Seoul Subway - Official App
v3.8.28 · 79.3 MB · code 25091109
Verify you're human
Solve this to start the download.
File information
UpdatedSep 15, 2025
PublishedFeb 8, 2023
Packagecom.seoulmetro.safety_keeper
Versionv3.8.28 (25091109)
Size79.3 MB
MD5175a8c31f72948aefc33f57fa8e1286b
Min SDK21
ABIsx86, x86-64, armeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA1CD:33:95:9C:19:C6:71:AC:82:A7:49:12:AD:DF:80:C6:0A:EA:99:C2
SignerC=KR
Total downloads1,000,000
This version1,000,000
Developer서울메트로,서울도시철도
Age ratingEveryone
What's new in v3.8.28
Supporting Android SDK 35
Security scan
TRUSTED
- Developer signature verified 2025-09-15
- Signature SHA1 CD:33:95:9C:19:C6:71:AC:82:A7:49:12:AD:DF:80:C6:0A:EA:99:C2
- File MD5 175a8c31f72948aefc33f57fa8e1286b
How to install Seoul Subway - Official App v3.8.28 on Android 5.0 Lollipop+
Takes about 2 minutes. You'll need roughly 79.3 MB of free storage.
- Grab com.seoulmetro.safety_keeper_25091109.apk — hit the Download button above (79.3 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 175a8c31f72948ae…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.seoulmetro.safety_keeper_25091109.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 C=KR. 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 Seoul Subway - Official App — tap Open on the install screen, or find the Seoul Subway - Official App icon in your app drawer (this build targets x86/x86-64/armeabi-v7a/arm64-v8a devices).
Common install errors for Seoul Subway - Official App
- "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 5.0 Lollipop 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-v7a/arm64-v8a native code. Devices with a different CPU will reject it.