Battery Testing vs Battery Watcher
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Battery Testing
This app helps you understand your iOS device's battery performance. It identifies battery runtimes and provides data to help you determine if your battery needs replacement. Monitor your device's battery health and runtime with detailed insights.
- Monitor device runtimes
- Estimated and raw battery data
- Check battery health
- Identify battery issues
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BatteryTesting is a well-designed battery benchmarking app for iOS devices. It's also the perfect test for your iOS battery, no matter if it’s brand new or gently used. Did you ever wonder why your device's battery is always running low? With BatteryTesting and its technique to identify battery runtimes, you will always know what's wrong with your battery. ►WHAT IT DOES The application will display your device's runtimes adjusted accordingly or even show you further data on your battery (depending on the iOS version). ►KEY FEATURES • Monitor your device's runtimes • Estimated, and calculated raw data • Easily to check your battery's health ►SUPPORT The main objective of BatteryTesting is to give users an overview of their device's runtimes. If you are unsure about a battery replacement, feel free to send us an e-mail or tweet us (@BatteryTesting).
Battery Watcher
Monitor your iPhone's battery status directly from your Apple Watch. View current levels, historical data, and receive alerts for a full charge. Perfect for quick checks without needing your phone.
- iPhone battery status on Apple Watch
- Watch face complications
- 24-hour battery history
- Visual charge history graph
- Full charge alerts
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Battery Watcher gives you the status of your iPhone battery right on your Apple Watch! Battery Watcher now supports watchOS 5 and Apple Watch Series 4!! Battery Watcher now leverages the new Apple Watch background processing to keep your Apple Watch up to date with the latest battery level of your iPhone. New Features: - Complications: Check the status of your iPhone battery right from your watch face! - Time Travel: Now you can look back and see what the power level of your iPhone was in the last 24 hours - Battery Level Premium: Upgrade to Battery Level Premium and get the charge history of iPhone battery right on your watch in an easy to use visual graph. Use the Digital Crown to view all the iPhone battery level history for the past 24 and 72 hours! - Full Charge Alert: If you purchase Battery Level Premium, you can receive an alert when your iPhone reaches full charge! For those that want to know how much battery life your iPhone has left without pulling it out of your pocket, this app is for you!
Screenshots
Verdict
Battery Testing and Battery Watcher both sit at 4.5 stars, but that hides the real split: 71% of Battery Watcher's written reviews are positive against 23% of Battery Testing's. Battery Watcher also leads on ads (none vs shown) and iOS requirement (11.0 vs 13.0). Battery Testing's advantage is ratings volume (12K vs 323). On price, rating, update cadence and in-app purchases 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
Both are free to download. Battery Testing sells 1 one-off in-app purchase and Battery Watcher sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.5 for Battery Testing against 4.5 for Battery Watcher. That said, the two scores are not equally well evidenced: Battery Testing has 12K ratings behind it against 323, so its average is the more settled of the two. Written reviews are what separate them: 23% of Battery Testing's written reviews are positive against 71% of Battery Watcher's.
Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 2, 2026 and September 20, 2026 respectively.
| Parameter | Battery Testing | Battery Watcher |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (12K ratings) | 4.5 (323 ratings) |
| Positive reviews | 23.1% of reviews | 70.7% of reviews — better |
| Number of ratings | 12K — better | 323 |
| Update frequency | Fortnightly | Fortnightly |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Requires iOS | 13.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 61 MB | 10 MB |
| Age rating | 9+ | 4+ |
| Developer | Binh Tran | Slackerz Inc |
Customer experience
Battery Testing
Battery Watcher
User reviews
Battery Testing
From 12K App Store ratingsWhat we love
- 👍 Useful for testing battery health
- 🙂 Provides detailed battery information
- 💡 Helpful for refurbished/older devices
Room to improve
- 🔋 Inaccurate battery health readings
- 📺 Excessive ads interrupting testing
- 🐛 Inconsistent and unreliable results
- 🤔 Unclear what the scores represent
Battery Watcher
From 323 App Store ratingsWhat we love
- 👍 Clean and intuitive interface
- 🎯 Accurate battery percentage tracking
- ⌚ Seamless Apple Watch integration
- 🚀 Minimal battery drain on device
- 📊 Battery history and graphing features
Room to improve
- 🐛 Frequent synchronization issues between iPhone and Watch
- 🔄 App requires manual refresh to show current data
- ⏰ Inaccurate time displays
- 🚫 Premium features feel limited or underwhelming
- 📉 Battery percentage discrepancies between app and device
Bugs and requests
Battery Testing
Reported bugs
2 issues- App crashes or stops responding during testing
- Incorrect device information detection
Requested features
3 requests- Provide more detailed battery health metrics
- Improve accuracy of battery testing
- Reduce ad interruptions during testing
Battery Watcher
Reported bugs
9 issues- App fails to communicate with iPhone from Watch
- Battery graphic jumps out of place on iPhone app
- Complication doesn't update without opening app
- Inaccurate battery percentage readings
- App disconnects from Watch frequently
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- Premium full-charge notification doesn't work
- App crashes or becomes unresponsive after updates
- White battery icon stuck in corner with display glitches
- Crown interaction doesn't affect graphing as advertised
Requested features
8 requests- Low battery mode functionality
- Battery percentage viewing on iPhone (currently watch-only)
- Custom notification alerts at user-defined battery percentages
- User-configurable logging intervals for battery tracking
- Settings menu to customize watch display and disable text clutter
Show 3 moreShow fewer
- Complication support for watch face
- Glance feature for quick access
- Better customization options for watch app display
In-app purchases
Battery Testing
- Remove Advertisements$1.99
Battery Watcher
- Battery Watcher Premium$1.99
Questions
Is Battery Testing free?
Is Battery Watcher free?
Which has better reviews, Battery Testing or Battery Watcher?
Do Battery Testing or Battery Watcher have ads?
Which is updated more often, Battery Testing or Battery Watcher?
Other comparisons
