ChargeWatt: Charging Speed
Watt Meter & Charger Test
About
Monitor your iPhone's charging speed in watts and track your charging history. Compare chargers, analyze battery health, and receive notifications when your desired charge level is reached. Features include Live Activity, widgets, and Siri integration.
What's New in ChargeWatt
1.2.1
November 6, 2026
• Settings → Rate ChargeWatt now opens the App Store review page directly. • Small fixes and improvements. Enjoying ChargeWatt? A rating or a short review helps a small independent app a lot.
MoreSubscriptions & In-App Purchases
$4.99
ChargeWatt Pro
One-time purchase. Unlocks every Pro feature.
Developer apps
FAQ
What is ChargeWatt's main function?
ChargeWatt displays your iPhone's charging speed in watts and records each charging session. It helps you identify the fastest chargers and cables, and monitor your battery's health over time.
How does ChargeWatt estimate charging watts?
Since iOS does not share charging current directly with apps, ChargeWatt estimates watts by timing the battery level increase and multiplying it by your iPhone model's battery capacity. Values are clearly labeled as 'Estimated'.
What features are included in ChargeWatt Pro?
ChargeWatt Pro, a one-time in-app purchase, unlocks widgets, Live Activity, Dynamic Island, charger comparison, charging habits, tips, charge alarms, and car charge detection. Core features like watts, charge records, and battery health log remain free.
Does ChargeWatt have ads?
No, ChargeWatt is designed with privacy in mind and does not contain any advertisements. Your charging data stays on your iPhone.
How often is ChargeWatt updated?
The latest version, 1.2.0, was released on November 4, 2026. Updates typically address performance improvements and new features, ensuring the app remains reliable and up-to-date with iOS changes.
What devices is ChargeWatt compatible with?
ChargeWatt is available for Apple Watch, iPhone, and iPad, offering a comprehensive charging monitoring experience across your Apple ecosystem.
Can I export my charging data?
Yes, ChargeWatt allows you to export your raw charging data as a CSV file, enabling further analysis or backup of your charging history.
What is the user sentiment for ChargeWatt?
Based on the available data, ChargeWatt has a perfect 5.0-star rating from one review, indicating a highly positive initial user reception.