# Fiamma vs WATTSTUNDE NOVA

The clearest difference is iOS requirement: Fiamma at 8.0 against WATTSTUNDE NOVA's 11.0. On price, update cadence, 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.

Fiamma ships an update every 2 weeks, WATTSTUNDE NOVA every 3 weeks. The most recent releases landed on October 6, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Fiamma | WATTSTUNDE NOVA |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 14.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | — | Free |
| Size | 57 MB | 9 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ELEKTRONIC COMPONENTS SRL](https://appshunter.io/developer/1021607195) | [WATTSTUNDE GmbH](https://appshunter.io/developer/1469009647) |

## What reviewers say

### Fiamma

[App page](https://appshunter.io/ios/app/fiamma/id1545123381)

**Features:** macOS Compatibility

**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 Fiamma free?

Fiamma 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 Fiamma or WATTSTUNDE NOVA have ads?

Neither Fiamma nor WATTSTUNDE NOVA shows ads.

### Which is updated more often, Fiamma or WATTSTUNDE NOVA?

Fiamma ships an update every 2 weeks, and WATTSTUNDE NOVA every 3 weeks. Most recently, Fiamma was updated on October 6, 2026 and WATTSTUNDE NOVA on October 11, 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.*