Battery Monitor Sync

Stop guessing which device needs charging. Live battery levels for iPhone, iPad, Mac & Apple Watch — now with alerts, 7-day history and time-remaining estimates.

Do you know how much battery your iPhone has right now — without picking it up?

Battery Monitor Sync gives you a live view of every device's battery level across your iPhone, iPad, Mac, and Apple Watch. All in one place, all in real time.

Apple's own battery widgets show accessories like mice, keyboards, and AirPods — but not your iPhone, iPad, or Apple Watch. Battery Monitor Sync fills exactly that gap.

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FEATURES

• Live battery levels for iPhone, iPad, Mac, and Apple Watch • Menu-bar icon on Mac — see every device's battery at a glance, always • Home Screen widgets in small, medium, and large sizes • Battery alerts — low, critical, charging-complete, and offline notifications with adjustable thresholds • Battery history & trends — 24-hour and 7-day charts for every device • Estimated time remaining — "≈3h left" or "≈45m to full" once enough data exists • Live Activity & Dynamic Island on iPhone while charging or running low • Configurable Apple Watch complications — pin a specific device or track the least-charged one • Works automatically for devices sharing the same Apple ID • Personal iPhone + work Mac? Pair in seconds via QR code — no account needed

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PRIVATE & SECURE BY DESIGN

Every Bluetooth packet is signed with HMAC-SHA256 using a key that is either synced silently through iCloud Keychain (same Apple ID) or set via a one-time QR scan (different Apple IDs). No data ever leaves your local network.

• No account or sign-in required • No analytics, no ads, no tracking — ever • No data sent to any server or third party

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PERFECT FOR

• Mac users who want instant battery info without touching their phone • Anyone juggling multiple Apple devices throughout the day • People who hate surprises — like an iPhone that dies mid-call

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Download free and keep all your devices in the green.