# Battery Saver - Power Master — battery saver  & power manager

> Device battery status checker, runtime predictor, and charging manager. (iPhone/iPad app by Binary Bridge HK Limited.)

- Source: https://appshunter.io/ios/app/battery-saver-power-master/id1514077251 (this page in markdown: same URL + `.md`)
- Developer: [Binary Bridge HK Limited](https://appshunter.io/developer/1833888839)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 4.10/5 from 228 App Store ratings · 328 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 43 MB
- Languages: American English
- Released: 2020-05-23
- Data updated: 2026-08-23
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/battery-saver-power-master/id1514077251/reviews.md

## What is Battery Saver?

Battery Saver - Power Master is a simple but professional tool to check battery status. Battery Saver can visualize the details of battery precisely and protect your battery. Download now ！

-Predict the runtime of battery : no more concern about power off 
-Remind you to stop when the battery is fully charged
-Tips for battery maintenance
-Beautiful screensavers when your iPhone is charging

Auto-renewable subscriptions
- $0.99 per week
- $6.99 per year
- $9.99 for Lifetime

Rules that apply to all subscriptions:
– Payment will be charged to iTunes Account at confirmation of purchase
– Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period
– Account will be charged for renewal within 24-hours before the end of the current period, and identify the cost of the renewal
– Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase
– Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable

* Terms of Use:https://batterysaverpro.cometprivacy.com/privacy
* Privacy Policy:https://batterysaverpro.cometprivacy.com/terms
* Contact us:https://batterysaverpro.cometprivacy.com/support

## Key features

- Predict battery runtime
- Full charge reminders
- Battery maintenance tips
- Charging screensavers
- Detailed battery status

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $6.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove AD | $0.99 | one-time |
| LifeTime | $9.99 | one-time |


## What do users think of Battery Saver?

Overall sentiment: negative

**Pros**

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

**Cons**

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

**Commonly reported bugs**

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

**Most requested features**

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

## Recent user reviews (10 of 328)

All indexed reviews: https://appshunter.io/ios/app/battery-saver-power-master/id1514077251/reviews.md

### 5/5 — battery saver

*2026-03-20, version 1.4*

excellent work

### 1/5 — Remboursement demandé

*2024-09-09*

Après avoir payé pour une utilisation à vie, l’app me demande de payer, les pubs envahissent les écrans. La réinstallation de l’app n’a rien changé. Déçu

### 1/5 — Pro version doesn’t work

*2024-09-05*

So I paid 10 euros for upgrade to Pro, but even after restarting my phone the Pro version doesn’t seem to work. “Extend battery life” doesn’t work, it just requests me to upgrade again. I also keep seeing ads. iPhone SE 2022. I emailed support but no response.

### 1/5 — NO FUNCIONA

*2023-11-30*

No funciona en Ios 17

### 1/5 — Does Not Wirk on my iPhone 11 with iOS17

*2023-11-06, version 1.4*

All that comes up is the percent of my battery charged with the background of the ocean. There are no buttons or menu to tap.

### 5/5 — I love it💕

*2023-09-01*

It works a lot I love it I recommend it to everyone who is looking at these reviews please download it!!!🥰💕

### 5/5 — Best app ever

*2023-09-01*

Who ever is watching just download it’s the best freaking app ever recommend put on charger and ho on app it charges really FAST
Then ever like even if you have a fast charger then it even makes it faster!!!

### 5/5 — Top

*2023-08-17*

Nutze ich seit Jahren und ist top!
Der Kauf lohnt sich aber nicht da sich die „free“-Version von der Bezahlversion nicht unterscheidet. Die/das Werbebanner zum kaufen der App bleibt - Leider.

### 1/5 — Lifetime Pro Features not activated after purchase

*2023-02-18, version 1.4*

I contacted the Developer but decided to just request a refund from Apple after seeing that other people had this same issue a year ago. I assume no work around bothered with in that time.

### 5/5 — Best game ever

*2023-01-27, version 1.4*

It dels copy’s and saves battery life.This app is very very useful.Thank you creator!

## Frequently asked questions about Battery Saver

### What does this battery saver app do?

This app provides a professional tool to check your device's battery status, visualize battery details, and protect your battery. It can predict the remaining runtime, remind you when the battery is fully charged, and offer tips for battery maintenance.

### What are the key features of this app?

Key features include predicting your battery's runtime to avoid unexpected power loss, reminding you to stop charging when the battery is full, providing tips for better battery maintenance, and offering beautiful screensavers that display while your device is charging.

### How much does the app cost?

The app offers auto-renewable subscriptions with options for weekly ($0.99), yearly ($6.99), and lifetime ($9.99) access. Payment is charged to your iTunes Account upon confirmation of purchase.

### Is this app compatible with my device?

While the description mentions iPhone, the app is designed as a battery saver and power manager tool. Specific compatibility details for different iOS versions or device models are not explicitly stated but it is generally aimed at mobile devices.

### What are common use cases for this app?

Common use cases include wanting to know exactly how much longer your phone will last on its current charge, ensuring you don't overcharge your battery, learning how to properly care for your battery to extend its lifespan, and enjoying a visually appealing charging experience.

## Version history (last 5 releases)

### 1.4 — 2021-09-01

1.Optimize product experience.

### 1.3 — 2020-09-25

Minor bugs fixed.

### 1.2 — 2020-08-18

Minor bug fixes

### 1.1 — 2020-08-11

New features：
- Phone cleaning
- Performance benchmark

Improvements：
- Battery charging phases information
- Improved battery power estimation algorithm

And bug fixes

### 1.0 — 2020-05-24

No release notes.

## Apps similar to Battery Saver

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Battery Life - check runtimes](https://appshunter.io/ios/app/battery-life-check-runtimes/id1080930585) | 4.6 (33,586) | Free | Utilities |
| [Battery Life Health Doctor Pro](https://appshunter.io/ios/app/battery-life-health-doctor-pro/id1180887748) | 4.4 (7,889) | Free | Utilities |
| [Battery HD+](https://appshunter.io/ios/app/battery-hd-plus/id331453283) | 4.5 (2,716) | Free | Utilities |
| [Battery Life Status, Saver](https://appshunter.io/ios/app/battery-life-status-saver/id1562152284) | 4.0 (111) | Free | Utilities |
| [Battery Testing](https://appshunter.io/ios/app/battery-testing/id887730232) | 4.5 (12,252) | Free | Utilities |
| [Battery saver - wifi analyzer](https://appshunter.io/ios/app/battery-saver-wifi-analyzer/id1178712789) | 4.2 (236) | Free | Utilities |

## More apps by Binary Bridge HK Limited

- [Ads Blocker - Fast & Complete](https://appshunter.io/ios/app/ads-blocker-fast-and-complete/id1574850101)
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- [Home Security Camera Scan](https://appshunter.io/ios/app/home-security-camera-scan/id6756993596)

All apps by Binary Bridge HK Limited: https://appshunter.io/developer/1833888839

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*