Key
Key : Your Smartphone as a credential.
Interflex Datensysteme GmbH · com.interflex.key
- Signature matches the Google Play version Details
At a glance
- Latest version
- v2.2.13 (168)
- Updated
- Jul 15, 2026 (3 months ago)
- APK size
- 31.6 MB
- Requires
- Android 12L+ (API 32)
- CPU support
- x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
- Category
- Tools (app)
- Listed since
- Nov 11, 2022 (at least)
- Permissions
- 12 (3 sensitive)
- Website
- interflex.de
- Developer contact
- [email protected]
- Privacy
- Developer's privacy policy
About this APK
Key is an app by Interflex Datensysteme GmbH in the Tools category, listed since at least November 2022. It includes native code for x86 32-bit, x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.
Since version 2.0.0, the APK grew from 5.6 MB to 31.6 MB and the minimum Android version rose from 8.1 to 12L. It asks for 12 permissions, 3 of them sensitive: camera, Bluetooth connect and Bluetooth scan. It asks for the same permissions as version 2.2.1.
What's new in v2.2.13
Description
From the listing uploaded by “appupdater”.
Version history
4 versions are listed, going back to v2.0.0. Since v2.2.13 it requires Android 12L+.
Security & authenticity
Signing certificate
- Signature matches the Google Play version Checked by the source store on Jul 15, 2026.
- Certificate issued to “Interflex Datensysteme GmbH” This is the certificate of the Google Play version.
- Same certificate as the 2 other versions checked
Store checks and file details
- Developer signature verified Jul 15, 2026
- Validated against Google Play Jul 15, 2026
- Signed byO=Interflex Datensysteme GmbH, L=Durchhausen, C=DE
- Signing certificate (SHA-1)4D:E5:6F:07:51:EB:35:F8:A1:0B:6F:0D:DA:1F:F9:7B:D2:C9:10:AB
- File MD55ef88f757fb0891401ae720e02ca837f
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.
Permissions (12)
Key requests 12 permissions, 3 of them sensitive.
- Bluetooth connect Sensitive android.permission.BLUETOOTH_CONNECT
- Bluetooth scan Sensitive android.permission.BLUETOOTH_SCAN
- Camera Sensitive android.permission.CAMERA
- Control vibration android.permission.VIBRATE
- Full network access android.permission.INTERNET
- Internal broadcast protection (app-defined) com.interflex.key.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Nfc android.permission.NFC
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Run foreground services android.permission.FOREGROUND_SERVICE
- View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
- View network connections android.permission.ACCESS_NETWORK_STATE
Required hardware & features
- Bluetooth android.hardware.bluetooth
- Bluetooth Low Energy android.hardware.bluetooth_le
- Camera android.hardware.camera
- Basic touch input android.hardware.faketouch
- Portrait screen android.hardware.screen.portrait
- Wi-Fi android.hardware.wifi
Key APK: questions and answers
Is there a version of Key for older Android phones?
The current version needs Android 12L or later. Version 2.2.1 is the newest listed build that installs on Android 11 and later. Get version 2.2.1 · All versions
Can I install this APK over the version I already have?
Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.
Is the Key APK safe?
No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is 5ef88f757fb0891401ae720e02ca837f.
