# Steam Tables Pro vs Date.Time Calculator

The clearest difference is review sentiment: Steam Tables Pro at 26% against Date.Time Calculator's 0%. Steam Tables Pro also leads on update cadence (every 2 months vs every 5 months). Date.Time Calculator's advantage is price ($0.99 vs $4.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Steam Tables Pro costs $4.99 and Date.Time Calculator $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Steam Tables Pro ships an update every 2 months, Date.Time Calculator every 5 months. The most recent releases landed on October 3, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Steam Tables Pro | Date.Time Calculator |
| --- | --- | --- |
| Price | $4.99 | **$0.99** |
| Positive reviews | **26.1% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Paid | Paid |
| Size | 30 MB | 1 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eduardo Almeida](https://appshunter.io/developer/906209752) | [Noriaki HASHIBA](https://appshunter.io/developer/978336077) |

## 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


### Date.Time Calculator

[App page](https://appshunter.io/ios/app/datetime-calculator/id978336078)

Calculate date and time differences, intervals, and perform unit conversions with a pure calculator interface. Useful for determining future or past dates, calculating total time for multiple events, and converting between various time units and POSIX time.

**Highlights:** Date and time point calculations, Time interval calculations, Unit conversion of time, POSIX time interconversion, Time zone mutual conversion, Arithmetic operations with time

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

**In-app purchases:** none


## Frequently asked questions

### Is Steam Tables Pro free?

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

### Is Date.Time Calculator free?

Date.Time Calculator costs $0.99, with no in-app purchases.

### Do Steam Tables Pro or Date.Time Calculator have ads?

Neither Steam Tables Pro nor Date.Time Calculator shows ads.

### Which is updated more often, Steam Tables Pro or Date.Time Calculator?

Steam Tables Pro ships an update every 2 months, and Date.Time Calculator every 5 months. Most recently, Steam Tables Pro was updated on October 3, 2026 and Date.Time Calculator on October 13, 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.*