Terms of Use

Last updated: October 19, 2026

CellKeeper is an iPhone and iPad app developed by Vadim Katenin. Questions: [email protected].

General guidance and your equipment

CellKeeper helps record charge levels and maintenance history, offers general care suggestions and schedules reminders. It does not measure or control hardware, diagnose battery faults, forecast outages, or guarantee battery health, readiness, runtime or warranty coverage. Follow the exact manufacturer's instructions and the conditions around you before charging, discharging, storing or servicing a station. Do not begin a procedure that would compromise energy you need.

Manual readings and reminders

You are responsible for reading the station's display and confirming physical steps. App estimates depend on the information entered and are not laboratory measurements. Notification delivery depends on system permissions and settings and should not be the only reminder for safety-critical needs.

Local data and iCloud

Data is stored locally and can synchronize through your private iCloud account. Transfers can take time and offline edits may merge later. Deletions propagate to other synchronized devices. Keep records you need independently and review the Privacy Policy.

App Store license and purchases

The app's distribution and license are subject to Apple's applicable App Store terms and Standard Licensed Application End User License Agreement, where applicable. CellKeeper includes one free station and free single-outage calculations. An optional one-time CellKeeper Plus unlock adds more stations, repeating outages with grid recharging, and solar planning. Prices and availability are shown before purchase by the App Store; this website does not sell an unlock. Apple manages payment, purchase restoration and refunds.

Independent app

CellKeeper is not affiliated with or endorsed by power-station manufacturers. Names and brands in station records identify equipment; their owners retain their trademarks.

Your rights

These explanations do not exclude rights that cannot be excluded under applicable consumer law. Contact [email protected] about app problems.