dxLink21 vs Apollo ProFlow
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
dxLink21
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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.
Apollo ProFlow
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Smart device for balancing of heating and cooling hydronic systems. Data of balancing valves of heading European producers included. Successfully can be used for accurate measuring of very small differential or gauge pressures.
Screenshots
Verdict
dxLink21 and Apollo ProFlow 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 1, 2026 and September 19, 2026 respectively.
| Parameter | dxLink21 | Apollo ProFlow |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 14.7 โ better |
| Further details โ not scored | ||
| Size | 134 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Belparts NV | SV Technics |
In-app purchases
dxLink21
No in-app purchases
Apollo ProFlow
No in-app purchases









