BMS Tool vs MarBMS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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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BMS Tool shows the state of your battery from its battery management system (BMS) over Bluetooth, on the iPhone, the iPad, the Mac and the Apple Watch. Supported BMS: - JBD / XiaoXiang smart BMS, also in Liontron batteries - JK BMS (Jikong) - ANT BMS, the older boards and the newer ANT-BLE boards - Seplos V2 and V3 - Redodo, LiTime, PowerQueen and Starry Sea batteries - WattCycle batteries - Wattstunde LiFePO4 and Wattstunde Nova Core batteries - Ective, LiFeBlue, KiloVault, Enerdrive, Noovi and StartCraft batteries Features: - Charge, voltage, current and power at a glance - Time until full while charging and until empty while discharging, estimated from the present current - Every cell voltage with minimum, maximum, difference and balancing - Temperature sensors, alarms and BMS information - Several batteries in one list, each with its own name - Search for new devices can be switched off: only your own batteries stay in the list - Session values and a CSV log of the readings - Home screen widget - Apple Watch app with complications: charge, cells, temperatures and alarms of the battery open on the iPhone - The display can stay on while the app is open The app reads the values of the BMS and does not change its settings. Ideas and requests are welcome at web.e77code.com/bms-tool.
MarBMS
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BMS Smart Management App is a mobile application designed for Battery Management Systems (BMS). With Bluetooth connection, you can easily discover and connect to nearby BMS devices to monitor real-time battery status and configure system parameters. Bluetooth Scan & Connect: Automatically detect nearby BMS devices and connect with one tap. Battery Status Monitoring: View pack voltage, current, SOC (State of Charge), SOH (State of Health), temperature, and more in real time. Cell-level Data: Access detailed cell voltages, balancing status, fault alarms, and diagnostics. Parameter Configuration: Adjust protection thresholds, charging/discharging strategies, and other settings. History & Logs: Record operation history and provide trend charts for performance tracking.
Screenshots
Verdict
The clearest difference is in-app purchases: MarBMS at none against BMS Tool's 1. MarBMS also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 2 months). BMS Tool's advantage is device support (4 vs 2). On price and iOS requirement 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. MarBMS asks for nothing beyond the download.
BMS Tool ships an update every 2 months, MarBMS every 2 weeks. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.
| Parameter | BMS Tool | MarBMS |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (7 ratings) — better | — |
| Positive reviews | 71.4% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 20 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | e77code GmbH | Guangdong Marxon Electronics Co., LTD |
In-app purchases
BMS Tool
- Remove Ads$3.99
MarBMS
No in-app purchases









