# Zen Battery vs Phien

The clearest difference is in-app purchases: Phien at none against Zen Battery's 3. Phien also leads on update cadence (every 11 days vs every 18 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Zen Battery sells 3 in-app purchases, starting at $1.99 per month. Phien asks for nothing beyond the download.

Zen Battery ships an update every 18 months, Phien every 11 days. The most recent releases landed on October 14, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Zen Battery | Phien |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (8.1K ratings)](https://appshunter.io/ios/app/zen-battery/id466431322/reviews)** | — |
| Number of ratings | **8.1K** | — |
| Positive reviews | 89.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 11 days** |
| Monetization | Subscription | — |
| Size | 117 MB | 1 MB |
| Requires iOS | 17.6 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shinobit LLC](https://appshunter.io/developer/1680633187) | [Thong Quang Vu](https://appshunter.io/developer/1700584615) |

## What reviewers say

### Zen Battery

[App page](https://appshunter.io/ios/app/zen-battery/id466431322)

This app provides detailed battery information for your iPhone and iPad, including remaining hours for various activities. Customize the visual display with fluid animations and color options. Receive alerts when your device is fully charged.

**Highlights:** Battery life estimation for music, video, calls, and internet, Customizable 'Zen' display modes, Interactive fluid battery animation, Adjustable liquid color and battery design, Full charge warning sound, Widgets for quick battery status

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Yearly Subscription | $9.99 | per year |
| Lifetime | $19.99 | one-time |

**What reviewers like**

- 👍 Reliable battery monitoring
- 🚀 Accurate battery percentage display
- 💡 Customizable battery color
- 👍 Simple and easy to use
- 👍 Large, clear battery visualization

**What reviewers complain about**

- 🔋 High battery consumption
- 🐛 Inconsistent battery percentage accuracy
- 🔋 Drains device battery quickly
- 🔒 Subscription-based model

**Reported bugs**

- App freezes or crashes
- Ads break app functionality

**Requested features**

- 12-hour clock option
- Battery saver mode
- Widget support
- Ability to disable ads


### Phien

[App page](https://appshunter.io/ios/app/phien/id6479043976)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Zen Battery free?

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

### Is Phien free?

Phien is free to download, with no in-app purchases.

### Do Zen Battery or Phien have ads?

Neither Zen Battery nor Phien shows ads.

### Which is updated more often, Zen Battery or Phien?

Zen Battery ships an update every 18 months, and Phien every 11 days. Most recently, Zen Battery was updated on October 14, 2026 and Phien on September 28, 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.*