# IMAporter MobileAccess Key vs LEHMANN Transponder

The clearest difference is update cadence: IMAporter MobileAccess Key at every 5 months against LEHMANN Transponder's every 10 months. IMAporter MobileAccess Key also leads on iOS requirement (15.6 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.

IMAporter MobileAccess Key ships an update every 5 months, LEHMANN Transponder every 10 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | IMAporter MobileAccess Key | LEHMANN Transponder |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 10 months |
| Monetization | Free | — |
| Size | 12 MB | 3 MB |
| Requires iOS | **15.6** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Institut Mikroelektronickych Aplikaci s.r.o.](https://appshunter.io/developer/1124838112) | [Lehmann Vertriebsges. mbH & Co. KG](https://appshunter.io/developer/980603055) |

## What reviewers say

### IMAporter MobileAccess Key

[App page](https://appshunter.io/ios/app/imaporter-mobileaccess-key/id1124838113)

Transform your iPhone into a secure digital key for effortless access to doors using NFC and Bluetooth. This app supports various credentials and integrates with many access control systems, making it ideal for homes and businesses.

**Highlights:** NFC and BLE identification, Contactless card support, Fast smartphone access, Compatible with access systems, Easy setup and use, Centralized management option

**Features:** macOS Compatibility

**In-app purchases:** none


### LEHMANN Transponder

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

**In-app purchases:** none


## Frequently asked questions

### Is IMAporter MobileAccess Key free?

IMAporter MobileAccess Key is free to download, with no in-app purchases.

### Is LEHMANN Transponder free?

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

### Do IMAporter MobileAccess Key or LEHMANN Transponder have ads?

Neither IMAporter MobileAccess Key nor LEHMANN Transponder shows ads.

### Which is updated more often, IMAporter MobileAccess Key or LEHMANN Transponder?

IMAporter MobileAccess Key ships an update every 5 months, and LEHMANN Transponder every 10 months. Most recently, IMAporter MobileAccess Key was updated on November 2, 2026 and LEHMANN Transponder on November 3, 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.*