123SmartBMS vs HaiDi Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
123SmartBMS
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.
- 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
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123\SmartBMS is an easy to use yet advanced, modular BMS to keep your lithium batteries in perfect condition, increasing the lifespan of the battery pack. The system measures important data like cell voltages, cell temperatures and in- and outgoing currents. It also balances all cells to the same voltage during charging. The BMS supervises the whole battery pack and has two signal relays to indicate “allow to charge” and “allow to discharge”. These signal relays can control chargers and inverters with “enable”/”disable” signals or by connecting an energy efficient power relay to the signal relay. An example is the 123\SmartRelay. Easily connect your phone to the BMS using Bluetooth to see relevant information including state of charge, energy consumed, energy stored, in- and outgoing current, cell voltages and temperatures. With 123\SmartBMS, your battery pack is in safe hands.
HaiDi Pro
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.
- Connect via Bluetooth
- Read battery pack status
- View voltage, current, temperature
- Set protection parameters
- Receive abnormality alarms
- Historical alarm records
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1. Connect the BMS Bluetooth module through the mobile phone Bluetooth to read the status information of the lithium battery pack; 2. You can view the voltage, total voltage, remaining power, real-time current, cycle times, temperature, pressure difference, etc. of each string of the battery pack, and you can set the protection parameters according to your own needs; 3. An alarm is issued when the battery pack is abnormal, which is convenient for users to check and repair, and provides historical alarm records;
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | 123SmartBMS | HaiDi Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (21 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 66.7% of reviews — better | 0.0% of reviews |
| Number of ratings | 21 — better | 1 |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 190 MB | 122 MB |
| Age rating | 4+ | 17+ |
| Developer | Albertronic B.V. | Haidi Energy Tehcnogy Co., Ltd |
Customer experience
123SmartBMS
HaiDi Pro
In-app purchases
123SmartBMS
No in-app purchases
HaiDi Pro
No in-app purchases









