Local data · Technology in use
SQLite / SQLCipher
An embedded database; SQLCipher adds transparent encryption.
The problem it solves
An embedded database; SQLCipher adds transparent encryption.
Technical rationale
SQLite reduces local persistence to a transactional file; SQLCipher adds encryption without changing the query model. That combination lets 2 Free run without a server while keeping a protected local source of truth.
How I have used it
It is the encrypted local source of truth for 2 Free on Linux and Android.