123SmartBMS vs Sunlink BMS
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.
Sunlink BMS
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Sunlink BMS is an intelligent battery management platform, which can support up to 20 strings of display. Using Bluetooth wireless connection to monitor detailed battery information in real time, such as charging and discharging voltage, charging and discharging current, pack temperature and cell temperature.Supporting bluetooth scanning connection, and bilingual display in Chinese and English.
Screenshots
Verdict
The clearest difference is update cadence: 123SmartBMS at monthly against Sunlink BMS's every 3 months. Sunlink BMS's advantage is iOS requirement (9.0 vs 16.0). On price, ads, in-app purchases and device support 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 ships an update monthly, Sunlink BMS every 3 months. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.
| Parameter | 123SmartBMS | Sunlink BMS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (21 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 21 — better | — |
| Update frequency | Monthly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 190 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Albertronic B.V. | Shenzhen RF-star Technology Co., Ltd |
In-app purchases
123SmartBMS
No in-app purchases
Sunlink BMS
No in-app purchases
