# 车工计算器助手 vs LatheCalcPro

The clearest difference is price: LatheCalcPro at Free against 车工计算器助手's $1.99. 车工计算器助手's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On update cadence, ads and in-app purchases there is nothing between them.

LatheCalcPro is free to download; 车工计算器助手 costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 9, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | 车工计算器助手 | LatheCalcPro |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Paid | — |
| Size | 9 MB | 15 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [小燕 陈](https://appshunter.io/developer/1462872555) | [瑞龙 栗](https://appshunter.io/developer/1882574183) |

## What reviewers say

### 车工计算器助手

[App page](https://appshunter.io/ios/app/id6761551237)

This app assists machinists with complex calculations for CNC programming, including thread libraries, macro programs, and taper calculations. It also provides tools for geometry, material weight, and G/M code lookups to streamline the machining process.

**Highlights:** Cut point coordinate calculation, Thread library and calculation, Macro program generation, Taper calculation, Tolerance and fit query, Material weight calculation, G/M code lookup

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

**In-app purchases:** none


### LatheCalcPro

[App page](https://appshunter.io/ios/app/lathecalcpro/id6801366781)

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

**In-app purchases:** none


## Frequently asked questions

### Is 车工计算器助手 free?

车工计算器助手 costs $1.99, with no in-app purchases.

### Is LatheCalcPro free?

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

### Do 车工计算器助手 or LatheCalcPro have ads?

Neither 车工计算器助手 nor LatheCalcPro shows ads.

### Which is updated more often, 车工计算器助手 or LatheCalcPro?

车工计算器助手 ships an update every 2 months, and LatheCalcPro every 2 months. Most recently, 车工计算器助手 was updated on October 9, 2026 and LatheCalcPro on October 18, 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.*