Built for Reliability

Our calculators are tested and optimized for performance, accuracy, and stability.

Browser & Device Support

All modern browsers (Chrome, Firefox, Safari, Edge)
Mobile: iOS 12+, Android 8+
Tested on slow networks (3G/4G, <1 Mbps)
Works on low-end devices and older phones

Performance

⏱️Page load time: < 2 seconds on 4G
Calculator response: < 500 ms
📱Mobile Lighthouse score: 85+
🔧Uptime: 99.9% (SLA)

Why We Don't Hang

  • No heavy third-party scripts
  • Minimal JavaScript (pure vanilla JS for calculations)
  • Progressive enhancement (works even if JS fails partially)
  • Graceful error handling (friendly messages, not silent failures)

If You Experience an Issue

  • Clear browser cache and try again
  • Try a different browser
  • Contact support with screenshot

Comparison

MetricEasyProCompetitor ACompetitor B
Avg. page load1.8s3.2s4.1s
Mobile score887265
Uptime99.9%98.5%97.2%