There is now limitless database size capacity and a limitless number of concurrent users in the database. (leesoftwaresupport.com)
Database sizes range from 400 GB to 10 TB. (jobhero.com)
While the structured detailed approach of JibberJobber works well for those who are very disciplined, an Excel spreadsheet allows you the free form style of doing it yourself, ability to customize and track the statistics that make the most sense to you, and an unlimited database size for free (JibberJobber charges a small monthly fee once you reach a minimum size). (recareered.com)