# WATTSTUNDE vs My EZA

The clearest difference is update cadence: My EZA at every 3 months against WATTSTUNDE's every 10 months. 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.

WATTSTUNDE ships an update every 10 months, My EZA every 3 months. The most recent releases landed on September 22, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | WATTSTUNDE | My EZA |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 2 MB | 13 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [WATTSTUNDE GmbH](https://appshunter.io/developer/1469009647) | [SUNROAD EQUIPMENT](https://appshunter.io/developer/1729757949) |

## What reviewers say

### WATTSTUNDE

[App page](https://appshunter.io/ios/app/wattstunde/id1469009648)

Monitor your WATTSTUNDE Lithium Ion batteries wirelessly from your phone. Track cycle life, state of charge, voltage, current, and temperature for each battery independently. View battery events and signal levels with easy-to-read gauges.

**Highlights:** Wireless battery connection, Independent BMS access, Track cycle life, State of Charge (SOC) percentage, Display voltage, current, and temperature, Battery events display

**Features:** macOS Compatibility

**In-app purchases:** none


### My EZA

[App page](https://appshunter.io/ios/app/my-eza/id1551120760)

Monitor your compatible batteries via Bluetooth. View real-time data like voltage, capacity, cycles, temperature, and current. Connects to one battery at a time within an 8m range.

**Highlights:** Bluetooth 5.0 connectivity, Real-time battery voltage, Available capacity (Ah), Cycle count, Temperature monitoring (°C), Remaining capacity (%), Instantaneous current (A)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WATTSTUNDE free?

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

### Is My EZA free?

My EZA is free to download, with no in-app purchases.

### Do WATTSTUNDE or My EZA have ads?

Neither WATTSTUNDE nor My EZA shows ads.

### Which is updated more often, WATTSTUNDE or My EZA?

WATTSTUNDE ships an update every 10 months, and My EZA every 3 months. Most recently, WATTSTUNDE was updated on September 22, 2026 and My EZA on June 1, 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.*