ROI Calculator
Sliders in, a payback chart out, for proposals and sales pages.
Log project sessions and calculate a manual hourly estimate locally.
/embed and press Enter.https://notionarena.vercel.app/embed/billable-time-tracker/embed → paste this URL → Embed link
https://notionarena.vercel.app/embed/billable-time-trackerWorks on every Notion plan. No integration, no OAuth, no server. The trade-off: the widget lives on our host, so it needs network access to render, and a workspace serving thousands of page views a day could hit fair-use limits. For offline-safe delivery, use the HTML block tab.
A small browser-local timer for project or task sessions. Start, pause, resume, and save a session with an optional hourly rate estimate. Entries stay in this browser and are not an audited timesheet, invoice, client report, or team-shared source of truth.
Sliders in, a payback chart out, for proposals and sales pages.
Compare monthly income against four editable expense buckets.
Adjust a small item list with plus and minus stock controls.