# MechTab vs Dormer Pramet Calculators

The clearest difference is rating: Dormer Pramet Calculators at 5.0 against MechTab's 4.1. Dormer Pramet Calculators also leads on update cadence (every 3 months vs every 9 months) and iOS requirement (11.0 vs 15.0). MechTab's advantage is review sentiment (89% vs 50%) and ratings volume (16 vs 1). 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.

Dormer Pramet Calculators holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: MechTab has 16 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 89% of MechTab's written reviews are positive against 50% of Dormer Pramet Calculators's, so the app with the better star average is not the one people write more warmly about.

MechTab ships an update every 9 months, Dormer Pramet Calculators every 3 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | MechTab | Dormer Pramet Calculators |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (16 ratings)](https://appshunter.io/ios/app/mechtab/id553201101/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dormer-pramet-calculators/id1131975896/reviews)** |
| Number of ratings | **16** | 1 |
| Positive reviews | **88.6% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 9 MB | 109 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Werder AG](https://appshunter.io/developer/553201104) | [Dormer Pramet Ltd](https://appshunter.io/developer/434599555) |

## What reviewers say

### 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


### Dormer Pramet Calculators

[App page](https://appshunter.io/ios/app/dormer-pramet-calculators/id1131975896)

This app offers engineers and CNC operators essential cutting data for various machining operations like turning, drilling, threading, and milling. It features an intuitive interface to calculate machining time, torque, power, cutting effort, removal rate, and chip thickness, incorporating WMG technical data.

**Highlights:** Cutting data for turning, drilling, threading, milling, Machining time calculation, Torque, power, and cutting effort calculation, Removal rate and chip thickness calculation, WMG technical data format

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

**In-app purchases:** none


## Frequently asked questions

### Is MechTab free?

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

### Is Dormer Pramet Calculators free?

Dormer Pramet Calculators is free to download, with no in-app purchases.

### Which has better reviews, MechTab or Dormer Pramet Calculators?

Dormer Pramet Calculators is rated higher. MechTab averages 4.1 out of 5 from 16 ratings, while Dormer Pramet Calculators averages 5.0 from 1 ratings.

### Do MechTab or Dormer Pramet Calculators have ads?

Neither MechTab nor Dormer Pramet Calculators shows ads.

### Which is updated more often, MechTab or Dormer Pramet Calculators?

MechTab ships an update every 9 months, and Dormer Pramet Calculators every 3 months. Most recently, MechTab was updated on November 6, 2026 and Dormer Pramet Calculators on November 2, 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.*