OTOUSAN QR
v3.0 · 2.7 MB · code 22
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File information
UpdatedJan 14, 2026
PublishedJan 14, 2026
Packagecom.sb.qrcode
Versionv3.0 (22)
Size2.7 MB
MD57d788c1f5eb654a5e04b3cc709b71769
Min SDK16
Malware scanTRUSTED
Signature SHA1CB:C9:F7:AC:BC:8A:08:69:12:30:71:D1:0D:6C:8F:2E:CE:DC:1F:91
SignerCN=SBM
Total downloads1,000,000
This version1,000,000
DeveloperSoftBank Corp.
Age ratingEveryone
What's new in v3.0
We support for Android 10.0.
Security scan
TRUSTED
- Developer signature verified 2026-01-14
- Signature SHA1 CB:C9:F7:AC:BC:8A:08:69:12:30:71:D1:0D:6C:8F:2E:CE:DC:1F:91
- File MD5 7d788c1f5eb654a5e04b3cc709b71769
How to install OTOUSAN QR v3.0 on Android API 16+
Takes about 2 minutes. You'll need roughly 2.7 MB of free storage.
- Grab com.sb.qrcode_22.apk — hit the Download button above (2.7 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 7d788c1f5eb654a5…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.sb.qrcode_22.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=SBM. 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 OTOUSAN QR — tap Open on the install screen, or find the OTOUSAN QR icon in your app drawer.
Common install errors for OTOUSAN QR
- "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 16 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.