# Lathe Calculator vs CNC Simulation‑Handbook

The clearest difference is review sentiment: Lathe Calculator at 80% against CNC Simulation‑Handbook's 0%. Lathe Calculator also leads on update cadence (every 5 days vs every 3 weeks). CNC Simulation‑Handbook's advantage is iOS requirement (15.6 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Lathe Calculator sells 1 one-off in-app purchase and CNC Simulation‑Handbook sells 1 in-app purchase, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Lathe Calculator ships an update every 5 days, CNC Simulation‑Handbook every 3 weeks. The most recent releases landed on October 28, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Lathe Calculator | CNC Simulation‑Handbook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lathe-calculator-cnc-tool/id6765566579/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **80.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 25 MB | 31 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [惟 陈](https://appshunter.io/developer/1584601883) | [燕燕 林](https://appshunter.io/developer/1675436596) |

## What reviewers say

### Lathe Calculator

[App page](https://appshunter.io/ios/app/lathe-calculator-cnc-tool/id6765566579)

This tool streamlines CNC turning operations by quickly calculating essential parameters and generating programs. It simplifies complex tasks like thread and taper calculations, tolerance checks, and arc positioning, helping to reduce errors and improve efficiency for machinists and programmers.

**Highlights:** Thread calculation (metric, imperial, unified), Taper calculation, Tolerance and fit analysis, Arc tangency point calculation, Macro programming assistant, Save and reuse parameters, Built-in program library

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Unlock | $24.99 | one-time |


### CNC Simulation‑Handbook

[App page](https://appshunter.io/ios/app/cnc-simulationhandbook/id6779476155)

This app simulates CNC lathe machining workflows, allowing users to practice G-code programming, operational training, and fault diagnosis. It provides a virtual machine control panel, tool setup, and workpiece measurement features for hands-on learning without physical equipment.

**Highlights:** G-code simulation and machining, Virtual machine control panel, Workholding and tool setup, NC-program validation and tool-path preview, Workpiece measurement and compensation, Fault-injection training

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 数控车床仿真尊贵会员 | $1.99 | per 7 days |


## Frequently asked questions

### Is Lathe Calculator free?

Lathe Calculator is free to download, with in-app purchases available.

### Is CNC Simulation‑Handbook free?

CNC Simulation‑Handbook is free to download, with in-app purchases available.

### Do Lathe Calculator or CNC Simulation‑Handbook have ads?

Neither Lathe Calculator nor CNC Simulation‑Handbook shows ads.

### Which is updated more often, Lathe Calculator or CNC Simulation‑Handbook?

Lathe Calculator ships an update every 5 days, and CNC Simulation‑Handbook every 3 weeks. Most recently, Lathe Calculator was updated on October 28, 2026 and CNC Simulation‑Handbook on October 20, 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.*