Smart Protractor — Old versions
Smart Tools co.No older versions available yet. Current release.
What's new in 1.6.4
- v1.6.4 : More models have been calibrated - v1.6.2 : Support for Android 16
Signing history
Android only installs an update signed by the same key as the version already on your device. This timeline shows every signing key we've seen for Smart Protractor. 2 known signing keys across the releases we hold.
1.6.4
Current key1 release · Jul 28, 2026ce5e 1ed4 87a4 5ec7…3c1d 2b0a 8ada 6852…
Certificates on record (2)
Every key we have ever recorded for Smart Protractor. New builds are compared against this set; a build signed by none of them is what our badge calls a mismatch.
- ce5e 1ed4 87a4 5ec7…Recorded the first time we scanned this package · Jul 28, 2026CN=minkyu Ryoo, O=Smart Tools co.
- 3c1d 2b0a 8ada 6852…Recorded the first time we scanned this package · Jul 28, 2026CN=Min-Kyu Ryoo