# Thermo Physical Prop vs 12th Grade Math Challenge

The clearest difference is price: 12th Grade Math Challenge at Free against Thermo Physical Prop's $4.99. 12th Grade Math Challenge also leads on rating (5.0 vs 1.0) and ratings volume (3 vs 1). Thermo Physical Prop's advantage is in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement there is nothing between them.

12th Grade Math Challenge is free to download; Thermo Physical Prop costs $4.99 up front. 12th Grade Math Challenge sells 1 one-off in-app purchase. Thermo Physical Prop asks for nothing beyond the download.

12th Grade Math Challenge holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Thermo Physical Prop ships an update every 8 months, 12th Grade Math Challenge every 11 months. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Thermo Physical Prop | 12th Grade Math Challenge |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/thermo-physical-prop/id460148819/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/12th-grade-math-challenge/id1626192903/reviews)** |
| Number of ratings | 1 | **3** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 11 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 1 MB | 34 MB |
| Requires iOS | 14.3 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kaup Shenoy Associates](https://appshunter.io/developer/460148822) | [IT365 Solutions Inc](https://appshunter.io/developer/1531416759) |

## 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


### 12th Grade Math Challenge

[App page](https://appshunter.io/ios/app/12th-grade-math-challenge/id1626192903)

Test your knowledge with 12th-grade level math problems and puzzles. Track your progress, challenge friends, and earn a certificate of your final score. Step-by-step solutions are available for better understanding.

**Highlights:** 12th-grade math questions, Math puzzles, Score certificates, Challenge friends, Step-by-step solutions

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove all Ads from Math 12 | $0.99 | one-time |


## Frequently asked questions

### Is Thermo Physical Prop free?

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

### Is 12th Grade Math Challenge free?

12th Grade Math Challenge is free to download, with in-app purchases available.

### Which has better reviews, Thermo Physical Prop or 12th Grade Math Challenge?

12th Grade Math Challenge is rated higher. Thermo Physical Prop averages 1.0 out of 5 from 1 ratings, while 12th Grade Math Challenge averages 5.0 from 3 ratings.

### Do Thermo Physical Prop or 12th Grade Math Challenge have ads?

Neither Thermo Physical Prop nor 12th Grade Math Challenge shows ads.

### Which is updated more often, Thermo Physical Prop or 12th Grade Math Challenge?

Thermo Physical Prop ships an update every 8 months, and 12th Grade Math Challenge every 11 months. Most recently, Thermo Physical Prop was updated on November 1, 2026 and 12th Grade Math Challenge on November 7, 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.*