Sleipnir Mobile - Web Browser
v3.8.4 · 6 MB · code 3080480
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File information
UpdatedDec 31, 2025
PublishedMay 9, 2021
Packagejp.co.fenrir.android.sleipnir
Versionv3.8.4 (3080480)
Size6 MB
MD5bb7fdfa3d4f1c9f18f34f10e56ef1864
Min SDK15
ABIsx86, x86-64, armeabi, armeabi-v7a, arm64-v8a, mips, mips64
Malware scanTRUSTED
Signature SHA157:58:DB:4D:CB:62:EE:BF:75:CE:BB:FE:B6:A8:E5:DF:C6:D1:69:83
SignerCN=Yasuyuki Kashiwagi, OU=Fenrir Inc., O=Fenrir Inc., L=Osaka, ST=Osaka, C=jp
Total downloads1,000,000
This version1,000,000
DeveloperFenrir Inc.
Age ratingEveryone
What's new in v3.8.4
Version 3.8.4
・Fixed a problem where the app could crash when adding a new tab.
・Fixed video playback issues on certain websites.
・Minor modifications
・Fixed a problem where the app could crash when adding a new tab.
・Fixed video playback issues on certain websites.
・Minor modifications
Security scan
TRUSTED
- Developer signature verified 2025-12-31
- Signature SHA1 57:58:DB:4D:CB:62:EE:BF:75:CE:BB:FE:B6:A8:E5:DF:C6:D1:69:83
- File MD5 bb7fdfa3d4f1c9f18f34f10e56ef1864
How to install Sleipnir Mobile - Web Browser v3.8.4 on Android API 15+
Takes about 2 minutes. You'll need roughly 6 MB of free storage.
- Grab jp.co.fenrir.android.sleipnir_3080480.apk — hit the Download button above (6 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches bb7fdfa3d4f1c9f1…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find jp.co.fenrir.android.sleipnir_3080480.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read CN=Yasuyuki Kashiwagi, OU=Fenrir Inc., O=Fenrir Inc., L=Osaka, ST=Osaka, C=jp. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open Sleipnir Mobile - Web Browser — tap Open on the install screen, or find the Sleipnir Mobile - Web Browser icon in your app drawer (this build targets x86/x86-64/armeabi/armeabi-v7a/arm64-v8a/mips/mips64 devices).
Common install errors for Sleipnir Mobile - Web Browser
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android API 15 or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.
- Works on one phone but not another — this build ships x86/x86-64/armeabi/armeabi-v7a/arm64-v8a/mips/mips64 native code. Devices with a different CPU will reject it.