Mobile Key v2.5.0
APK · 9 MB · version code 219 · Android 5.0+ · uploaded Dec 22, 2025
- Signature matches the Google Play version Details
Quick check before downloading
Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v3.5.0, uploaded Nov 15, 2025.
- Size: this file is 9 MB; the latest is 43.5 MB (34.5 MB larger).
- Android: this version needs Android 5.0+; the latest needs Android 10+. Use this one if your device runs an older Android release.
- The latest version asks for 11 more permissions: Access adservices ad id, Access adservices attribution, Bluetooth connect, Bluetooth scan, Foreground service connected device, Show notifications, Read basic phone state, Advertising ID….
- The latest version no longer asks for: Approximate location, Precise location, Bluetooth, Bluetooth admin, Request ignore battery optimizations.
File information
- Version
- v2.5.0 (219)
- Uploaded
- Dec 22, 2025
- Size
- 9 MB
- Requires
- Android 5.0+ (API 21)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- 04f4dc03a93d247a588bb0f4dd317065
- Signing certificate (SHA-1)
- B3:6F:01:7D:60:48:6D:02:19:77:49:F1:AE:85:12:30:D5:48:2E:C0
- Signed by
- CN=Unknown, OU=Unknown, O=2N TELEKOMUNIKACE a.s., L=Prague, ST=Unknown, C=CZ
- File name
- cz-quanti-helios-nfc-219-72909647-04f4dc03a93d247a588bb0f4dd317065.apk
- Package
- cz.quanti.helios_nfc
- Downloads (all versions)
- 100K+
- Age rating
- PEGI 3 · Everyone
What's new in v2.5.0
Improvements
- Improve NFC behavior when changing operation mode on some devices
- Add more detailed description of error states when opening door
- Improved performance of Bluetooth pairing
Bug fixes
- Prevent Bluetooth connections becoming unexpectedly stuck
Permissions (16)
This version requests 16 permissions, 2 of them sensitive.
- Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
- Precise location Sensitive android.permission.ACCESS_FINE_LOCATION
- Bluetooth android.permission.BLUETOOTH
- Bluetooth admin android.permission.BLUETOOTH_ADMIN
- Control vibration android.permission.VIBRATE
- Full network access android.permission.INTERNET
- Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
- Nfc android.permission.NFC
- Oppo oppo component safe (custom) oppo.permission.OPPO_COMPONENT_SAFE
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Receive push notifications com.google.android.c2dm.permission.RECEIVE
- Request ignore battery optimizations android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Run foreground services android.permission.FOREGROUND_SERVICE
- Use component (custom) com.huawei.permission.external_app_settings.USE_COMPONENT
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Signature matches the Google Play version Checked by the source store on Dec 22, 2025.
- Certificate issued to “2N TELEKOMUNIKACE a.s.” This is the certificate of the Google Play version.
- Same certificate as the 4 other versions checked
Store checks
- Developer signature verified Dec 22, 2025
- Validated against Google Play Dec 22, 2025
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (4 other versions compared). AAPKs doesn't scan files itself.
How to install Mobile Key on Android 5.0+
You'll need about 18 MB of free space.
- Download the APK — tap Download APK above (9 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap cz-quanti-helios-nfc-219-72909647-04f4dc03a93d247a588bb0f4dd317065.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be 04f4dc03a93d247a588bb0f4dd317065. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open Mobile Key — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 5.0+). Download it again, or pick an older version.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.