# LEHMANN Transponder vs Tratc

The clearest difference is update cadence: Tratc at monthly against LEHMANN Transponder's every 10 months. Tratc also leads on iOS requirement (12.0 vs 18.6). 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.

LEHMANN Transponder ships an update every 10 months, Tratc monthly. The most recent releases landed on October 27, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | LEHMANN Transponder | Tratc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Monthly** |
| Size | 3 MB | 37 MB |
| Requires iOS | 18.6 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lehmann Vertriebsges. mbH & Co. KG](https://appshunter.io/developer/980603055) | [IT Galerija UAB](https://appshunter.io/developer/1679730349) |

## What reviewers say

### LEHMANN Transponder

[App page](https://appshunter.io/ios/app/lehmann-transponder/id1637886496)

**In-app purchases:** none


### Tratc

[App page](https://appshunter.io/ios/app/tratc/id6670566688)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LEHMANN Transponder free?

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

### Is Tratc free?

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

### Do LEHMANN Transponder or Tratc have ads?

Neither LEHMANN Transponder nor Tratc shows ads.

### Which is updated more often, LEHMANN Transponder or Tratc?

LEHMANN Transponder ships an update every 10 months, and Tratc monthly. Most recently, LEHMANN Transponder was updated on October 27, 2026 and Tratc on October 14, 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.*