# WATTSTUNDE NOVA vs Purgify

The clearest difference is in-app purchases: WATTSTUNDE NOVA at none against Purgify's 1. WATTSTUNDE NOVA also leads on iOS requirement (11.0 vs 26.0). Purgify's advantage is update cadence (every 3 days vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Purgify sells 1 one-off in-app purchase. WATTSTUNDE NOVA asks for nothing beyond the download.

WATTSTUNDE NOVA ships an update every 3 weeks, Purgify every 3 days. The most recent releases landed on October 11, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | WATTSTUNDE NOVA | Purgify |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 14.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Free | — |
| Size | 9 MB | 2 MB |
| Requires iOS | **11.0** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [WATTSTUNDE GmbH](https://appshunter.io/developer/1469009647) | [Cian Striffler](https://appshunter.io/developer/6787660978) |

## What reviewers say

### 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


### Purgify

[App page](https://appshunter.io/ios/app/purgify/id6787660976)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $2.99 | one-time |


## Frequently asked questions

### Is WATTSTUNDE NOVA free?

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

### Is Purgify free?

Purgify is free to download, with in-app purchases available.

### Do WATTSTUNDE NOVA or Purgify have ads?

Neither WATTSTUNDE NOVA nor Purgify shows ads.

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

WATTSTUNDE NOVA ships an update every 3 weeks, and Purgify every 3 days. Most recently, WATTSTUNDE NOVA was updated on October 11, 2026 and Purgify on October 24, 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.*