GRAX Audit Trail allows you to track unlimited fields per object, store data for ANY length, choose your archiving strategy, and own the data storage (external to Salesforce). Simple to install, free to try, GRAX team will deploy for free (or show you how) with no commitment.
Choose storage of your choice Postgres (default), DynamoDB, and/or BigObjects. HIPAA compliant and data never leaves a property you own.
GRAX Time Machine allows you to track the before and after for any update on a full object. Time Machine allows you to view full record details at a point in time.
"Show me the full Case record from June 11, 2018"
This allows regulated industries, compliance, and at risk management to back track as needed.