Both SQLite and ZIP will store files and both are well-established open formats with a trillion instances in the wild.
SQLite does everything ZIP does but also gives you transaction, a rich query language, a schema, and the ability to store small (1-8 byte) objects and to translate objects into the appropriate byte-order for the reader.
Because ZIP is a key/value store and SQLite is relational.
(Later:) Here is a slide comparing SQLite to ZIP from a talk I'm scheduled to give on Monday: https://sqlite.org/tmp/sqlite-v-zip.jpg
Both SQLite and ZIP will store files and both are well-established open formats with a trillion instances in the wild.
SQLite does everything ZIP does but also gives you transaction, a rich query language, a schema, and the ability to store small (1-8 byte) objects and to translate objects into the appropriate byte-order for the reader.