# MechTab vs Thread Calculator

The clearest difference is review sentiment: MechTab at 89% against Thread Calculator's 33%. MechTab also leads on ads (none vs shown) and monetization model (free vs ad-supported). Thread Calculator's advantage is rating (4.3 vs 4.1). On price, ratings volume, in-app purchases and device support there is nothing between them.

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

Thread Calculator holds the better App Store score, 4.3 against 4.1. Both are backed by a comparable volume of ratings — 16 and 13 respectively. Written reviews complicate that: 89% of MechTab's written reviews are positive against 33% of Thread Calculator'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, Thread Calculator every 18 months. The most recent releases landed on September 15, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | MechTab | Thread Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (16 ratings)](https://appshunter.io/ios/app/mechtab/id553201101/reviews) | **[4.3 (13 ratings)](https://appshunter.io/ios/app/thread-calculator/id1559560290/reviews)** |
| Number of ratings | **16** | 13 |
| Positive reviews | **88.6% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 9 months** | Every 18 months |
| Monetization | **Free** | Ad-supported |
| Size | 9 MB | 25 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Werder AG](https://appshunter.io/developer/553201104) | [GSR Gustav Stursberg GmbH](https://appshunter.io/developer/1559560292) |

## 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


### Thread Calculator

[App page](https://appshunter.io/ios/app/thread-calculator/id1559560290)

This app provides a quick and easy way to calculate thread dimensions for various units, including tap hole sizes and bolt specifications. It helps metalworkers find precise measurements for internal and external threads without consulting tables.

**Highlights:** Thread cutting calculator for multiple units, Cold forming calculator, Thread repair calculator, Tap hole and bolt diameter calculation, Saves time compared to tables

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MechTab free?

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

### Is Thread Calculator free?

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

### Which has better reviews, MechTab or Thread Calculator?

Thread Calculator is rated higher. MechTab averages 4.1 out of 5 from 16 ratings, while Thread Calculator averages 4.3 from 13 ratings.

### Do MechTab or Thread Calculator have ads?

Thread Calculator shows ads; MechTab does not.

### Which is updated more often, MechTab or Thread Calculator?

MechTab ships an update every 9 months, and Thread Calculator every 18 months. Most recently, MechTab was updated on September 15, 2026 and Thread Calculator on September 9, 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.*