Cloud Battery vs PowerGlass
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cloud Battery
This app centralizes battery levels from all your Apple devices into one view. Monitor battery status across iPhones, iPads, Macs, and Apple Watches, with notifications and widgets for easy access. Seamlessly integrates with iCloud for a hassle-free experience.
- Centralized battery monitoring
- Real-time battery tracking
- Today, Home Screen, and Lock Screen Widgets
- Watch Complications
- Low battery and unplug notifications
- Siri Shortcuts integration
Read full descriptionHide full description
Cloud Battery keeps your device, accessory, and shared device battery levels in one place. Use Cloud Battery on supported devices: iPhone, iPad, Mac, Apple Watch, Apple Vision Pro, Apple TV. Cloud Battery is available on supported Apple platforms. Use iCloud to sync supported battery levels across your devices, view synced batteries on Apple TV, and share individual battery status for devices you own with people you choose. Cloud Battery includes: - At-a-glance battery levels - iCloud battery sync - iCloud sharing for battery status from devices you own - Synced battery viewing on Apple TV and Apple Vision Pro - Battery levels for Mac AirPods and compatible Bluetooth accessories - Home Screen, Lock Screen, Mac, and Apple Vision Pro widgets - Apple Watch battery rings - Low-battery and ready-to-unplug alerts for devices you own on supported platforms - App Shortcuts and Siri actions for battery level lookup and sync Cloud Battery works best with iCloud enabled on each device.
PowerGlass
This app provides intelligent battery analytics for your Apple Watch, offering live time-remaining predictions based on your actual usage patterns. It continuously adapts to your changing habits to ensure accurate forecasts, giving you confidence in your device's power. Explore detailed usage graphs and power-user tools for deeper insights.
- Live time-remaining predictions
- Personalized hourly usage learning
- Dual-mode learning (Standard/Low Power)
- Multiple complication options
- Depletion time estimate
- 24-hour usage graph
- Power-user tools
Read full descriptionHide full description
Have you ever wondered how long your battery will really last? PowerGlass turns your battery percentage into a live time-remaining prediction, based on how you actually use your devices. By learning your real-world usage patterns — on Apple Watch, iPhone and iPad — it shows you exactly how many hours you have left. Your battery drain isn't constant, and neither is your lifestyle. PowerGlass continuously adapts as your habits change, keeping its predictions accurate as your routine evolves. On your Apple Watch • A live countdown in hours, learned from your own usage • An energy bar showing the hours left against what a full charge is worth • The day and time you'll need to charge, and your average drain • Your day hour by hour, so you can see which hours cost you the most • Battery history, and a forecast of where it's heading • A five-week trend of your daily average • See exactly how it learned: the calculation behind every learning event • Keeps learning while you're not looking — you don't need to open it • Complications for any face: gauge, simple gauge, corner, inline, and two rectangular styles • Customisable data fields for the rectangular complications • Build your own main page — pick the layout, then choose the metric in every slot • Five colour palettes for the graphs • Low Power Mode is learned separately, so the estimate stays right when you switch • 23 awards for steady habits and learning milestones • Choose how fast it adapts to changes in your routine On your iPhone and iPad • A live countdown in hours, learned from your own usage • An energy bar showing the hours left against what a full charge is worth • The day and time you'll need to charge, and your average drain • Your day hour by hour, so you can see which hours cost you the most • Battery history, and a forecast of where it's heading • A record of every charge and how much it added • See exactly how it learned: the calculation behind every learning event • Keeps learning while you're not looking — you don't need to open it • Widgets for the Home Screen and the Lock Screen • Built for the iPad's screen, in any orientation • Choose how fast it adapts to changes in your routine The more you use it, the sharper it gets. Note: In Low Power Mode, Apple Watch restricts background app refresh. To keep learning accuracy, open the app occasionally while you're in that mode.
Screenshots
Verdict
The clearest difference is price: Cloud Battery at Free against PowerGlass's $2.99. Cloud Battery also leads on ratings volume (1.5K vs 5). PowerGlass's advantage is rating (5.0 vs 4.0) and in-app purchases (none vs 1). On device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Cloud Battery is free to download; PowerGlass costs $2.99 up front. Cloud Battery sells 1 one-off in-app purchase. PowerGlass asks for nothing beyond the download.
PowerGlass holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Cloud Battery has 1.5K ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 40% of Cloud Battery's written reviews are positive against 50% of PowerGlass's.
Cloud Battery ships an update every 2 months, PowerGlass every 3 weeks. The most recent releases landed on October 16, 2026 and October 12, 2026 respectively.
| Parameter | Cloud Battery | PowerGlass |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 4.0 (1.5K ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 39.8% of reviews | 50.0% of reviews — better |
| Number of ratings | 1.5K — better | 5 |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, Apple Watch |
| Requires iOS | 18.0 | 18.0 |
| Further details — not scored | ||
| Size | 49 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Alan Yan | Jaisah Webb |
Customer experience
Cloud Battery
PowerGlass
Bugs and requests
Cloud Battery
Reported bugs
5 issues- Devices disappearing from the app
- Widget not updating correctly
- Crashes when trying to share device status
- Incorrect battery percentages displayed
- Inability to add certain devices like older MacBooks
Requested features
5 requests- Add support for AirPods and other Bluetooth devices
- Improve Apple Watch integration and complication options
- Allow customization of device order in the app and widget
- Provide more detailed battery health information
- Implement a background refresh mode to keep data up-to-date
PowerGlass
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Cloud Battery
- Remove Ads & Customization$4.99
PowerGlass
No in-app purchases








