# Steam Tables Pro vs WISO

The clearest difference is price: WISO at Free against Steam Tables Pro's $4.99. WISO also leads on review sentiment (43% vs 26%) and iOS requirement (9.0 vs 15.1). Steam Tables Pro's advantage is in-app purchases (none vs 5). On update cadence, ads and device support there is nothing between them.

WISO is free to download; Steam Tables Pro costs $4.99 up front. WISO sells 5 one-off in-app purchases. Steam Tables Pro asks for nothing beyond the download.

Steam Tables Pro ships an update every 2 months, WISO every 5 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Steam Tables Pro | WISO |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/wiso/id964392337/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 26.1% of reviews | **42.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Paid | **Free** |
| Size | 28 MB | 27 MB |
| Requires iOS | 15.1 | **9.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eduardo Almeida](https://appshunter.io/developer/906209752) | [Astrotek Integration Co., Ltd.](https://appshunter.io/developer/1071494823) |

## What reviewers say

### Steam Tables Pro

[App page](https://appshunter.io/ios/app/steam-tables-pro/id906209749)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### WISO

[App page](https://appshunter.io/ios/app/wiso/id964392337)

This companion app configures and manages smart safety devices. It automatically sends emergency alerts with location tracking via SMS, email, or LINE to designated contacts. Enjoy over two months of battery life with notifications for battery replacement.

**Highlights:** Emergency alerts with location tracking, SMS, email, and LINE notifications, Detailed location map for contacts, Over 2 months battery life, Coin battery replacement notifications, LINE messaging integration

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 15 SMS | $0.99 | one-time |
| 15 SMS | $1.99 | one-time |
| 40 SMS | $4.99 | one-time |
| 100 SMS | $9.99 | one-time |
| 240 SMS | $19.99 | one-time |


## Frequently asked questions

### Is Steam Tables Pro free?

Steam Tables Pro costs $4.99, with no in-app purchases.

### Is WISO free?

WISO is free to download, with in-app purchases available.

### Do Steam Tables Pro or WISO have ads?

Neither Steam Tables Pro nor WISO shows ads.

### Which is updated more often, Steam Tables Pro or WISO?

Steam Tables Pro ships an update every 2 months, and WISO every 5 weeks. Most recently, Steam Tables Pro was updated on October 24, 2026 and WISO on October 24, 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.*