ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
ServiceM8 - ServiceM8 (Service Mate) is cloud software that allows you to manage any service business. Manage jobs, produce mobile quotes and invoices on the go. Get Control.
Zapier - Connect the apps you use everyday to automate your work and be more productive. 1000+ apps and easy integrations - get started in minutes.
Fergus - Job management software for plumbers & electricians
n8n.io - Free and open fair-code licensed node based Workflow Automation Tool. Easily automate tasks across different services.
Clik - Clik Service helps field service industries organise every aspect of their business. The most important features include scheduling engineers, creating bespoke reports, invoicing, managing customers, raising job sheets and tracking stock.