# CMC Swift vs PEEK Sensor

The clearest difference is device support: CMC Swift at 3 against PEEK Sensor's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on July 5, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | CMC Swift | PEEK Sensor |
| --- | --- | --- |
| 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 4 months |
| Monetization | Free | — |
| Size | 127 MB | 41 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [OMICRON electronics GmbH](https://appshunter.io/developer/1233298257) | [PEEK GmbH](https://appshunter.io/developer/1580086371) |

## 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


### PEEK Sensor

[App page](https://appshunter.io/ios/app/peek-sensor/id1580086369)

**In-app purchases:** none


## Frequently asked questions

### Is CMC Swift free?

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

### Is PEEK Sensor free?

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

### Do CMC Swift or PEEK Sensor have ads?

Neither CMC Swift nor PEEK Sensor shows ads.

### Which is updated more often, CMC Swift or PEEK Sensor?

CMC Swift ships an update every 4 months, and PEEK Sensor every 4 months. Most recently, CMC Swift was updated on July 5, 2026 and PEEK Sensor on September 8, 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.*