# GROB⁴Line vs Machining Calculator Tool

The clearest difference is in-app purchases: GROB⁴Line at none against Machining Calculator Tool's 1. GROB⁴Line also leads on ads (none vs shown). Machining Calculator Tool's advantage is iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Machining Calculator Tool sells 1 one-off in-app purchase. GROB⁴Line asks for nothing beyond the download.

## The numbers

| Metric | GROB⁴Line | Machining Calculator Tool |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | — |
| Size | 16 MB | 69 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GROB-WERKE GmbH & Co. KG](https://appshunter.io/developer/1126270873) | [Nanjibhai Gorasiya](https://appshunter.io/developer/1834066312) |

## What reviewers say

### GROB⁴Line

[App page](https://appshunter.io/ios/app/grobline/id1126270874)

**Features:** Vision Pro support

**In-app purchases:** none


### Machining Calculator Tool

[App page](https://appshunter.io/ios/app/machining-calculator-tool/id6766793027)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime premium | $9.99 | one-time |


## Frequently asked questions

### Is GROB⁴Line free?

GROB⁴Line is free to download, with no in-app purchases.

### Is Machining Calculator Tool free?

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

### Do GROB⁴Line or Machining Calculator Tool have ads?

Machining Calculator Tool shows ads; GROB⁴Line does not.

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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.*