# 123SmartBMS vs EM3ev Battery Analyst

The clearest difference is rating: EM3ev Battery Analyst at 5.0 against 123SmartBMS's 4.5. EM3ev Battery Analyst also leads on review sentiment (100% vs 67%). 123SmartBMS's advantage is ratings volume (21 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

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

EM3ev Battery Analyst holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: 123SmartBMS has 21 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 67% of 123SmartBMS's written reviews are positive against 100% of EM3ev Battery Analyst's.

123SmartBMS ships an update monthly, EM3ev Battery Analyst every 2 months. The most recent releases landed on September 20, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | 123SmartBMS | EM3ev Battery Analyst |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (21 ratings)](https://appshunter.io/ios/app/123smartbms/id988285264/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/em3ev-battery-analyst/id6504488089/reviews)** |
| Number of ratings | **21** | 1 |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | Free |
| Size | 190 MB | 2 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Albertronic B.V.](https://appshunter.io/developer/890882604) | [Bjørn-Andreas Lamo](https://appshunter.io/developer/1752480933) |

## 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


### EM3ev Battery Analyst

[App page](https://appshunter.io/ios/app/em3ev-battery-analyst/id6504488089)

Monitor your EM3ev battery's performance in real-time. View voltage, current, temperature, and individual cell voltages. Track power consumption over time and access detailed battery status information.

**Highlights:** Bluetooth connectivity, Real-time voltage and current readings, Individual cell voltage monitoring, Temperature monitoring, Power consumption tracking, Battery information and state display

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 123SmartBMS free?

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

### Is EM3ev Battery Analyst free?

EM3ev Battery Analyst is free to download, with no in-app purchases.

### Which has better reviews, 123SmartBMS or EM3ev Battery Analyst?

EM3ev Battery Analyst is rated higher. 123SmartBMS averages 4.5 out of 5 from 21 ratings, while EM3ev Battery Analyst averages 5.0 from 1 ratings.

### Do 123SmartBMS or EM3ev Battery Analyst have ads?

Neither 123SmartBMS nor EM3ev Battery Analyst shows ads.

### Which is updated more often, 123SmartBMS or EM3ev Battery Analyst?

123SmartBMS ships an update monthly, and EM3ev Battery Analyst every 2 months. Most recently, 123SmartBMS was updated on September 20, 2026 and EM3ev Battery Analyst on September 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.*