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 Notepad - Notes、Todo、Memo. One known signing key across every release we hold.
2.6.3.0004
Current key1 release · Jul 29, 2026Every key we have ever recorded for Notepad - Notes、Todo、Memo. New builds are compared against this set; a build signed by none of them is what our badge calls a mismatch.
Writer Journal - Text,Note
Pocket app · Books & Reference