123SmartBMS vs BMS Tool
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.
BMS Tool
Monitor your battery management systems via Bluetooth. Supports multiple BMS types including Liontron, XiaoXiang, ANT, and Wattstunde. Offers a screen always-on mode and macOS compatibility.
- Screen Always ON mode
- Multiple BMS support
- Liontron BMS read-only
- XiaoXiang BMS read-only
- ANT BMS read-only
- Wattstunde LiFePo4 read-only
- macOS support
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Universal BMS (Battery Management) monitoring app. Actual functionality: - Screen Always ON mode - Multiple BMS View / support - Read only support for Liontron BMS - Read only support for XiaoXiang BMS - Read only support for ANT BMS - Read only support for Wattstunde LiFePo4 batteries - Support for macOS Functionality Requests please submit on GitHub.
Screenshots
Verdict
The clearest difference is rating: 123SmartBMS at 4.5 against BMS Tool's 3.9. 123SmartBMS also leads on in-app purchases (none vs 1) and ads (none vs shown). On price, review sentiment, update cadence 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. BMS Tool sells 1 one-off in-app purchase. 123SmartBMS asks for nothing beyond the download.
123SmartBMS holds the better App Store score, 4.5 against 3.9. Both are backed by a comparable volume of ratings — 21 and 7 respectively. Written reviews complicate that: 67% of 123SmartBMS's written reviews are positive against 71% of BMS Tool's, so the app with the better star average is not the one people write more warmly about.
123SmartBMS ships an update monthly, BMS Tool every 2 months. The most recent releases landed on September 20, 2026 and September 16, 2026 respectively.
| Parameter | 123SmartBMS | BMS Tool |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (21 ratings) — better | 3.9 (7 ratings) |
| Positive reviews | 66.7% of reviews | 71.4% of reviews — better |
| Number of ratings | 21 — better | 7 |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.2 — better |
| Further details — not scored | ||
| Size | 190 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Albertronic B.V. | e77code GmbH |
Customer experience
123SmartBMS
BMS Tool
In-app purchases
123SmartBMS
No in-app purchases
BMS Tool
- Remove Ads$1.99
