Small business owner in the skilled trades sector is looking for trades software

For my side business as an electrician, I am looking for simple software designed for tradespeople that helps me create quotes and invoices.

The software should offer the following features:

• Quote calculation
• Invoice processing
• Features tailored to the needs of a small business owner
• Product database
• Measurement calculation
• Windows-compatible
• Data access via an app (Android) would be a plus

I plan to use one single software workstation.