I agree with the previous answers. I have clients using Xero, Freshbooks and QuickBooks desktop and online versions. As an accountant, I definitely advise my clients to use QuickBooks. For most QB online is more than enough. It's a great fit for the solopreneur. Chat with a local accountant to get advice on the right level for your business. You might even be able to get discounted pricing for the software from an accountant.