We’ve just posted some information on our discussion forum about Codebook 2 no longer running on iOS 14.5. If you’re unable to access your data we’ve got migration steps available.
About Zetetic
Zetetic LLC is a small company specializing in applied data security. As the developers behind the SQLCipher encrypted database library and Codebook Password Manager, hundreds of organizations and millions of users trust Zetetic’s software and frameworks.