Zoho Invoice is a completely free tool that helps businesses craft and send professional invoices, collect online payments, manage expenses, and generate insightful reports. Businesses can log time and bill clients for the total hours worked on a project. Businesses can also collaborate with customers via a self-service portal where customers can view and approve estimates, make payments for invoices, and download statements.

Since Zoho Invoice is a cloud-based solution, businesses can access their invoicing data where ever they are, with any device—desktops, laptops, tablets, mobile phones, even Apple Watch!

Zoho Invoice is available in 17 languages: Arabic, Bahasa Indonesia, Bulgarian, Croatian, Dutch, English, French, German, Italian, Japanese, Korean, Chinese (Simplified), Portuguese, Spanish, Swedish, Thai, and Vietnamese.

Kamon Telemetry is battle-tested, free and open-source instrumentation library that is very simple to start using, requires almost no coding and can be set-up in a matter of minutes. Developers can send Kamon Telemetry data to the visualization/dashboarding tool of their choice, one of which is compatible Kamon APM. Kamon APM’s major benefit is it comes with a built-in dashboard for the most important metrics to monitor, taking the pain of figuring out what to monitor and building your own dashboards for weeks out of the monitoring.