Our story

It started with a simpler way to estimate in Google Docs.

SubAddons began as Estimator for Google Docs: a focused tool to help people prepare estimates in the document they already use. As people used it, we kept listening, improving, and building around the work that comes next.

Explore the updated product
How it grew

A product shaped by the work people actually do.

Each step came from the same question: what would make this task easier for the person doing it?

01
The beginning

Estimator for Google Docs™

It began with a practical need: create clear estimates without jumping between documents and spreadsheets. The first version brought proposal setup and formatted output into the Google Docs workflow.

02
The feedback

Less busywork around every quote

We kept developing the product to address the friction around estimates: reusing line items, managing clients, calculating totals, and turning approved work into invoices.

03
The next chapter

SubAddons Estimate, Quote & Invoice Builder

The product has grown, so its name has too. SubAddons reflects a broader set of useful tools, while the updated product keeps its original focus: helping people handle everyday document work with less friction.

What it does today

The same workflow, with more of the job covered.

SubAddons Estimate, Quote & Invoice Builder

Live

Create estimates and quotes, reuse line items, manage clients, calculate totals, and insert polished documents into Google Docs. Keep invoice details and payment balances organized as the work moves forward.

Explore SubAddons Estimate, Quote & Invoice Builder

Symbol Tools

Free

A small set of free copy-and-paste symbol tools - stars, crosses, circles, degree signs, and superscript characters - for anyone who just needs the right character, fast.

Browse Symbol Tools

The product keeps moving forward.

We’ll keep improving SubAddons by listening to the people who use it and focusing on the details that make everyday work smoother.

Contact Subaddons