Calculus in Virtual Reality
v2.22 · 24.5 MB · code 52
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File information
UpdatedDec 11, 2023
PublishedNov 6, 2020
Packagecom.sfasu.cardboard.calculus
Versionv2.22 (52)
Size24.5 MB
MD565e89c1ce655fd1904096f098e8ef8bd
Min SDK23
ABIsarm64-v8a
Malware scanTRUSTED
Signature SHA171:EC:37:8F:50:BC:21:BB:98:92:2B:BA:D6:82:69:BD:E7:1F:97:B4
SignerCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Total downloads1,000
This version1,000
DeveloperCalcVR Project
Age ratingEveryone
What's new in v2.22
Target Android SDK is now version 33
Security scan
TRUSTED
- Developer signature verified 2023-12-11
- Signature SHA1 71:EC:37:8F:50:BC:21:BB:98:92:2B:BA:D6:82:69:BD:E7:1F:97:B4
- File MD5 65e89c1ce655fd1904096f098e8ef8bd
How to install Calculus in Virtual Reality v2.22 on Android 6.0 Marshmallow+
Takes about 2 minutes. You'll need roughly 24.5 MB of free storage.
- Grab com.sfasu.cardboard.calculus_52.apk — hit the Download button above (24.5 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 65e89c1ce655fd19…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.sfasu.cardboard.calculus_52.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=Android, 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 Calculus in Virtual Reality — tap Open on the install screen, or find the Calculus in Virtual Reality icon in your app drawer (this build targets arm64-v8a devices).
Common install errors for Calculus in Virtual Reality
- "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 6.0 Marshmallow 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 arm64-v8a native code. Devices with a different CPU will reject it.