# 123SmartBMS vs EG4 EX

The clearest difference is rating: 123SmartBMS at 4.5 against EG4 EX's 2.3. 123SmartBMS also leads on ratings volume (21 vs 3). EG4 EX's advantage is update cadence (every 2 weeks vs monthly) and iOS requirement (11.0 vs 16.0). 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.

123SmartBMS holds the better App Store score, 4.5 against 2.3. That said, the two scores are not equally well evidenced: 123SmartBMS has 21 ratings behind it against 3, so its average is the more settled of the two.

123SmartBMS ships an update monthly, EG4 EX every 2 weeks. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | 123SmartBMS | EG4 EX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (21 ratings)](https://appshunter.io/ios/app/123smartbms/id988285264/reviews)** | [2.3 (3 ratings)](https://appshunter.io/ios/app/eg4-ex/id6449516447/reviews) |
| Number of ratings | **21** | 3 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 190 MB | 91 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Albertronic B.V.](https://appshunter.io/developer/890882604) | [Naveen Tera](https://appshunter.io/developer/1683496893) |

## 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


### EG4 EX

[App page](https://appshunter.io/ios/app/eg4-ex/id6449516447)

Monitor your energy storage machine's status in real-time with this mobile application. It offers convenient and quick access to data, featuring clear visualizations of both current and historical information. The software is designed for efficient data transfer, minimizing internet traffic.

**Highlights:** Real-time status monitoring, Historical data display, Data visualization charts, Low internet traffic usage, Multi-dimensional data display

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 123SmartBMS free?

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

### Is EG4 EX free?

EG4 EX is free to download, with no in-app purchases.

### Which has better reviews, 123SmartBMS or EG4 EX?

123SmartBMS is rated higher. 123SmartBMS averages 4.5 out of 5 from 21 ratings, while EG4 EX averages 2.3 from 3 ratings.

### Do 123SmartBMS or EG4 EX have ads?

Neither 123SmartBMS nor EG4 EX shows ads.

### Which is updated more often, 123SmartBMS or EG4 EX?

123SmartBMS ships an update monthly, and EG4 EX every 2 weeks. Most recently, 123SmartBMS was updated on October 24, 2026 and EG4 EX on October 22, 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.*