JIRA, Trello, Redmine, Todoist, Toggl Track, ClickUp, Focalboard, Taiga.io, Wekan, Zenkit, Remember The Milk, Kanbana, Express Invoice, sevDesk, Invoice2go, Patriot Software, Webilly, Metatask, Freeagent, Invoice At Once, Qvalia Invoicing, e-Procure, Inveezy.com, Harpoon, Invoice Studio, Tradeshift, Billbooks, INV24, Simplybill, Beejak.com, Invoice Dude, Trippeo, InvoiceBerry, Resibo are some alternatives to Avaza.