
Octopus Authenticator
Authenticator with multi-layered authentication for device and user
Secret Double Octopus · com.doubleoctopus.authenticator
- Signature matches the Google Play version Details
At a glance
- Latest version
- v6.7.0 (490)
- Updated
- Sep 9, 2026 (1 month ago)
- APK size
- 41.1 MB
- Requires
- Android 9+ (API 28)
- CPU support
- x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
- Graphics
- OpenGL ES 2.0+
- Category
- Productivity (app)
- Listed since
- Apr 7, 2021 (at least)
- Permissions
- 15 (3 sensitive)
- Website
- doubleoctopus.com
- Developer contact
- [email protected]
- Privacy
- Developer's privacy policy
About this APK
Octopus Authenticator is an app by Secret Double Octopus in the Productivity category, listed since at least April 2021. 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 5.7.0, the APK grew from 8.6 MB to 41.1 MB and the minimum Android version rose from 8.0 to 9. It asks for 15 permissions, 3 of them sensitive: camera, Bluetooth connect and Bluetooth scan. It asks for the same permissions as version 6.6.0.
What's new in v6.7.0
Description
From the listing uploaded by “appupdater”.
Version history
5 versions are listed, going back to v5.7.0. Since v6.2.0 it requires Android 9+.
Security & authenticity
Signing certificate
- Signature matches the Google Play version Checked by the source store on Sep 9, 2026.
- Certificate issued to “SDO” This is the certificate of the Google Play version.
- Same certificate as the 4 other versions checked
Store checks and file details
- Developer signature verified Sep 9, 2026
- Validated against Google Play Sep 9, 2026
- Signed byCN=Gil Shapira, OU=R&D, O=SDO
- Signing certificate (SHA-1)A9:63:99:8E:26:A6:4E:91:91:B9:9C:1C:C9:0E:0B:C7:E1:E5:B2:4F
- File MD55a0a538ce62f7ddce82ba505a8dd7975
- 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 (4 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.
Permissions (15)
Octopus Authenticator requests 15 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.doubleoctopus.authenticator.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Receive push notifications com.google.android.c2dm.permission.RECEIVE
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Run foreground services android.permission.FOREGROUND_SERVICE
- Show notifications android.permission.POST_NOTIFICATIONS
- Use biometric hardware android.permission.USE_BIOMETRIC
- Use fingerprint hardware android.permission.USE_FINGERPRINT
- Use full screen intent android.permission.USE_FULL_SCREEN_INTENT
- View network connections android.permission.ACCESS_NETWORK_STATE
Required hardware & features
- Bluetooth android.hardware.bluetooth
- Basic touch input android.hardware.faketouch
- Location android.hardware.location
- Portrait screen android.hardware.screen.portrait
Octopus Authenticator APK: questions and answers
Is there a version of Octopus Authenticator for older Android phones?
The current version needs Android 9 or later. Version 5.7.0 is the newest listed build that installs on Android 8.0 and later. Get version 5.7.0 · 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 Octopus Authenticator 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 4 other versions checked. After downloading, check that the file's MD5 is 5a0a538ce62f7ddce82ba505a8dd7975.