Make money decisions you’ll actually feel good about.

Miles, cashback, CPF — run the math on your own numbers, not generic averages.
Free, ad-free, stays on your device.

Always free

No paywalls, no signup walls.

Stays on your device

Your numbers never leave your browser.

Up to date

Refreshed when the rules change.

Pick the moment that’s on your mind. We’ll do the maths in the background while you stay focused on the decision.

For Business

Beyond the free calculators, SGfi builds tools for businesses and partners. The first is a monitoring service, running in production today.

SGfi Monitor

Automated change monitoring for documents and web pages. It watches your sources, then alerts you with a diff when they change, typically within 1 hour.

  • Diffs and alerts typically within 1 hour
  • PDFs, terms and conditions, policy, product, and web pages
  • Telegram, email, or custom integrations
  • Coverage configured per client
Live

Fetched from source

bank · terms.pdf

Change detected

2 lines differ from last version

Alert sent

Telegram · email · 6 min

Diff

− Notice period: 30 days

+ Notice period: 14 days