FreshBooks is an accounting software with strong time tracking capabilities tailored for service-based businesses. It enables users to track billable hours, manage expenses, and seamlessly generate invoices, making it ideal for freelancers and small teams.

TEMS (Time and Expanse Management System) is a time and expense management system that enables users to track time and expenses across multiple projects and users. It also assists administrators with billing and invoicing, making it useful for organizations needing integrated time and expense tracking.

Freelancy is a straightforward and affordable time tracking app designed for freelancers. It generates invoices based on hourly rates, simplifying the billing process for independent workers.

Paydirt is a time tracking application for freelancers, offering a complete invoicing suite. It facilitates accurate tracking of work hours and integrates invoicing, though it lacks extensive integrations and offline support.

ZipBooks is a web-based and iOS-compatible time tracking and accounting solution, featuring flexible time and billing tracking, invoicing, expense management, and financial reporting. It offers integration with popular tools and supports staff and client management.

Xero is an online accounting platform that includes Xero Projects, a module for time tracking and project cost management, allowing businesses to track billable hours, monitor project profitability, and invoice based on logged time.