# Voltaware Home vs CK

The clearest difference is update cadence: Voltaware Home at every 3 weeks against CK's every 16 months. CK's advantage is iOS requirement (9.0 vs 17.0). 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.

Voltaware Home ships an update every 3 weeks, CK every 16 months. The most recent releases landed on November 2, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Voltaware Home | CK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/voltaware-home/id1035706288/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 16 months |
| Monetization | Free | — |
| Size | 16 MB | 25 MB |
| Requires iOS | 17.0 | **9.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [voltaware.com](https://appshunter.io/developer/982220384) | [CARL KAMMERLING INTERNATIONAL LIMITED](https://appshunter.io/developer/1669128786) |

## What reviewers say

### Voltaware Home

[App page](https://appshunter.io/ios/app/voltaware-home/id1035706288)

Monitor your home's energy usage in real-time to understand consumption patterns, identify excessive use, and reduce electricity costs. This service helps you lower your carbon footprint and save money on your electricity bill.

**Highlights:** Real-time electricity consumption viewing, Appliance-specific consumption breakdown, Daily/monthly energy consumption and cost tracking, Smart sensor for usage pattern detection, Carbon footprint reduction guidance

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

**In-app purchases:** none


### CK

[App page](https://appshunter.io/ios/app/ck-tools/id1669128784)

**In-app purchases:** none


## Frequently asked questions

### Is Voltaware Home free?

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

### Is CK free?

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

### Do Voltaware Home or CK have ads?

Neither Voltaware Home nor CK shows ads.

### Which is updated more often, Voltaware Home or CK?

Voltaware Home ships an update every 3 weeks, and CK every 16 months. Most recently, Voltaware Home was updated on November 2, 2026 and CK on October 27, 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.*