# Voltcraft SEM6000 vs Iron Switch

The clearest difference is in-app purchases: Voltcraft SEM6000 at none against Iron Switch's 3. Voltcraft SEM6000 also leads on iOS requirement (12.0 vs 15.0). Iron Switch's advantage is update cadence (weekly vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Iron Switch sells 3 in-app purchases, starting at $9.99 per month. Voltcraft SEM6000 asks for nothing beyond the download.

Voltcraft SEM6000 ships an update every 3 months, Iron Switch weekly. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Voltcraft SEM6000 | Iron Switch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/iron-switch-dead-man-switch/id6788568339/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 55.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | **Free** | Freemium |
| Size | 7 MB | 23 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CEI Conrad Electronic International (HK) Limited](https://appshunter.io/developer/756357900) | [Felipe Oliveira](https://appshunter.io/developer/1896341825) |

## What reviewers say

### 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


### Iron Switch

[App page](https://appshunter.io/ios/app/iron-switch-dead-man-switch/id6788568339)

Securely store encrypted digital assets like crypto keys and passwords. If you stop checking in, this app automatically delivers access to designated recipients, ensuring your digital legacy is protected.

**Highlights:** Encrypted vault for sensitive data, Automated delivery to trusted recipients, Customizable check-in intervals, Zero-knowledge AES-256 encryption, Face ID/Touch ID app lock, Offline recovery kit

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Operator Monthly | $9.99 | per month |
| Commander Monthly | $29.99 | per month |
| Legacy Lifetime | $499.99 | one-time |


## Frequently asked questions

### Is Voltcraft SEM6000 free?

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

### Is Iron Switch free?

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

### Do Voltcraft SEM6000 or Iron Switch have ads?

Neither Voltcraft SEM6000 nor Iron Switch shows ads.

### Which is updated more often, Voltcraft SEM6000 or Iron Switch?

Voltcraft SEM6000 ships an update every 3 months, and Iron Switch weekly. Most recently, Voltcraft SEM6000 was updated on October 14, 2026 and Iron Switch on October 13, 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.*