Cardboard
v4.0 · 10.8 MB · code 251007204
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File information
UpdatedMar 5, 2026
PublishedApr 16, 2021
Packagecom.google.samples.apps.cardboarddemo
Versionv4.0 (251007204)
Size10.8 MB
MD53555896422c6e18de712415aed689a69
Min SDK29
ABIsarmeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA1F9:30:85:A6:E5:01:A2:D3:28:AA:CA:03:B3:7F:19:A1:1C:D0:97:65
SignerCN=paperscope, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Total downloads10,000,000
This version10,000,000
DeveloperGoogle Inc.
Age ratingEveryone
What's new in v4.0
Key updates:
• We've completely rebuilt the Cardboard demo app with the new Cardboard open-source software (OSS) SDK to improve performance and stability. You can learn more about the project on our GitHub repository: https://github.com/googlevr/cardboard.
• We've completely rebuilt the Cardboard demo app with the new Cardboard open-source software (OSS) SDK to improve performance and stability. You can learn more about the project on our GitHub repository: https://github.com/googlevr/cardboard.
Security scan
TRUSTED
- Developer signature verified 2026-03-05
- Signature SHA1 F9:30:85:A6:E5:01:A2:D3:28:AA:CA:03:B3:7F:19:A1:1C:D0:97:65
- File MD5 3555896422c6e18de712415aed689a69
How to install Cardboard v4.0 on Android 10+
Takes about 2 minutes. You'll need roughly 10.8 MB of free storage.
- Grab com.google.samples.apps.cardboarddemo_251007204.apk — hit the Download button above (10.8 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 3555896422c6e18d…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.google.samples.apps.cardboarddemo_251007204.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=paperscope, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US. 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 Cardboard — tap Open on the install screen, or find the Cardboard icon in your app drawer (this build targets armeabi-v7a/arm64-v8a devices).
Common install errors for Cardboard
- "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 10 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 armeabi-v7a/arm64-v8a native code. Devices with a different CPU will reject it.