
IIJ SmartKey
The IIJ SmartKey app produces One-Time Password that conform to TOTP standards.
Internet Initiative Japan Inc. · jp.ad.iij.smartkey2
- Signature matches the Google Play version Details
At a glance
- Latest version
- v2.1.7 (16)
- Updated
- Feb 10, 2026 (8 months ago)
- APK size
- 5.4 MB
- Requires
- Android 4.0.3+ (API 15)
- CPU support
- x86 32-bit, x86 64-bit, ARM (legacy), ARM 32-bit, ARM 64-bit, MIPS, MIPS 64-bit
- Category
- Tools (app)
- Permissions
- 13 (3 sensitive)
- Developer contact
- [email protected]
- Privacy
- Developer's privacy policy
About this APK
IIJ SmartKey is an app by Internet Initiative Japan Inc. in the Tools category. It includes native code for x86 32-bit, x86 64-bit, ARM (legacy), ARM 32-bit, ARM 64-bit, MIPS and MIPS 64-bit, so it runs on practically every phone.
Since version 2.1.5, the APK grew from 4.3 MB to 5.4 MB. It asks for 13 permissions, 3 of them sensitive: camera, find accounts on the device and modify shared storage. It asks for the same permissions as version 2.1.6.
What's new in v2.1.7
Description
From the listing uploaded by “appupdater”.
Version history
3 versions are listed, going back to v2.1.5.
Security & authenticity
Signing certificate
- Signature matches the Google Play version Checked by the source store on Feb 10, 2026.
- Certificate issued to “Internet Initiative Japan Inc.” 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 Feb 10, 2026
- Validated against Google Play Feb 10, 2026
- Signed byOU=Product Division, O=Internet Initiative Japan Inc., L=Chiyoda-Ku, ST=Tokyo, C=JP
- Signing certificate (SHA-1)82:92:0F:96:89:3C:4F:86:50:53:81:02:8E:CF:FC:C5:6C:9E:C1:2D
- File MD5466d89bae03f690f79d2c3a95d6cdced
- 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 (13)
IIJ SmartKey requests 13 permissions, 3 of them sensitive.
- Camera Sensitive android.permission.CAMERA
- Find accounts on the device Sensitive android.permission.GET_ACCOUNTS
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Control vibration android.permission.VIBRATE
- Full network access android.permission.INTERNET
- Get tasks android.permission.GET_TASKS
- Internal broadcast protection (app-defined) jp.ad.iij.smartkey2.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Push messaging (app-defined) jp.ad.iij.smartkey.permission.C2D_MESSAGE
- Receive push notifications com.google.android.c2dm.permission.RECEIVE
- Show notifications android.permission.POST_NOTIFICATIONS
- Use credentials android.permission.USE_CREDENTIALS
- View network connections android.permission.ACCESS_NETWORK_STATE
Required hardware & features
- Basic touch input android.hardware.faketouch
- Portrait screen android.hardware.screen.portrait
IIJ SmartKey APK: questions and answers
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 IIJ SmartKey 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 466d89bae03f690f79d2c3a95d6cdced.