# 123SmartBMS vs EP

The clearest difference is review sentiment: 123SmartBMS at 67% against EP's 15%. 123SmartBMS also leads on rating (4.5 vs 2.0). EP's advantage is iOS requirement (8.0 vs 16.0). On price, ratings volume, 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.

123SmartBMS holds the better App Store score, 4.5 against 2.0. Both are backed by a comparable volume of ratings — 21 and 23 respectively. Written reviews point the same way: 67% of 123SmartBMS's written reviews are positive against 15% of EP's.

123SmartBMS ships an update monthly, EP every 2 months. The most recent releases landed on October 7, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 123SmartBMS | EP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (21 ratings)](https://appshunter.io/ios/app/123smartbms/id988285264/reviews)** | [2.0 (23 ratings)](https://appshunter.io/ios/app/ep-01/id1330876647/reviews) |
| Number of ratings | 21 | **23** |
| Positive reviews | **66.7% of reviews** | 15.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | Free |
| Size | 190 MB | 30 MB |
| Requires iOS | 16.0 | **8.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Albertronic B.V.](https://appshunter.io/developer/890882604) | [BEIJING EPSOLAR TECHNOLOGY CO., LTD.](https://appshunter.io/developer/1330876646) |

## What reviewers say

### 123SmartBMS

[App page](https://appshunter.io/ios/app/123smartbms/id988285264)

This app monitors and manages lithium battery packs, ensuring optimal condition and extended lifespan. It tracks cell voltages, temperatures, and currents, while balancing cells during charging. Connect via Bluetooth to view real-time battery status and control charging/discharging.

**Highlights:** Monitors cell voltages and temperatures, Tracks in- and outgoing currents, Balances cells during charging, Bluetooth connectivity for real-time data, Controls charge/discharge signals, Extends battery pack lifespan

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is 123SmartBMS free?

123SmartBMS is free to download, with no in-app purchases.

### Is EP free?

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

### Which has better reviews, 123SmartBMS or EP?

123SmartBMS is rated higher. 123SmartBMS averages 4.5 out of 5 from 21 ratings, while EP averages 2.0 from 23 ratings.

### Do 123SmartBMS or EP have ads?

Neither 123SmartBMS nor EP shows ads.

### Which is updated more often, 123SmartBMS or EP?

123SmartBMS ships an update monthly, and EP every 2 months. Most recently, 123SmartBMS was updated on October 7, 2026 and EP on October 16, 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.*