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APK verification

To ensure you’ve downloaded an authentic version of Network Survey, you can verify the APK signing certificate fingerprint before installing.

To check the APK’s signing certificate:

Using apksigner (Android SDK):

Terminal window
apksigner verify --print-certs <apk-file>

Compare the SHA-256 fingerprint shown by your verification tool against the official values below. apksigner prints it in lowercase without colons (Signer #1 certificate SHA-256 digest: abf5ad29...), which is the same value.

PropertyValue
Packagecom.craxiom.networksurvey
SHA-256F5:85:5E:DE:9F:51:DD:EF:D7:2B:1C:D5:A2:29:76:1A:B7:35:2B:30:AD:4F:5F:CE:6D:E2:48:73:9F:4B:4C:79

GitHub releases, IzzyOnDroid, and direct APK downloads

Section titled “GitHub releases, IzzyOnDroid, and direct APK downloads”
PropertyValue
Packagecom.craxiom.networksurvey
SHA-256AB:F5:AD:29:11:FE:31:91:6F:4E:25:5C:17:33:A3:F6:BC:2C:AB:2F:28:16:C9:58:7D:E1:1A:41:58:71:AF:07

Network Survey uses F-Droid’s reproducible builds feature. This means F-Droid verifies that their build from source matches the developer-signed APK, then distributes the original developer-signed version.

The signing certificate fingerprint for F-Droid APKs should match the GitHub Releases fingerprint listed above.