# RoyPow Fish. vs Pro

The clearest difference is rating: Pro at 5.0 against RoyPow Fish.'s 1.5. Pro also leads on update cadence (every 2 weeks vs every 5 weeks). RoyPow Fish.'s advantage is ratings volume (4 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Pro holds the better App Store score, 5.0 against 1.5. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

RoyPow Fish. ships an update every 5 weeks, Pro every 2 weeks. Both last shipped on September 10, 2026.

## The numbers

| Metric | RoyPow Fish. | Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (4 ratings)](https://appshunter.io/ios/app/roypow-fish/id6446618041/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pro-guide-ev/id6648759979/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 27 MB | 69 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [深圳市环宇鼎鑫科技有限公司](https://appshunter.io/developer/1639662642) | [Battery Outfitters, Inc](https://appshunter.io/developer/1643911275) |

## What reviewers say

### RoyPow Fish.

[App page](https://appshunter.io/ios/app/roypow-fish/id6446618041)

Monitor your battery management system (BMS) directly from your mobile device. Connect via Bluetooth to view battery status and parameters in real-time.

**Highlights:** Bluetooth connection, Battery BMS monitoring, Real-time parameter viewing, Mobile phone compatibility

**Features:** macOS Compatibility

**In-app purchases:** none


### Pro

[App page](https://appshunter.io/ios/app/pro-guide-ev/id6648759979)

Monitor your battery's real-time status, including voltage, current, and internal resistance. Track historical data, compare cell performance, and receive alerts for temperature, short circuits, and voltage deviations. This system helps optimize lithium battery health and lifespan.

**Highlights:** Real-time voltage, current, power monitoring, Battery cell comparison and balance display, Cell temperature and fault warnings, Historical data charting, Bluetooth connectivity to equalizer, Alarm prompts for critical parameters

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RoyPow Fish. free?

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

### Is Pro free?

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

### Which has better reviews, RoyPow Fish. or Pro?

Pro is rated higher. RoyPow Fish. averages 1.5 out of 5 from 4 ratings, while Pro averages 5.0 from 1 ratings.

### Do RoyPow Fish. or Pro have ads?

Neither RoyPow Fish. nor Pro shows ads.

### Which is updated more often, RoyPow Fish. or Pro?

RoyPow Fish. ships an update every 5 weeks, and Pro every 2 weeks. Most recently, RoyPow Fish. was updated on September 10, 2026 and Pro on September 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.*