Comparison

KEMPER HS2 vs dxLink21

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

Head to head
About

KEMPER HS2

Configure and manage your KHS-HS2 Hygiene-Flushing Box. View settings, read flushing logs, and easily update firmware for your device.

Highlights
  • Configure Hygiene-Flushing Box
  • Display adjustment values
  • Read flushing logs
  • Transmit firmware updates
  • Manage KHS-HS2 settings
Features
Read full description

With the KEMPER HS2 app you can totally configure the KHS-HS2 Hygiene-Flushing Box. It facilitates displaying the adjustment values and reads out the flushing logs. It is simple to transmit firmware updates for the KHS-HS2 through the app.

About

dxLink21

Features
Read full description

We innovate. Create. Together with you. A better climate. This App allows users to wirelessly connect to Belparts dynamx smart HVAC valves, used for heating and cooling applications in buildings. The user will be able to monitor the valve's activity and access data from the HVAC control process. Moreover it allows authorized users to configure the specific valve settings. There is no easier way to get your hydronic systems installed and properly commissioned than with the dynamx App! All the information you need is right there, on your smartphone or tablet. In dxLink21 App, authorized users can READS the basic settings and actual values of the valve. Additionally, they get access to advanced settings needed for commissioning of the valve. In order to receive the access, please contact your local representative for more information. ---------- Belparts is specialized in the development, production and marketing of components for the automation of HVAC systems (Heating, Ventilation, Air Conditioning) in buildings. Control valves, actuators, sensors and terminal controls are at the roots of its core competency. With the Dynamic Flow Networking concept, Belparts introduces a new method for the comfort control & energy management in buildings.

Screenshots

KEMPER HS24 screens
dxLink213 screens

Verdict

The call

KEMPER HS2 and dxLink21 are too close to call on the numbers: across 6 compared parameters โ€” price, update cadence, ads and in-app purchases among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

KEMPER HS2 ships an update every 4 months, dxLink21 every 3 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

ScorecardNo meaningful differences
KEMPER HS2 versus dxLink21: the parameters behind the verdict, then further details
ParameterKEMPER HS2dxLink21
PriceFreeFree
Positive reviews100.0% of reviewsโ€”
Update frequencyEvery 4 monthsEvery 3 months โ€” better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeโ€”
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 โ€” better
Further details โ€” not scored
Size29 MB134 MB
Age rating4+4+
DeveloperGebr. Kemper GmbH + Co. KGBelparts NV

In-app purchases

None

KEMPER HS2

No in-app purchases

None

dxLink21

No in-app purchases

Questions

Is KEMPER HS2 free?
KEMPER HS2 is free to download, with no in-app purchases.
Is dxLink21 free?
dxLink21 is free to download, with no in-app purchases.
Do KEMPER HS2 or dxLink21 have ads?
Neither KEMPER HS2 nor dxLink21 shows ads.
Which is updated more often, KEMPER HS2 or dxLink21?
KEMPER HS2 ships an update every 4 months, and dxLink21 every 3 months. Most recently, KEMPER HS2 was updated on November 1, 2026 and dxLink21 on November 3, 2026.

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