# TC Mobile I/O vs Lichtregulator

TC Mobile I/O and Lichtregulator are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

TC Mobile I/O ships an update every 28 months, Lichtregulator every 20 months. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | TC Mobile I/O | Lichtregulator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 20 months** |
| Monetization | Free | — |
| Size | 12 MB | 17 MB |
| Requires iOS | 11.0.0 | **10.3** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Phoenix Contact GmbH & Co. KG](https://appshunter.io/developer/426916392) | [Elektron Berlin](https://appshunter.io/developer/1486563275) |

## What reviewers say

### TC Mobile I/O

[App page](https://appshunter.io/ios/app/tc-mobile-io/id1139160079)

Control your TC MOBILE I/O X200 SMS relay with this application. It displays device status and sends commands, eliminating the need for manual SMS writing. Access datasheets and switch between German and English languages.

**Highlights:** Device status indication, Send switching commands, Eliminates manual SMS writing, Data sheet download, Multilingual support (German, English)

**Features:** macOS Compatibility

**In-app purchases:** none


### Lichtregulator

[App page](https://appshunter.io/ios/app/lichtregulator/id1486563396)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TC Mobile I/O free?

TC Mobile I/O is free to download, with no in-app purchases.

### Is Lichtregulator free?

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

### Do TC Mobile I/O or Lichtregulator have ads?

Neither TC Mobile I/O nor Lichtregulator shows ads.

### Which is updated more often, TC Mobile I/O or Lichtregulator?

TC Mobile I/O ships an update every 28 months, and Lichtregulator every 20 months. Most recently, TC Mobile I/O was updated on October 24, 2026 and Lichtregulator on October 26, 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.*