# Battery Watcher vs Battery Saver

The clearest difference is rating: Battery Watcher at 4.5 against Battery Saver's 4.1. Battery Watcher also leads on update cadence (fortnightly vs every 2 months). Battery Saver's advantage is review sentiment (87% vs 71%) and iOS requirement (11.0 vs 18.6). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Battery Watcher sells 1 one-off in-app purchase and Battery Saver sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Battery Watcher holds the better App Store score, 4.5 against 4.1. Both are backed by a comparable volume of ratings — 340 and 228 respectively. Written reviews complicate that: 71% of Battery Watcher's written reviews are positive against 87% of Battery Saver's, so the app with the better star average is not the one people write more warmly about.

Battery Watcher ships an update fortnightly, Battery Saver every 2 months. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Battery Watcher | Battery Saver |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (340 ratings)](https://appshunter.io/ios/app/battery-watcher/id987285213/reviews)** | [4.1 (228 ratings)](https://appshunter.io/ios/app/battery-saver-power-master/id1514077251/reviews) |
| Number of ratings | **340** | 228 |
| Positive reviews | 70.7% of reviews | **87.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 2 MB | 43 MB |
| Requires iOS | 18.6 | **11.0** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Slackerz Inc](https://appshunter.io/developer/727226094) | [Binary Bridge HK Limited](https://appshunter.io/developer/1833888839) |

## What reviewers say

### Battery Watcher

[App page](https://appshunter.io/ios/app/battery-watcher/id987285213)

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.

**Highlights:** iPhone battery status on Apple Watch, Watch face complications, 24-hour battery history, Visual charge history graph, Full charge alerts

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Battery Watcher Premium | $1.99 | one-time |

**What reviewers like**

- 👍 Clean and intuitive interface
- 🎯 Accurate battery percentage tracking
- ⌚ Seamless Apple Watch integration
- 🚀 Minimal battery drain on device
- 📊 Battery history and graphing features

**What reviewers complain about**

- 🐛 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

**Reported bugs**

- 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

**Requested features**

- 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


### Battery Saver

[App page](https://appshunter.io/ios/app/battery-saver-power-master/id1514077251)

This app helps you monitor your device's battery health and predict its remaining runtime. It offers charging reminders and maintenance tips to extend battery life. Enjoy beautiful charging screensavers while your device powers up.

**Highlights:** Predict battery runtime, Full charge reminders, Battery maintenance tips, Charging screensavers, Detailed battery status

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $6.99 | per year |
| Remove AD | $0.99 | one-time |
| LifeTime | $9.99 | one-time |

**What reviewers like**

- 🚀 Charges phone fast
- 💡 Useful battery and storage management features
- 👍 Simple and easy to use
- 🚀 Boosts RAM and frees up storage

**What reviewers complain about**

- 🐛 Doesn't work as advertised
- 🔋 Drains battery instead of saving it
- 🔒 Privacy concerns with accessing photos
- 💰 Paid version doesn't work as expected

**Reported bugs**

- App crashes or freezes
- Lifetime purchase not activated
- Ads still shown after paid upgrade

**Requested features**

- Battery usage breakdown
- Dark mode option
- Improved compatibility with newer iOS versions


## Frequently asked questions

### Is Battery Watcher free?

Battery Watcher is free to download, with in-app purchases available.

### Is Battery Saver free?

Battery Saver is free to download, with in-app purchases available.

### Which has better reviews, Battery Watcher or Battery Saver?

Battery Watcher is rated higher. Battery Watcher averages 4.5 out of 5 from 340 ratings, while Battery Saver averages 4.1 from 228 ratings.

### Do Battery Watcher or Battery Saver have ads?

Neither Battery Watcher nor Battery Saver shows ads.

### Which is updated more often, Battery Watcher or Battery Saver?

Battery Watcher ships an update fortnightly, and Battery Saver every 2 months. Most recently, Battery Watcher was updated on November 1, 2026 and Battery Saver on October 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*