# EP vs BMS

The clearest difference is rating: BMS at 5.0 against EP's 2.0. EP's advantage is ratings volume (23 vs 1) and iOS requirement (8.0 vs 15.0). On price, review sentiment, update cadence and ads there is nothing between them.

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

BMS holds the better App Store score, 5.0 against 2.0. That said, the two scores are not equally well evidenced: EP has 23 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 15% of EP's written reviews are positive against 20% of BMS's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 7, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | EP | BMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (23 ratings)](https://appshunter.io/ios/app/ep-01/id1330876647/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bms-tool/id6471949475/reviews)** |
| Number of ratings | **23** | 1 |
| Positive reviews | 15.4% of reviews | **20.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 30 MB | 40 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [BEIJING EPSOLAR TECHNOLOGY CO., LTD.](https://appshunter.io/developer/1330876646) | [秀丽 唐](https://appshunter.io/developer/1715570419) |

## What reviewers say

### EP

[App page](https://appshunter.io/ios/app/ep-01/id1330876647)

This communication software connects controllers and inverters. It supports 485 and infrared interfaces, automatically switching content based on device name for simplified operation.

**Highlights:** Controller and inverter communication, Supports 485 interface, Supports infrared controller, Automatic content switching, Simplified user operation

**Features:** macOS Compatibility

**In-app purchases:** none


### BMS

[App page](https://appshunter.io/ios/app/bms-tool/id6471949475)

Monitor and manage your device's battery health with real-time data, historical records, and customizable alerts for over-charge, over-discharge, and temperature. Connect locally via Bluetooth or remotely via Wi-Fi to track battery status, cell performance, and potential issues.

**Highlights:** Real-time battery data (current, voltage, SOC, SOH), Cell-level monitoring, Historical alarm and protection records, Customizable warning values, Bluetooth and Wi-Fi connectivity, Device sharing and management

**In-app purchases:** none


## Frequently asked questions

### Is EP free?

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

### Is BMS free?

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

### Which has better reviews, EP or BMS?

BMS is rated higher. EP averages 2.0 out of 5 from 23 ratings, while BMS averages 5.0 from 1 ratings.

### Do EP or BMS have ads?

Neither EP nor BMS shows ads.

### Which is updated more often, EP or BMS?

EP ships an update every 2 months, and BMS every 2 months. Most recently, EP was updated on October 7, 2026 and BMS on September 23, 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.*