WattCheck: Charger Power Meter
USB-C & Lightning Watt Monitor
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Is your charger actually fast charging your iPhone?
WattCheck: Charger Power Meter estimates real-time wattage delivered to your device by analyzing how quickly your battery percentage rises — no extra dongle, no hardware tester required.
HOW IT WORKS
Since iOS doesn't expose raw watt readings, WattCheck uses your device model's battery capacity and typical voltage to calculate estimated power output. The more stable your environment, the more accurate the reading.
LIVE CHARGING SCREEN
• Speedometer gauge showing estimated watts in real time
• Fun performance tiers: Bicycle → Sedan → Sports Car → Jet
• Live battery %, charging status, and elapsed time
• Measurement guide: best results at 20–60% battery
CHARGE HISTORY
Every +1% battery increment is logged during a session. Review average watts per session, compare cables and adapters, and spot patterns over time with easy-to-read charts.
MULTI-LANGUAGE SUPPORT
Full localization in English, Turkish, German, Japanese, Spanish, French, Korean, and Portuguese — so you can charge smarter in your language.
PRIVACY FIRST
All battery data stays on your device. Nothing is sent to external servers. No account needed.
TIPS & FAQ
Learn why the app needs to stay in the foreground, how to get the most accurate readings, and what affects watt fluctuations (cable quality, temperature, iOS charging management).
FREE & PREMIUM
Use WattCheck free with standard features. Remove ads with a one-time No Ads purchase — no subscription required.
IMPORTANT: WattCheck provides estimated wattage based on battery percentage change over time. It is not a hardware wattmeter. Readings may vary due to charger quality, cable resistance, ambient temperature, and iOS power management. For best accuracy, keep the app in the foreground and wait for at least +1% battery increase.
Download WattCheck and finally know if your charger is pulling its weight.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The latest version offers bug fixes and performance improvements.
The developer, Ibrahim Tosun, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Purchases
- Identifiers
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ibrahim Tosun
- Size
- 5.6 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - Mac
Requires macOS 14.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.3 or later.
- iPhone
- Languages
English and 7 more
- English, French, German, Japanese, Korean, Portuguese, Spanish, Turkish
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- No Ads - Lifetime $1.99
- Copyright
- © 2026 İvatek Studio - İbrahim Tosun