Smart vs Voltcraft VC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Smart
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.
- 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)
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Smart-Energy-Meter is a Bluetooth 4.0 connected Energy Meter Socket. It can seamlessly transmit your energy data: Voltage, Current, Wattage, Power Factor… to your Smart Phone. Besides, your Smart Phone can be your controller for the Socket. Features Record energy data: Voltage, Current, Wattage, Power Factor Energy consumption: History and Graph Display of minutes and hours Energy Cost: Forecast and Cost estimation of daily, monthly, yearly Support multi energy meter measurement at real time Set program to Socket: Timer, Scheduler, Overload protection, Low Standby power cut off Compatibility iPhone 4S, iPhone 5, iPhone5S, iPhone 5C, iPhone 6, iPhone 6 Plus iPod Touch 5th generation iPad 3rd generation (New iPad) iPad mini Requirement iOS 7.0 or later App Demo http://youtu.be/e5Sik6YCRu0
Voltcraft VC
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Compatible with Voltcraft's VC-41 Series socket tester, the App allows the user to: • Stream data to iPhone or iPad internal memory, with real-time remote viewing • Adjust sample rate • Export data in Excel® format • Share data files directly from application • Take snapshots of the measurement area with the connected iPhone or iPad camera • Store over 15k readings with the VC-41 wireless datalogging module, for download to Phone or Tablet, with programmable datalogger file size
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Smart | Voltcraft VC |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 27.6% of reviews | — |
| Update frequency | Every 8 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 2 MB | 13 MB |
| Age rating | 4+ | 17+ |
| Developer | Conrad Electronic SE | CEI Conrad Electronic International (HK) Limited |
In-app purchases
Smart
No in-app purchases
Voltcraft VC
No in-app purchases
