# Metal World vs MechTab

The clearest difference is rating: Metal World at 4.8 against MechTab's 4.1. Metal World also leads on update cadence (every 2 months vs every 9 months) and review sentiment (100% vs 89%). MechTab's advantage is ratings volume (16 vs 5). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Metal World holds the better App Store score, 4.8 against 4.1. Both are backed by a comparable volume of ratings — 5 and 16 respectively. Written reviews point the same way: 100% of Metal World's written reviews are positive against 89% of MechTab's.

Metal World ships an update every 2 months, MechTab every 9 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Metal World | MechTab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/metal-world/id480664274/reviews)** | [4.1 (16 ratings)](https://appshunter.io/ios/app/mechtab/id553201101/reviews) |
| Number of ratings | 5 | **16** |
| Positive reviews | **100.0% of reviews** | 88.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 9 months |
| Monetization | Free | Free |
| Size | 37 MB | 9 MB |
| Requires iOS | **5.1.1** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BIKAR-METALLE GmbH](https://appshunter.io/developer/480664277) | [Werder AG](https://appshunter.io/developer/553201104) |

## What reviewers say

### Metal World

[App page](https://appshunter.io/ios/app/metal-world/id480664274)

Quickly calculate the weight of various metal and plastic materials in numerous formats. Supports nearly 300 materials and 22 shapes, providing results per unit or total weight. Also offers material comparison and specific weight displays.

**Highlights:** Weight calculation for ~300 materials, Supports 22 formats (sheets, bars, tubes, etc.), Results per kg/m, m², or item, Specific weight display, Material comparison with EN/DIN standards, Information on special materials

**Features:** macOS Compatibility

**In-app purchases:** none


### MechTab

[App page](https://appshunter.io/ios/app/mechtab/id553201101)

This app offers a comprehensive set of tools for mechanics, providing essential data on tolerances, threads, cutting speeds, wrench sizes, and roughness. It also includes calculators for material weight, triangle properties, and trowalisation.

**Highlights:** ISO-Tolerance data (holes and shafts), Thread specifications, Cutting data calculations, Wrench size conversions, Roughness parameters, Material weight calculator, Triangle property calculator

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

**In-app purchases:** none


## Frequently asked questions

### Is Metal World free?

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

### Is MechTab free?

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

### Which has better reviews, Metal World or MechTab?

Metal World is rated higher. Metal World averages 4.8 out of 5 from 5 ratings, while MechTab averages 4.1 from 16 ratings.

### Do Metal World or MechTab have ads?

Neither Metal World nor MechTab shows ads.

### Which is updated more often, Metal World or MechTab?

Metal World ships an update every 2 months, and MechTab every 9 months. Most recently, Metal World was updated on November 1, 2026 and MechTab on November 6, 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.*