Open Formula use FreeAgent for all our accounting software requirements. It is simple to use, great value for money and extremely flexible.
We use it for managing our work from generating quotes, converting quotes to projects, tracking time & expenses during the project through to final invoicing and invoice tracking.
It also links up with the GoCardless direct debit system to really take the hassle out of regular billing!
If you follow this link http://fre.ag/44bfo1tj then you will enjoy 10% discount and so will we. We both win whilst using a brilliant system!