Substack — Old versions
Substack Inc.No older versions available yet. Current release.
What's new in 2.108.0
- Various fixes and improvements
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 Substack. One known signing key across every release we hold.
2.108.0
Current key1 release · Jul 28, 20269f6f 3f65 080d e1ec…
Certificates on record (1)
Every key we have ever recorded for Substack. New builds are compared against this set; a build signed by none of them is what our badge calls a mismatch.
- 9f6f 3f65 080d e1ec…Recorded the first time we scanned this package · Jul 28, 2026CN=Android, O=Google Inc.