# Bivatek Thread Calculator vs Calculate CNC

The clearest difference is in-app purchases: Bivatek Thread Calculator at none against Calculate CNC's 1. Bivatek Thread Calculator also leads on update cadence (every 2 days vs every 5 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Calculate CNC sells 1 in-app purchase, starting at $1.99 per month. Bivatek Thread Calculator asks for nothing beyond the download.

Bivatek Thread Calculator ships an update every 2 days, Calculate CNC every 5 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | Bivatek Thread Calculator | Calculate CNC |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 5 days |
| Size | 41 MB | 6 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Vionni Software L.L.C-FZ](https://appshunter.io/developer/1894468328) | [JEFFREY KYLE THOMPSON](https://appshunter.io/developer/6777596386) |

## What reviewers say

### Bivatek Thread Calculator

[App page](https://appshunter.io/ios/app/bivatek-thread-calculator/id6762510774)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calculate CNC

[App page](https://appshunter.io/ios/app/calculate-cnc-lathe-g-code/id6782482754)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $1.99 | per month |


## Frequently asked questions

### Is Bivatek Thread Calculator free?

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

### Is Calculate CNC free?

Calculate CNC is free to download, with in-app purchases available.

### Do Bivatek Thread Calculator or Calculate CNC have ads?

Neither Bivatek Thread Calculator nor Calculate CNC shows ads.

### Which is updated more often, Bivatek Thread Calculator or Calculate CNC?

Bivatek Thread Calculator ships an update every 2 days, and Calculate CNC every 5 days. Most recently, Bivatek Thread Calculator was updated on October 25, 2026 and Calculate CNC on October 25, 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.*