FlowCraft UI: SaaS ROI / Savings Calculator

Zero-dependency SaaS ROI and savings calculator built with Tailwind CSS and Vanilla JS. Includes index.html (UI), app.js (math, currency formatting and quote form), style.css (slider and animations) and .htaccess (hosting settings).

What it does:

- Two-column layout: team-size slider and current monthly cost on the left, results on the right

- Estimated Annual Savings, 3-Year Savings and 3-Year ROI update in real time as visitors drag and type

- Automatic currency formatting in any currency (USD, EUR, GBP, AUD, PHP…)

- "Today vs With us" cost comparison bars

- Set your own base fee, per-seat price and years in the HTML; the math is done for you

- Honest when there are no savings: no negative numbers

- Built-in quote form sends each visitor's email and numbers to your own form service, CRM or webhook

- Heavily commented JavaScript explaining every formula

No npm install or build step. Works from any web host, or opened directly from your computer.

Try the live demo: https://haveinsights.com/flowcraft/roi-calculator/

License: One purchase may be used and modified in unlimited personal and client projects. Standalone resale, sharing, and redistribution are not permitted.

Support: support@haveinsights.com