Out of 239+ battery level apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
Monitor your device's battery level with a Portal-themed interface. Receive audio announcements as your device charges, and access settings through a cake icon. Offers customization options like changing the app icon and switching between dark/light modes.
This app provides a detailed battery monitoring experience for your phone or tablet. It offers calibration features for increased accuracy and displays estimated usage times for various activities, from listening to music to GPS navigation. It also includes charge alerts and a widget for quick access to information.
Monitor your iPhone and Apple Watch battery levels and runtimes with detailed insights. Receive customized notifications for charging and low battery alerts. View battery data at a glance on your watch or via widgets.
Battery Level - Portal tops our battery level apps ranking as of September 2026, with a 4.3-star average from 21 App Store ratings, and it's free to download.
Are there free battery level apps for iPhone?
Yes — 19 of the top battery level apps we rank are free to download, including Battery Level - Portal and Battery HD+.
Does Battery Level - Portal have ads or in-app purchases?
Battery Level - Portal has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
How many battery level apps are on the App Store?
We track 239+ battery level apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
What does this app do?
This app allows you to monitor your device's current battery level with a theme inspired by the Portal game. It provides audio announcements of your battery percentage as it charges, so you can keep track without constantly checking your screen.
What are the key features of this app?
Key features include a Portal-themed battery level monitor, battery level announcements in any language your device is set to, a Portal soundboard, a Siri shortcut for battery level, the ability to change the app icon, and switching between dark and light modes.