# WatchPower vs VoltWork

The clearest difference is in-app purchases: WatchPower at none against VoltWork's 1. WatchPower also leads on iOS requirement (11.0 vs 13.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. VoltWork sells 1 one-off in-app purchase. WatchPower asks for nothing beyond the download.

WatchPower ships an update every 3 months, VoltWork every 2 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | WatchPower | VoltWork |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (75 ratings)](https://appshunter.io/ios/app/watchpower/id1487569321/reviews)** | — |
| Number of ratings | **75** | — |
| Positive reviews | 17.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 22 MB | 30 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [祥梯 孟](https://appshunter.io/developer/1070155084) | [SG APPs](https://appshunter.io/developer/1507658418) |

## What reviewers say

### WatchPower

[App page](https://appshunter.io/ios/app/watchpower/id1487569321)

Monitor off-grid inverters remotely via Wi-Fi. View device status, configure settings, receive alerts for warnings or alarms, and record historical data.

**Highlights:** Monitor inverter status, Configure device settings, Receive warning/alarm notifications, Record device data history, Wi-Fi module integration

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 💻 Useful for monitoring and configuring solar/battery systems
- 🔧 Allows remote configuration of inverter settings
- 🤖 Reliable when it works

**What reviewers complain about**

- 🐛 Frequent connection issues and data delays
- 🕰️ Slow refresh rate and outdated information
- 🤔 Inconsistent and unreliable performance
- 📊 Lack of historical data and graphing features
- 🤯 Difficult setup and registration process

**Reported bugs**

- Devices disappearing from the app
- Incorrect battery capacity and power readings
- Crashes and freezes when trying to access data

**Requested features**

- Add real-time monitoring and updates
- Improve user interface and add more visualizations
- Implement push notifications for important events
- Allow password recovery and account management
- Add support for Bluetooth connectivity


### VoltWork

[App page](https://appshunter.io/ios/app/voltwork-electrician-calc/id6793026216)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Unlock | $3.99 | one-time |


## Frequently asked questions

### Is WatchPower free?

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

### Is VoltWork free?

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

### Do WatchPower or VoltWork have ads?

Neither WatchPower nor VoltWork shows ads.

### Which is updated more often, WatchPower or VoltWork?

WatchPower ships an update every 3 months, and VoltWork every 2 months. Most recently, WatchPower was updated on November 3, 2026 and VoltWork on October 31, 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.*