BMS Tool vs BAT
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) - Daly smart BMS - 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 - History with charts and statistics: charge, power, voltage, temperatures and cells over a day, a week, a month or a year, energy per day, export as CSV - Alarms as notifications while the app runs - Home and lock screen widgets - 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.
BAT
Monitor and manage your lithium batteries in real-time with instant access to battery health, charging status, voltage, current, and temperature. This app provides advanced diagnostics and a clear interface for various applications like RVs, solar systems, and EVs.
- Real-time battery monitoring
- Battery dashboard (SOC, SOH, voltage, current)
- Individual cell monitoring
- Temperature monitoring
- Advanced diagnostics and fault detection
- Runtime estimator
- Clean and professional interface
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BAT-BMS Pro – Smart Battery Monitor Monitor and manage your lithium batteries in real time. BAT-BMS Pro gives you instant access to battery health, charging status, voltage, current, temperature, and advanced diagnostics—all from your iPhone or iPad. Whether you're monitoring RV batteries, solar energy systems, marine batteries, electric vehicles, or custom lithium battery packs, BAT-BMS Pro provides the tools you need to stay informed and maximize battery performance. FEATURES Real-Time Battery Monitoring Live battery status Charging & discharging information Instant performance updates Continuous monitoring Battery Dashboard State of Charge (SOC) State of Health (SOH) Pack Voltage Current Power Remaining Capacity Battery Status Cell Monitoring Individual cell voltages Cell voltage difference Highest & lowest cell detection Cell balancing status Temperature Monitoring Real-time temperature sensors Battery protection monitoring Thermal safety indicators Advanced Diagnostics Battery status monitoring Protection warnings Fault detection Battery health information Runtime Estimator Estimate remaining runtime based on current power consumption and available battery capacity. Clean & Professional Interface Designed for speed, clarity, and ease of use with a modern interface optimized for both iPhone and iPad. Perfect For RV & Camper Batteries Solar Energy Storage Marine Applications Electric Vehicles Off-Grid Power Systems LiFePO₄ Battery Packs DIY Battery Projects Stay connected to your battery system with accurate real-time monitoring and powerful diagnostics—all in one professional application.
Screenshots
Verdict
The clearest difference is review sentiment: BMS Tool at 71% against BAT's 0%. BMS Tool also leads on rating (3.9 vs 2.0) and update cadence (every 6 weeks vs every 3 months). BAT's advantage is in-app purchases (none vs 1). On price, ratings volume, ads 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. BAT asks for nothing beyond the download.
BMS Tool holds the better App Store score, 3.9 against 2.0. Both are backed by a comparable volume of ratings — 7 and 4 respectively. Written reviews point the same way: 71% of BMS Tool's written reviews are positive against 0% of BAT's.
BMS Tool ships an update every 6 weeks, BAT every 3 months. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.
| Parameter | BMS Tool | BAT |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (7 ratings) — better | 2.0 (4 ratings) |
| Positive reviews | 71.4% of reviews — better | 0.0% of reviews |
| Number of ratings | 7 — better | 4 |
| Update frequency | Every 6 weeks — better | Every 3 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 16.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 21 MB | 18 MB |
| Age rating | 4+ | 12+ |
| Developer | e77code GmbH | Mouad Bousbaa |
Customer experience
BMS Tool
BAT
In-app purchases
BMS Tool
- Remove Ads$3.99
BAT
No in-app purchases









