Harvest is strong when
You mainly want established time tracking and invoicing with a familiar billing workflow.
Harvest is well known for time tracking and invoicing. ABH is a better fit when you want the billed work to carry more client-facing context and stay tied to a broader small-agency workflow.
Harvest is a strong product for time tracking and billing. This page is meant to show where ABH fits differently, not to dismiss what Harvest does well.
If the main billing pain is not time tracking itself but explaining invoices to clients afterward, ABH is designed around that narrower problem.
The product emphasizes public invoice links, line-item context, retainer visibility, and a billing record that starts before the invoice screen.
You mainly want established time tracking and invoicing with a familiar billing workflow.
You want invoices built around logged work context, public invoice links, retainers, and connected small-agency operations.
Both products help teams track time and bill for it. The difference is how much context follows that work into the invoice.
Start with one client, one project, and one clearer invoice.