# 123SmartBMS vs HaiDi Pro

The clearest difference is review sentiment: 123SmartBMS at 67% against HaiDi Pro's 0%. 123SmartBMS also leads on rating (4.5 vs 1.0) and ratings volume (21 vs 1). HaiDi Pro's advantage is iOS requirement (12.0 vs 16.0). 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.

123SmartBMS holds the better App Store score, 4.5 against 1.0. 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 0% of HaiDi Pro's.

123SmartBMS ships an update monthly, HaiDi Pro every 2 months. The most recent releases landed on September 20, 2026 and August 5, 2026 respectively.

## The numbers

| Metric | 123SmartBMS | HaiDi Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (21 ratings)](https://appshunter.io/ios/app/123smartbms/id988285264/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/haidi-pro/id6443414754/reviews) |
| Number of ratings | **21** | 1 |
| Positive reviews | **66.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | Free |
| Size | 190 MB | 122 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Albertronic B.V.](https://appshunter.io/developer/890882604) | [Haidi Energy Tehcnogy Co., Ltd](https://appshunter.io/developer/1645467042) |

## 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


### HaiDi Pro

[App page](https://appshunter.io/ios/app/haidi-pro/id6443414754)

Monitor and manage your lithium battery packs via Bluetooth. View detailed status information, set protection parameters, and receive real-time alerts for abnormalities. Access historical alarm records for troubleshooting.

**Highlights:** Connect via Bluetooth, Read battery pack status, View voltage, current, temperature, Set protection parameters, Receive abnormality alarms, Historical alarm records

**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 HaiDi Pro free?

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

### Which has better reviews, 123SmartBMS or HaiDi Pro?

123SmartBMS is rated higher. 123SmartBMS averages 4.5 out of 5 from 21 ratings, while HaiDi Pro averages 1.0 from 1 ratings.

### Do 123SmartBMS or HaiDi Pro have ads?

Neither 123SmartBMS nor HaiDi Pro shows ads.

### Which is updated more often, 123SmartBMS or HaiDi Pro?

123SmartBMS ships an update monthly, and HaiDi Pro every 2 months. Most recently, 123SmartBMS was updated on September 20, 2026 and HaiDi Pro on August 5, 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.*