NanoBattery vs Charge Glance
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NanoBattery
This utility app provides real-time monitoring of your Apple Watch's battery level directly on your iPhone. It offers convenient widgets, custom alerts, and support for Dynamic Island and Live Activities to keep you informed without needing to check your watch.
- Instant Watch battery monitoring
- Home and Lock Screen widgets
- Dynamic Island and Live Activities support
- Custom low battery alerts
- Battery-efficient background sync
- Privacy-focused, no data collection
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NanoBattery is the essential utility for your Apple Watch. Stop guessing how much power is left on your wrist. NanoBattery seamlessly syncs your Apple Watch battery level to your iPhone, keeping you informed at a glance. Designed with a sleek "Black & Yellow" aesthetic perfect for OLED screens, NanoBattery feels right at home on your modern iOS device. KEY FEATURES: • Instant Monitoring: Check your Watch battery level directly from the app dashboard. • Smart Widgets: Add beautiful widgets to your Home Screen and Lock Screen to track power levels without unlocking your phone. • Dynamic Island & Live Activities: Keep an eye on your battery in real-time with support for the latest iOS features. • Custom Alerts: Receive a notification on your iPhone when your Watch battery drops below a specific threshold (e.g., 20%). • Battery-Friendly: Uses efficient background refresh technology to sync data without draining your device. HOW IT WORKS: NanoBattery uses background app refresh to periodically fetch data from your Watch (typically every 15-20 minutes) or instantly when you open the app or tap the widget. PRIVACY FIRST: No data collection, no tracking. Your battery data stays between your devices. Download NanoBattery today and never let your Watch run out of power unexpectedly!
Charge Glance
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See your iPhone and Apple Watch battery levels directly from your Mac. Charge Glance brings your devices together in a simple dashboard and a convenient menu bar view. Check their battery percentage, charging status and latest update without reaching for your phone. Features: • iPhone and Apple Watch battery status on Mac • Compact menu bar view • Clear charging and battery indicators • Manual refresh for the latest available measurements • Private synchronization through your personal iCloud account • English and French interface based on system language • No ads, analytics or tracking Battery information is stored in your private iCloud database and synchronized between your devices. Opening the companion app on iPhone or Apple Watch requests a fresh measurement. Because iOS and watchOS may suspend apps in the background, Charge Glance always displays the time of the latest available update.
Screenshots
Verdict
NanoBattery and Charge Glance are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | NanoBattery | Charge Glance |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | — | Daily |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, Mac, Apple Watch |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 16 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Giovanni Outerleys | Renaud Baivier |
In-app purchases
NanoBattery
No in-app purchases
Charge Glance
No in-app purchases
