Best for growing teams that need unlimited users in the books
Xero matches QuickBooks feature-for-feature in most areas and beats it on one structural point: unlimited users on every plan. Strongest outside the US, where accountant familiarity is at least equal and often better.
Best for freelancers and service businesses that bill for time
FreshBooks is invoicing-first accounting for freelancers and service businesses. Time tracking and project profitability are built in rather than bolted on, at the cost of inventory support and per-client billing limits.
Best for businesses already running the Zoho suite, and for value hunters
Zoho Books is the value option with the widest feature list per dollar, including inventory and a client portal at low tiers. Its strongest argument is suite integration; its weakness is US accountant familiarity and a free tier limited by revenue.