# Machinist Calc Pro vs Thread Calculators

The clearest difference is price: Thread Calculators at $1.99 against Machinist Calc Pro's $24.99. Thread Calculators also leads on review sentiment (100% vs 56%) and rating (5.0 vs 4.8). Machinist Calc Pro's advantage is ratings volume (27 vs 1). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Machinist Calc Pro costs $24.99 and Thread Calculators $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Thread Calculators holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Machinist Calc Pro has 27 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 56% of Machinist Calc Pro's written reviews are positive against 100% of Thread Calculators's.

Machinist Calc Pro ships an update every 5 months, Thread Calculators every 10 months. The most recent releases landed on September 27, 2026 and August 1, 2026 respectively.

## The numbers

| Metric | Machinist Calc Pro | Thread Calculators |
| --- | --- | --- |
| Price | $24.99 | **$1.99** |
| Rating | [4.8 (27 ratings)](https://appshunter.io/ios/app/machinist-calc-pro/id596584456/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/thread-calculators/id1670586227/reviews)** |
| Number of ratings | **27** | 1 |
| Positive reviews | 55.6% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 10 months |
| Monetization | Paid | Paid |
| Size | 14 MB | 51 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Calculated Industries](https://appshunter.io/developer/370406449) | [Kantaben Gorasiya](https://appshunter.io/developer/1640260396) |

## What reviewers say

### Machinist Calc Pro

[App page](https://appshunter.io/ios/app/machinist-calc-pro/id596584456)

This app provides machining professionals with a comprehensive set of tools for calculations related to speeds, feeds, threads, and trigonometry. It aims to increase productivity and reduce tool wear by offering quick access to essential data, replacing the need for physical charts and books.

**Highlights:** Speeds and Feeds calculations, Thread size and drill size look-ups, Trigonometric functions, Right triangle math, US and Metric unit conversions, Built-in help

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Machinist Calc Pro free?

Machinist Calc Pro costs $24.99, with no in-app purchases.

### Is Thread Calculators free?

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

### Which has better reviews, Machinist Calc Pro or Thread Calculators?

Thread Calculators is rated higher. Machinist Calc Pro averages 4.8 out of 5 from 27 ratings, while Thread Calculators averages 5.0 from 1 ratings.

### Do Machinist Calc Pro or Thread Calculators have ads?

Neither Machinist Calc Pro nor Thread Calculators shows ads.

### Which is updated more often, Machinist Calc Pro or Thread Calculators?

Machinist Calc Pro ships an update every 5 months, and Thread Calculators every 10 months. Most recently, Machinist Calc Pro was updated on September 27, 2026 and Thread Calculators on August 1, 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.*