# Mec Eng Tools vs Antigrawity

The clearest difference is monetization model: Mec Eng Tools at free with in-app purchases against Antigrawity's subscription. Mec Eng Tools also leads on device support (3 vs 1). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Mec Eng Tools sells 10 one-off in-app purchases and Antigrawity sells 2 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Mec Eng Tools | Antigrawity |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (70 ratings)](https://appshunter.io/ios/app/antigrawity-guide-code-ai/id6755686701/reviews)** |
| Number of ratings | — | **70** |
| Positive reviews | 21.1% of reviews | **25.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 41 MB | 11 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Eduardo Almeida](https://appshunter.io/developer/906209752) | [Smart Phone Assistant Utilities](https://appshunter.io/developer/1876560657) |

## What reviewers say

### Mec Eng Tools

[App page](https://appshunter.io/ios/app/mec-eng-tools/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 (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade Steam Tables | $3.99 | one-time |
| Stress & Strain | $4.99 | one-time |
| Machine Design | $4.99 | one-time |
| Pressure Vessels | $4.99 | one-time |
| Fluids & Piping Pack | $6.99 | one-time |
| Thermal Pack: Steam Complement | $6.99 | one-time |
| Thermal Sciences Pack | $10.49 | one-time |
| Solids & Design Pack | $10.49 | one-time |
| Collection: Steam Complement | $24.49 | one-time |
| Complete Engineering Collection | $27.99 | one-time |


### Antigrawity

[App page](https://appshunter.io/ios/app/antigrawity-guide-code-ai/id6755686701)

This app provides structured guides, AI-powered assistance, and interactive quizzes to help users quickly learn and master programming concepts. It offers instant help for any workspace-related questions and detailed results to track learning progress.

**Highlights:** Step-by-step guides, Instant AI assistance, Interactive quizzes, Detailed test results, Workspace navigation, Learning progress tracking

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Antigrawity Pro | $5.99 | per 7 days |
| Antigrawity Trial | $5.99 | per 7 days |


## Frequently asked questions

### Is Mec Eng Tools free?

Mec Eng Tools is free to download, with in-app purchases available.

### Is Antigrawity free?

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

### Do Mec Eng Tools or Antigrawity have ads?

Neither Mec Eng Tools nor Antigrawity shows ads.

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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.*