# Diametre vs Turning Calculator Pro

The clearest difference is review sentiment: Turning Calculator Pro at 100% against Diametre's 50%. Diametre's advantage is in-app purchases (none vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Turning Calculator Pro sells 1 one-off in-app purchase. Diametre asks for nothing beyond the download.

## The numbers

| Metric | Diametre | Turning Calculator Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/turning-calculator-pro/id6767200756/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Monetization | **Free** | Free with in-app purchases |
| Size | 28 MB | 75 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [franck bertaux](https://appshunter.io/developer/1806891800) | [Shraddhaben Parmar](https://appshunter.io/developer/1889769325) |

## What reviewers say

### Diametre

[App page](https://appshunter.io/ios/app/diametre/id6747874263)

Easily calculate the diameter of your roller shutter or blind axis without disassembly or measuring tools. This practical utility app provides a simple solution for accurate measurements.

**Highlights:** Calculate roller shutter axis diameter, Calculate blind axis diameter, No disassembly required, No caliper needed, Simple and practical interface

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

**In-app purchases:** none


### Turning Calculator Pro

[App page](https://appshunter.io/ios/app/turning-calculator-pro/id6767200756)

This application assists machinists, CNC operators, and engineers with precise turning calculations. It simplifies the process of determining speed, feed, and cutting parameters for lathe and CNC machines, optimizing machining performance and reducing setup time.

**Highlights:** RPM calculator, Feed rate calculation, Cutting speed calculation, Metric and imperial unit support, Quick input with instant results, Designed for real-world machining

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime premium | $12.99 | one-time |


## Frequently asked questions

### Is Diametre free?

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

### Is Turning Calculator Pro free?

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

### Do Diametre or Turning Calculator Pro have ads?

Neither Diametre nor Turning Calculator Pro shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*