I am in the process of transitioning all of my work to hourly billing and am looking for an easy way for clients to check in on my hours. I am a happy Harvest user, but it doesn’t offer an easy way for clients to view hours (unless I am missing something).
There are a bunch of add-ons developed using Harvest’s API, and one of them is Harvest4Clients by Jeron Kenters. The application provides a simple, password protected area where clients can see billable and unbillable hours, and a record of past invoices. I recently forked it and slapped on a nice Bootstrap 3 front end. There are a few todos still (mainly getting the jQuery UI datepicker out of there), but it’s totally useable!