DR. KAISER vs HP arms
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DR. KAISER
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The new DR. KAISER app makes it possible to calculate all relevant parameters related to dressing and grinding. The app is aimed at inexperienced users as well as experts. Guided-Mode The new Guided-Mode guides you step-by-step through the selection of the optimal dressing parameters for your grinding application. Expert mode The Expert-Mode supports experienced users in the calculation of dressing parameters. Export function All calculated parameters can be exported and archived as a PDF file. For this purpose, the app offers the option of providing the calculated parameters with information on the user, machine and application. Multilingual The app can be set to different languages to provide full functionality to all users. Metric and imperial system All parameters can be calculated in metric or imperial system, so that all users can work with their preferred units.
HP arms
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The HP arms app makes configuring and supporting the range of Renishaw High Precision tool setting arms simple. Intended for suitably trained installation and maintenance engineers, the app provides a convenient, single point of reference for typical configuration, maintenance and troubleshooting tasks. The app is easy-to-use with detailed animations, images, help text and step-by-step instructions.
Screenshots
Verdict
The clearest difference is iOS requirement: HP arms at 12.0 against DR. KAISER's 15.0. On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
DR. KAISER ships an update every 5 months, HP arms every 6 months. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.
| Parameter | DR. KAISER | HP arms |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 27 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | DR. KAISER DIAMANTWERKZEUGE GmbH & Co. KG | Renishaw plc |
In-app purchases
DR. KAISER
No in-app purchases
HP arms
No in-app purchases








