Quotes, for people who write them in a van.

Before you build it, four documents about it: who else is already selling to the sole-trader electrician or plumber with no office, one price you can defend, a money model with every guess labelled, and where the first customers are.

What it checks first, for this one.

1. What the established job-management suites charge, and how much of that is for the accounting half nobody asked for
2. Whether the merchants they buy from publish prices a quote could be built against
3. What proportion of jobs come through a directory that already sends a quote form

Does winning one extra job a month cover a year of the subscription? For most trades that is the whole sale.