Watts vs Speed Test Stealth

Small simple easy to use calculator to determine how much electrical devices cost to run over time.

Speed Test Stealth gives you a precise, no-nonsense measurement of your internet connection — download speed, upload speed, latency, and jitter — all powered by Cloudflare's global network. WHAT IT MEASURES • Download & Upload — tested across 14 progressive stages (100 KB → 250 MB) for accuracy at any connection tier • Ping (latency) — unloaded round-trip time to Cloudflare's edge • Jitter — consistency of your connection over time HOW IT WORKS The app uses the same measurement methodology as the Cloudflare Speed Test web app, running sequential payload stages that adapt to your connection's real capacity. Results are reported as 90th-percentile values, filtering out one-off spikes for a stable, representative number. NETWORK AWARENESS • Detects WiFi, 5G, 4G, 3G, and Ethernet automatically • Identifies your carrier on cellular connections • Shows your local IP address and approximate ISP location using FreeIPAPI HISTORY Every test is saved locally on your device. Review past results by date, compare network types, and track how your connection changes over time. PRIVACY No account required. Speed-test payload traffic is sent to Cloudflare's public endpoints, and your public IP address is sent to FreeIPAPI to estimate ISP and approximate location. All history is stored on-device using Apple's SwiftData framework.