# Zen Battery vs RoadFixSTP

The clearest difference is in-app purchases: RoadFixSTP at none against Zen Battery's 3. RoadFixSTP 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. RoadFixSTP asks for nothing beyond the download.

Zen Battery ships an update every 18 months, RoadFixSTP every 11 days. The most recent releases landed on October 18, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Zen Battery | RoadFixSTP |
| --- | --- | --- |
| 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 | 11 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Shinobit LLC](https://appshunter.io/developer/1680633187) | [DB Tech LLC (MN)](https://appshunter.io/developer/1875759376) |

## 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


### RoadFixSTP

[App page](https://appshunter.io/ios/app/roadfixstp/id6764143445)

**Features:** macOS Compatibility, 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 RoadFixSTP free?

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

### Do Zen Battery or RoadFixSTP have ads?

Neither Zen Battery nor RoadFixSTP shows ads.

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

Zen Battery ships an update every 18 months, and RoadFixSTP every 11 days. Most recently, Zen Battery was updated on October 18, 2026 and RoadFixSTP on October 10, 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.*