# Smart vs Voltcraft VC

The clearest difference is update cadence: Voltcraft VC at every 2 months against Smart's every 8 months. Smart's advantage is iOS requirement (8.0 vs 11.0). On price, ads, in-app purchases and device support 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 VC every 2 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Smart | Voltcraft VC |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 27.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 2 MB | 13 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| 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 VC

[App page](https://appshunter.io/ios/app/voltcraft-vc-41/id6740763421)

**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 VC free?

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

### Do Smart or Voltcraft VC have ads?

Neither Smart nor Voltcraft VC shows ads.

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

Smart ships an update every 8 months, and Voltcraft VC every 2 months. Most recently, Smart was updated on November 1, 2026 and Voltcraft VC on October 30, 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.*