Comparison

GROB⁴Line vs CoolSpeed

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

GROB⁴Line

Features
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GROB-NET⁴Industry uses web technology to create cross-plant transparency throughout the production process. The applications within GROB-NET⁴Industry modularly developed by GROB, network and digitalize production processes to facilitate paperless communication – for even greater productivity. Through the management of users and solutions, GROB4Portal is the safe entry to the digital world. GROB4Line allows a GROB machine to be connected to the Internet. Consequently, it can be monitored and controlled via a smartphone. Combined with the notification function which sends messages (e.g. machine shutdown, alarm messages or job finished) to defined smartphones, the machine operator concerned can respond immediately and minimize unnecessary downtimes. • Mobile, dynamic display of machine data • Information about status, alarm messages, tool and NC program at a glance • E-mail notification for machine shutdown • Definition of alarm messages for proactive e-mail notification • Mobile monitoring of unmanned and lightly-manned machine operation • Historical timeline diagram

About

CoolSpeed

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Official app to use with WTO CoolSpeed® MAX high-speed spindles and WTO Bluetooth pressure gauges for turbine-driven CoolSpeed® high-speed spindles. The app displays the current speed, vibration, temperature and coolant pressure of the high-speed spindles. More functions: - The CoolSpeed® calculator supports the optimum use of CoolSpeed® high-speed spindles - Display of power in watts

Screenshots

GROB⁴Line4 screens
CoolSpeed4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard1 real difference · 5 level
GROB⁴Line versus CoolSpeed: the parameters behind the verdict, then further details
ParameterGROB⁴LineCoolSpeed
PriceFreeFree
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.014.2 — better
Further details — not scored
Size16 MB114 MB
Age rating4+4+
DeveloperGROB-WERKE GmbH & Co. KGWTO Werkzeug-Einrichtungen GmbH

In-app purchases

None

GROB⁴Line

No in-app purchases

None

CoolSpeed

No in-app purchases

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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