# Thermo Physical Prop vs Periodic

The clearest difference is price: Periodic at Free against Thermo Physical Prop's $4.99. Periodic also leads on update cadence (every 5 weeks vs every 8 months). Thermo Physical Prop's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

Periodic is free to download; Thermo Physical Prop costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Thermo Physical Prop ships an update every 8 months, Periodic every 5 weeks. The most recent releases landed on September 12, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | Thermo Physical Prop | Periodic |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/thermo-physical-prop/id460148819/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 5 weeks** |
| Monetization | Paid | — |
| Size | 1 MB | 35 MB |
| Requires iOS | **14.3** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kaup Shenoy Associates](https://appshunter.io/developer/460148822) | [Om Prakash Chapagain](https://appshunter.io/developer/1618620262) |

## What reviewers say

### Thermo Physical Prop

[App page](https://appshunter.io/ios/app/thermo-physical-prop/id460148819)

Access essential thermo-physical property data for seventeen common industrial fluids. This app provides quick reference for engineers and students in thermodynamics, fluid mechanics, and heat transfer, aiding in flow system design computations.

**Highlights:** Data for 17 common industrial fluids, SI and USCS unit options, Transport properties (density, viscosity, etc.), Gas properties (molecular weight, specific heat ratio, etc.), Steam table with saturated and superheat conditions, Humid air properties (humidity ratio, dew point, etc.)

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

**In-app purchases:** none


### Periodic

[App page](https://appshunter.io/ios/app/periodic-table-elements/id1628647298)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Thermo Physical Prop free?

Thermo Physical Prop costs $4.99, with no in-app purchases.

### Is Periodic free?

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

### Do Thermo Physical Prop or Periodic have ads?

Periodic shows ads; Thermo Physical Prop does not.

### Which is updated more often, Thermo Physical Prop or Periodic?

Thermo Physical Prop ships an update every 8 months, and Periodic every 5 weeks. Most recently, Thermo Physical Prop was updated on September 12, 2026 and Periodic on May 16, 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.*