Expensive, need notes versioning

I just migrated my notes from Codebook 2 to Codebook 3. I really dont care about the password management feature, only the Notes feature. We should have been allowed to download Codebook 3 for FREE so that we can migrate our notes over, and require us to pay $9.99 only if we wish to enable the password management feature. Also, for $9.99 the app should also provide versioning of the notes each time we perform a Sync. A versioned notes file should be read-only and can be selected to be the "current" active notes. Subsequent Sync operations should create a brand new, read-only notes version. Please provide this much needed feature!

timzter about Codebook Password Manager, v3.1.2