calculate properties from pressure and entropy, Calculate properties from pressure and quality, Support for multiple units

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade Steam Tables | $3.99 | one-time |


### RMI Apps

[App page](https://appshunter.io/ios/app/rmi-apps/id6448507792)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Steam Tables Lite free?

Steam Tables Lite is free to download, with in-app purchases available.

### Is RMI Apps free?

RMI Apps is free to download, with no in-app purchases.

### Do Steam Tables Lite or RMI Apps have ads?

Neither Steam Tables Lite nor RMI Apps shows ads.

### Which is updated more often, Steam Tables Lite or RMI Apps?

Steam Tables Lite ships an update every 3 months, and RMI Apps every 2 months. Most recently, Steam Tables Lite was updated on October 24, 2026 and RMI Apps on October 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*