
Sleipnir Mobile - Web Browser
The one step browser that once you try you can't let go of, made in Japan!
Fenrir Inc. · jp.co.fenrir.android.sleipnir
- Signature matches the Google Play version Details
At a glance
- Latest version
- v3.8.5 Update 1 (3080581)
- Updated
- Mar 23, 2026 (7 months ago)
- APK size
- 6 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
- Communication (app)
- Listed since
- May 9, 2021 (at least)
- Permissions
- 12 (6 sensitive)
- Website
- fenrir-inc.com
- Developer contact
- [email protected]
About this APK
Sleipnir Mobile - Web Browser is an app by Fenrir Inc. in the Communication category, listed since at least May 2021. 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.
It asks for 12 permissions, 6 of them sensitive, including precise location, camera and record audio. It asks for the same permissions as version 3.8.4.
What's new in v3.8.5 Update 1
Description
From the listing uploaded by “appupdater”.
Version history
3 versions are listed, going back to v3.8.3 Update 1.
Security & authenticity
Signing certificate
- Signature matches the Google Play version Checked by the source store on Mar 23, 2026.
- Certificate issued to “Fenrir 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 not checked yet Mar 23, 2026
- Validated against Google Play Mar 23, 2026
- Signed byCN=Yasuyuki Kashiwagi, OU=Fenrir Inc., O=Fenrir Inc., L=Osaka, ST=Osaka, C=jp
- Signing certificate (SHA-1)57:58:DB:4D:CB:62:EE:BF:75:CE:BB:FE:B6:A8:E5:DF:C6:D1:69:83
- File MD54f9c519b5086c7382e67af9aa93002d7
- 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)
Sleipnir Mobile - Web Browser requests 12 permissions, 6 of them sensitive.
- Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
- Camera Sensitive android.permission.CAMERA
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Precise location Sensitive android.permission.ACCESS_FINE_LOCATION
- Record audio (microphone) Sensitive android.permission.RECORD_AUDIO
- See all installed apps Sensitive android.permission.QUERY_ALL_PACKAGES
- Add home-screen shortcuts com.android.launcher.permission.INSTALL_SHORTCUT
- Full network access android.permission.INTERNET
- Internal broadcast protection (app-defined) jp.co.fenrir.android.sleipnir.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Modify audio settings android.permission.MODIFY_AUDIO_SETTINGS
- View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
- View network connections android.permission.ACCESS_NETWORK_STATE
Required hardware & features
- Basic touch input android.hardware.faketouch
- Location android.hardware.location
- Microphone android.hardware.microphone
- Wi-Fi android.hardware.wifi
Sleipnir Mobile - Web Browser 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 Sleipnir Mobile - Web Browser 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 4f9c519b5086c7382e67af9aa93002d7.