# CMC Swift vs LSE SmartViewer

The clearest difference is update cadence: LSE SmartViewer at every 3 weeks against CMC Swift's every 4 months. LSE SmartViewer also leads on iOS requirement (11.0 vs 15.0). 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.

CMC Swift ships an update every 4 months, LSE SmartViewer every 3 weeks. The most recent releases landed on October 7, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | CMC Swift | LSE SmartViewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cmc-swift/id1498901607/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 127 MB | 158 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [OMICRON electronics GmbH](https://appshunter.io/developer/1233298257) | [LS ELECTRIC Co., Ltd.](https://appshunter.io/developer/1121925468) |

## What reviewers say

### CMC Swift

[App page](https://appshunter.io/ios/app/cmc-swift/id1498901607)

Control Omicron CMCs to output analog voltages and currents, feed in binary signals, or measure them. Perform wiring and control system checks, as well as trip tests for protective functions quickly and easily. It also facilitates polarity checks when used with a handheld CPOL device.

**Highlights:** Output analog voltages and currents, Feed in binary signals, Measure binary signals, Perform wiring and control system checks, Conduct trip tests for protective functions, Perform polarity checks with CPOL device

**Features:** macOS Compatibility

**In-app purchases:** none


### LSE SmartViewer

[App page](https://appshunter.io/ios/app/lse-smartviewer/id6503331678)

**In-app purchases:** none


## Frequently asked questions

### Is CMC Swift free?

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

### Is LSE SmartViewer free?

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

### Do CMC Swift or LSE SmartViewer have ads?

Neither CMC Swift nor LSE SmartViewer shows ads.

### Which is updated more often, CMC Swift or LSE SmartViewer?

CMC Swift ships an update every 4 months, and LSE SmartViewer every 3 weeks. Most recently, CMC Swift was updated on October 7, 2026 and LSE SmartViewer on October 25, 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.*