# Thread Calculators vs Mechanical Toolkit

The clearest difference is price: Mechanical Toolkit at Free against Thread Calculators's $1.99. Thread Calculators's advantage is in-app purchases (none vs 1) and update cadence (every 10 months vs every 20 months). On ads, device support and iOS requirement there is nothing between them.

Mechanical Toolkit is free to download; Thread Calculators costs $1.99 up front. Mechanical Toolkit sells 1 one-off in-app purchase. Thread Calculators asks for nothing beyond the download.

Thread Calculators ships an update every 10 months, Mechanical Toolkit every 20 months. The most recent releases landed on October 8, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Thread Calculators | Mechanical Toolkit |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/thread-calculators/id1670586227/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 20 months |
| Monetization | Paid | — |
| Size | 51 MB | 49 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kantaben Gorasiya](https://appshunter.io/developer/1640260396) | [Shital Gorasiya](https://appshunter.io/developer/1737199158) |

## What reviewers say

### Thread Calculators

[App page](https://appshunter.io/ios/app/thread-calculators/id1670586227)

This app provides precise thread-cutting data for various international standards. It assists machinists, engineers, and CNC professionals in quickly finding essential measurements and detailed tables for thread dimensions and cutting values.

**Highlights:** Supports international thread standards (M, UNC, NPT, etc.), Tap Hole Size Calculator, Bolt Diameter Guide, Tap Hole Forming Data, Tap Hole Repair Values, Detailed thread dimension tables

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

**In-app purchases:** none


### Mechanical Toolkit

[App page](https://appshunter.io/ios/app/mechanical-toolkit/id6480299808)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Purchase | $4.99 | one-time |


## Frequently asked questions

### Is Thread Calculators free?

Thread Calculators costs $1.99, with no in-app purchases.

### Is Mechanical Toolkit free?

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

### Do Thread Calculators or Mechanical Toolkit have ads?

Neither Thread Calculators nor Mechanical Toolkit shows ads.

### Which is updated more often, Thread Calculators or Mechanical Toolkit?

Thread Calculators ships an update every 10 months, and Mechanical Toolkit every 20 months. Most recently, Thread Calculators was updated on October 8, 2026 and Mechanical Toolkit on October 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.*