WattCheck: Charger Power Meter

WattCheck: Charger Power Meter

USB-C & Lightning Watt Monitor

8 ratings
4 reviews
Free
In-App PurchasesWith Ads

Details

Released
June 3, 2026
Updated
October 7, 2026

Features

WattCheck: Charger Power Meter video #1 for iPhone
WattCheck: Charger Power Meter screenshot #2 for iPhone
WattCheck: Charger Power Meter screenshot #3 for iPhone
WattCheck: Charger Power Meter screenshot #4 for iPhone
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About

Estimate real-time charging wattage without extra hardware. Analyze battery percentage rise to understand charger performance and track charging history with detailed charts. Supports multiple languages and prioritizes user privacy.

✓Real-time wattage estimation
✓Live charging screen with speedometer
✓Charge history tracking and charts
✓Multi-language support
✓Privacy-focused, no account needed
✓Tips and FAQ for accuracy
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What's New in WattCheck

1.6.1

October 7, 2026

• Improved clarity of the waiting time and stages involved in estimating charging power. • Name your chargers and compare their performance. • Sound and haptic feedback when a measurement is complete. • Charging animation and updated device calibrations. • Added 47 language and region options. • Performance and interface improvements.

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Subscriptions & In-App Purchases

$4.99

No Ads - Lifetime

A one-time purchase permanently removes the ads.

User reviews

Valuable way to check the power coming out of your cube

No wishes with the app, wish there was a way that it could integrate with iOS and show the charging animation on the background when the phone is off

Workng eith the app now... seems to be awesome

i’d give it about eight stars out of 10. It seems to be working fairly well and gives quite of information for a free app so that’s cool.

Response from developer

Thank you so much for your feedback! ⚡ We’re really glad you’re enjoying WattCheck and finding the charging information useful. Your support means a lot to us, and we’ll keep working to make the app even better!

Scam

It doesn’t measure anything!

Response from developer

Thanks for your feedback. WattCheck does measure charging performance, but the result is not instant. Please keep your iPhone connected to the charger and allow the battery level to increase by about 5%. The app uses this charging period to calculate and display a more consistent measurement. We recommend keeping WattCheck open and the charger connected until the measurement is complete.

Best 1.99 app EVER

Best 1.99 app EVER, this is the first app in months that actually does what it says for the right price, plain and perfect!

Response from developer

Thank you so much for the amazing feedback! ⚡ We’re really happy to hear that WattCheck does exactly what you expected. Simple, useful, and reliable is exactly what we aim for. Thanks for your support!

Developer apps

FAQ

Does WattCheck have ads?

Yes, WattCheck contains advertisements. Users can remove these ads with a one-time purchase.

How accurate are WattCheck's readings?

WattCheck provides estimated wattage based on battery percentage change. Accuracy can be affected by charger quality, cable resistance, ambient temperature, and iOS power management. For best results, keep the app in the foreground and wait for at least a 1% battery increase.

What devices does WattCheck support?

WattCheck is currently supported on iPhone devices.

What is the age rating for WattCheck?

WattCheck has an age rating of 4+.

How often is WattCheck updated?

The latest version, 1.5.6, was released on June 5, 2026, indicating recent updates.

Can I use WattCheck offline?

While the app analyzes charging data, it does not explicitly state offline functionality. However, it emphasizes that battery data stays on the device, suggesting it may function without a constant internet connection for core features.

What are the benefits of the premium version of WattCheck?

The premium option for WattCheck is a one-time purchase to remove advertisements. There are no subscription tiers mentioned.

What does the speedometer gauge in WattCheck represent?

The speedometer gauge in WattCheck shows the estimated watts being delivered to your device in real time, with performance tiers ranging from Bicycle to Jet.