Cell: Battery Assistant
Learn. Predict. Charge.
$1.99
Your devices have battery habits. Cell learns from your readings, improves its estimates and helps you choose when to charge.
Your battery. Actually understood.
Cell is a personal battery assistant for your rechargeable devices. Track earbuds, a watch, phone, tablet, laptop, power bank or stylus in one colorful home. Start with a first estimate; useful measurements gradually refine your own device's consumption rate and remaining-use forecast.
MAKE EVERY READING COUNT
Add a device, record its percentage and enter how long you actually used it. Compare recorded levels with the forecast, see the confidence level and explore 7-day, 30-day or all-time history. Active-use estimates and elapsed-time estimates are clearly distinguished.
READ AUTOMATICALLY WHERE SUPPORTED
Track this iPhone or iPad automatically. The Apple Watch companion reads its own battery and shares it with the paired iPhone. Supported Bluetooth accessories can send real readings. The optional Cell Mac helper shares your Mac's battery over Bluetooth. Other devices, including AirPods whose battery isn't exposed through public APIs, use quick manual check-ins.
YOUR ALERTS. YOUR RULES.
Choose up to three battery thresholds for each device. Optional local check-in, charge and learning notifications respect quiet hours and limit repeated alerts. Home Screen and Lock Screen widgets show your latest recorded readings.
APPLE PENCIL, ACROSS YOUR DEVICES
Read on the paired iPad, then optionally share the latest measurement to your iPhone through the same Apple Account's iCloud. Automatic reading depends on Pencil and iPadOS support; if unavailable, manually enter the percentage from Apple's Batteries widget on the iPad.
MADE PERSONAL
A short tour and step-by-step guide help you get started. Follow your system language or choose from 10 languages in Settings. Export or delete your data whenever you like. No Cell account, ads, tracking or analytics. The developer cannot access your measurements.
Battery predictions are approximate. Automatic readings, iCloud delivery and widget refresh depend on hardware support and Apple's execution rules. Battery health appears only when valid data is available, with its source identified.
Your devices, together
Choose iCloud sync during setup or in Settings to share all your tracked devices, battery history and per-device alerts between iPhone and iPad using the same Apple Account. Enable iCloud Drive on both. Connections and app preferences stay local; delivery is managed by Apple.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Mehmet Efe Aytas, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Mehmet Efe Aytas
- Size
- 6.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Apple Watch
Requires watchOS 11.0 or later.
- iPhone
- Languages
English and 9 more
- English, French, German, Japanese, Korean, Portuguese, Simplified Chinese, Spanish, Traditional Chinese, Turkish
- Age Rating
4+
- 4+
- Copyright
- © 2026 Mehmet Efe Aytaş
