# Smart vs Voltcraft SEM6000

The clearest difference is review sentiment: Voltcraft SEM6000 at 56% against Smart's 28%. Voltcraft SEM6000 also leads on update cadence (every 3 months vs every 8 months). Smart's advantage is iOS requirement (8.0 vs 12.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Smart ships an update every 8 months, Voltcraft SEM6000 every 3 months. The most recent releases landed on October 18, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Smart | Voltcraft SEM6000 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 27.6% of reviews | **55.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 2 MB | 7 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Conrad Electronic SE](https://appshunter.io/developer/451963782) | [CEI Conrad Electronic International (HK) Limited](https://appshunter.io/developer/756357900) |

## What reviewers say

### Smart

[App page](https://appshunter.io/ios/app/smart-energy-meter/id790074102)

Monitor and control energy consumption with this Bluetooth-connected meter socket. Track voltage, current, wattage, and power factor in real-time. Forecast energy costs and set custom timers or overload protection.

**Highlights:** Real-time energy data (Voltage, Current, Wattage, Power Factor), Energy consumption history and graph, Energy cost forecasting and estimation, Support for multiple energy meters, Programmable socket features (Timer, Scheduler, Overload protection)

**Features:** macOS Compatibility

**In-app purchases:** none


### Voltcraft SEM6000

[App page](https://appshunter.io/ios/app/voltcraft-sem6000/id1280855960)

Control plug-in devices remotely from your smartphone or tablet. Monitor real-time and historical power consumption to identify energy waste and save on electricity bills. Create a safer, more responsive home environment and promote eco-awareness.

**Highlights:** Remote device control, Real-time power consumption monitoring, Historical power usage data, Identify power vampires, Energy saving insights, Eco-awareness promotion

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Smart free?

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

### Is Voltcraft SEM6000 free?

Voltcraft SEM6000 is free to download, with no in-app purchases.

### Do Smart or Voltcraft SEM6000 have ads?

Neither Smart nor Voltcraft SEM6000 shows ads.

### Which is updated more often, Smart or Voltcraft SEM6000?

Smart ships an update every 8 months, and Voltcraft SEM6000 every 3 months. Most recently, Smart was updated on October 18, 2026 and Voltcraft SEM6000 on October 22, 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.*