nextvoice vs Dux HP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
nextvoice
Read full descriptionHide full description
The Nextvoice Softphone allows you to provide your users with a reliable, easy to set up mobile client (setup can be as simple as scanning a QR code).
Dux HP
Read full descriptionHide full description
When connected to the internet (WiFi) or Bluetooth, you can monitor the Dux EcoSmart heat pumps energy use & operating modes via the Dux HP App. The App offers several pre-programmed operating modes which can be selected to maximise energy savings or set the heat pump operating mode to suit your individual hot water requirements. Auto This is the default mode for the water heater and will heat the tank to 60ºC. In this mode, the heat pump system will be used to heat the water when the ambient temperature is within –6ºC to 45ºC. Eco In this mode, only the heat pump system can operate to heat the water. The backup heating element will not operate to heat water and may only be used to prevent freezing of water in the tank. Boost In this mode, both the heating element and heat pump system will operate together to heat the water. This mode can be used to maximise the units recovery, reducing heating time. Holiday This mode can be used if the water heater is not expected to be used for a long duration. Scheduling The water heater can be scheduled to operate only at particular times of the day using the “Weekly programming”. It’s a great option for households on time of use tariffs or when connected to solar PV systems.
Screenshots
Verdict
The clearest difference is update cadence: Dux HP at weekly against nextvoice's every 3 months. Dux HP also leads on device support (3 vs 1) and iOS requirement (11.0 vs 16.0). On price, 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.
nextvoice ships an update every 3 months, Dux HP weekly. The most recent releases landed on September 25, 2026 and September 27, 2026 respectively.
| Parameter | nextvoice | Dux HP |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 109 MB | 37 MB |
| Age rating | 17+ | 17+ |
| Developer | Vadacom Limited | Linkio |
In-app purchases
nextvoice
No in-app purchases
Dux HP
No in-app purchases









