# NDS Energy vs WATTSTUNDE NOVA

The clearest difference is update cadence: WATTSTUNDE NOVA at every 3 weeks against NDS Energy's every 2 months. WATTSTUNDE NOVA also leads on iOS requirement (11.0 vs 13.2). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

NDS Energy ships an update every 2 months, WATTSTUNDE NOVA every 3 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | NDS Energy | WATTSTUNDE NOVA |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **22.2% of reviews** | 14.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 27 MB | 9 MB |
| Requires iOS | 13.2 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DOMETIC MOBILE POWER ITALY S.r.l.](https://appshunter.io/developer/1715492783) | [WATTSTUNDE GmbH](https://appshunter.io/developer/1469009647) |

## What reviewers say

### NDS Energy

[App page](https://appshunter.io/ios/app/nds-energy/id1537808417)

Monitor and manage your N-BUS connected devices remotely. Control battery status, solar charging, and appliance consumption. Set up devices and update firmware directly from your smartphone.

**Highlights:** Monitor battery SoC and solar charging, Control appliance consumption, Turn devices on/off remotely, Set up devices with a touch, Update device firmware, Manage N-BUS connected devices

**In-app purchases:** none


### WATTSTUNDE NOVA

[App page](https://appshunter.io/ios/app/wattstunde-nova/id6480045065)

Monitor your WATTSTUNDE Smart Lithium Battery via Bluetooth 5.0 BLE. View real-time voltage, current, temperature, and cycle life data for your LiFePO4 battery within a 5-meter range. Connect to a single battery at a time for detailed performance insights.

**Highlights:** Bluetooth 5.0 BLE connectivity, Monitor voltage, current, temperature, Track cycle life, Real-time data display, Connect to one battery at a time

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NDS Energy free?

NDS Energy is free to download, with no in-app purchases.

### Is WATTSTUNDE NOVA free?

WATTSTUNDE NOVA is free to download, with no in-app purchases.

### Do NDS Energy or WATTSTUNDE NOVA have ads?

Neither NDS Energy nor WATTSTUNDE NOVA shows ads.

### Which is updated more often, NDS Energy or WATTSTUNDE NOVA?

NDS Energy ships an update every 2 months, and WATTSTUNDE NOVA every 3 weeks. Most recently, NDS Energy was updated on November 3, 2026 and WATTSTUNDE NOVA on October 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*