What does paying annually save me?

Annual billing gives you two months free. That's why each plan's yearly price is ten months, not twelve: Starter is $120/yr instead of $144, Pro is $290/yr instead of $348, and Agency is $790/yr instead of $948.

If you already know Kliently is part of your workflow, annual is the better deal. And annual plans come with a 14-day money-back guarantee, so committing for the year carries little risk.