# GROB⁴Line vs CoolSpeed

The clearest difference is update cadence: CoolSpeed at every 2 weeks against GROB⁴Line's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

GROB⁴Line ships an update every 2 months, CoolSpeed every 2 weeks. The most recent releases landed on September 7, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | GROB⁴Line | CoolSpeed |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 16 MB | 114 MB |
| Requires iOS | 15.0 | **14.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GROB-WERKE GmbH & Co. KG](https://appshunter.io/developer/1126270873) | [WTO Werkzeug-Einrichtungen GmbH](https://appshunter.io/developer/1533221720) |

## What reviewers say

### GROB⁴Line

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

**Features:** Vision Pro support

**In-app purchases:** none


### CoolSpeed

[App page](https://appshunter.io/ios/app/coolspeed/id1534547293)

**In-app purchases:** none


## Frequently asked questions

### Is GROB⁴Line free?

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

### Is CoolSpeed free?

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

### Do GROB⁴Line or CoolSpeed have ads?

Neither GROB⁴Line nor CoolSpeed shows ads.

### Which is updated more often, GROB⁴Line or CoolSpeed?

GROB⁴Line ships an update every 2 months, and CoolSpeed every 2 weeks. Most recently, GROB⁴Line was updated on September 7, 2026 and CoolSpeed on September 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.*