Watt Charging Speed

See exactly how fast your charger really is — in real-time watts.
Watt Charging Speed measures your charger's actual output so you can tell the difference between a fast charger and a slow one. Simply plug in your iPhone or iPad and watch the live wattage appear.
REAL-TIME CHARGING SPEED
• Live wattage display while charging
• Color-coded speed indicator: Fast, Normal, Slow, or Trickle
• Animated charging ring and live graph
• Estimated time to full charge
BENCHMARK YOUR CHARGERS
• Create custom battery range tests (e.g. 30% → 80%)
• Compare different chargers and cables side by side
• Track which charger performs best
CHARGING HISTORY
• Automatic session tracking
• View past sessions with average watts, duration, and battery range
• Identify charging patterns over time
PRIVATE BY DESIGN
• No ads, no tracking, no accounts
• All data stays on your device
• No internet connection required
• Works completely offline
Perfect for testing new chargers, diagnosing slow charging, or verifying that your cable actually supports fast charging.