# 数控计算 vs Thread Calculator

The clearest difference is price: Thread Calculator at Free against 数控计算's $3.99. 数控计算's advantage is ads (none vs shown) and update cadence (every 2 weeks vs every 18 months). On review sentiment, in-app purchases and device support there is nothing between them.

Thread Calculator is free to download; 数控计算 costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

数控计算 ships an update every 2 weeks, Thread Calculator every 18 months. The most recent releases landed on October 17, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 数控计算 | Thread Calculator |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[4.3 (13 ratings)](https://appshunter.io/ios/app/thread-calculator/id1559560290/reviews)** |
| Number of ratings | — | **13** |
| Positive reviews | 30.8% of reviews | **33.3% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 18 months |
| Monetization | Paid | **Ad-supported** |
| Size | 54 MB | 25 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chengdu Miyouguo Technology Co., Ltd.](https://appshunter.io/developer/1483409110) | [GSR Gustav Stursberg GmbH](https://appshunter.io/developer/1559560292) |

## What reviewers say

### 数控计算

[App page](https://appshunter.io/ios/app/id1483409111)

This app assists CNC lathe programmers and machinists with complex calculations and program generation for various threading, grooving, and taper operations. It offers a comprehensive suite of tools to improve efficiency and accuracy in mechanical processing.

**Highlights:** Macro program generation (threading, grooving), Thread machining programs (metric, unified, pipe), Taper calculations and conversions, Chamfer and corner calculations, Tolerance lookup for shafts and holes, Arc tangent point calculation, Various trigonometric functions

**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 数控计算 free?

数控计算 costs $3.99, with no in-app purchases.

### Is Thread Calculator free?

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

### Do 数控计算 or Thread Calculator have ads?

Thread Calculator shows ads; 数控计算 does not.

### Which is updated more often, 数控计算 or Thread Calculator?

数控计算 ships an update every 2 weeks, and Thread Calculator every 18 months. Most recently, 数控计算 was updated on October 17, 2026 and Thread Calculator on October 13, 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.*