Launching today

Your charger is real wattage, iOS App

Launching today

See your real charging wattage — no dongle

4 followers

See your real charging wattage — no dongle

4 followers

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iOS has never shown charging wattage. You plug in a cable and get a lightning bolt — no idea if it's 5W or 20W. WattCheck estimates real-time wattage by tracking battery % rise against your iPhone's known capacity. No dongle, no extra hardware. Plug in → watch the speedometer go from Bicycle to Jet. ⚡ Compare cables side by side 📊 Session history 🎯 Fully native SwiftUI 🆓 Free with ads · $1.99 one-time, no subscription ever

Your charger is real wattage, iOS App gallery image

Free

Launch tags:iOS•Accessories•Batteries

Launch Team / Built With

FramerLaunch websites with enterprise needs at startup speeds.

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Maker

📌

Hey Product Hunt! 👋 I built WattCheck because one thing always bugged me — iOS gives you zero visibility into actual charging speed. Just a lightning bolt icon, whether you're getting 5W or 20W. The trickiest part was accuracy — battery % changes are noisy, so I spent a lot of time on the stabilization algorithm and session averaging. It's not a hardware meter, but for comparing cables side by side it's been really reliable. Would love to hear what wattage your charger actually pulls — and if anyone has a USB PD meter to compare against, I'm genuinely curious how close it gets! ⚡

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2d ago