What you can build, and how.
The jobs people come here to do, and what the builder does about each of them.
Lead generation calculators
Give visitors a real answer and ask for their details to send it. Interactive quote and savings calculators that collect qualified leads on your site.
PDF quotes from a form
Send every visitor a personalised PDF of their results, built from your own Google Doc template with your branding. Emailed or downloaded instantly.
Multi-step forms
Split a long form into short steps that work out figures as visitors answer. Conditional logic, progress, and lead capture at the step you choose.
Live data from an API
Pull live prices, rates and stock into a calculator on your website. The call is made server-side, so your API key never reaches the visitor.
Google Sheets calculator
Connect a Google Sheet as your calculation engine. Your existing formulas do the maths and visitors see the results on your own website. No code.
Add it to your platform
WordPress, Shopify, Webflow, Wix and Squarespace — where the snippet goes on each, and the mistake to avoid.
How it compares
Against ConvertCalculator, Calconic, Outgrow and Jotform — real prices, and what each does better.
Two ways to work out a number
Everything on this site comes down to one choice. Either you
write the arithmetic here, in a formula editor that takes
Excel-style syntax and the functions you already know —
PMT, IF, VLOOKUP,
dates, text, the lot — or you connect a Google Sheet and
let the formulas already in it do the work.
The second one is worth understanding even if you do not need it yet. Most businesses already have the logic written down: a pricing sheet, a rate card, a quoting model somebody built years ago and everyone trusts. Rewriting that into a website form is where these projects usually die. Connecting it instead takes about ten minutes, and when the prices change you change them where you always did.
Either way, what you get is a form your visitors fill in and a number they came for — embedded on your own site, or on a page of its own with a link you can send. What you do with the enquiry afterwards is the rest of this list: email it, post it to your CRM, add it to a spreadsheet, or send back a PDF quote on your own letterhead.
Not sure which you need? Start from a template and change it, or read the documentation.