Comparison

BMS Tool vs BAT

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

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.

Highlights
  • 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
Read full description

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

BMS Tool4 screens
BAT4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. BMS Tool sells 1 one-off in-app purchase. BAT asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
BMS Tool versus BAT: the parameters behind the verdict, then further details
ParameterBMS ToolBAT
PriceFreeFree
Rating3.9 (7 ratings) — better2.0 (4 ratings)
Positive reviews71.4% of reviews — better0.0% of reviews
Number of ratings7 — better4
Update frequencyEvery 6 weeks — betterEvery 3 months
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS16.0 — better16.6
Further details — not scored
Size21 MB18 MB
Age rating4+12+
Developere77code GmbHMouad Bousbaa

Customer experience

BMS Tool

All ratings7 ratings
Positive71.4%
Neutral0.0%
Negative28.6%
Written reviews7 reviews
Positive71.4%
Neutral14.3%
Negative14.3%

BAT

All ratings3 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

1 purchases

BMS Tool

One-time1
  • Remove Ads$3.99
None

BAT

No in-app purchases

Questions

Is BMS Tool free?
BMS Tool is free to download, with in-app purchases available.
Is BAT free?
BAT is free to download, with no in-app purchases.
Which has better reviews, BMS Tool or BAT?
BMS Tool is rated higher. BMS Tool averages 3.9 out of 5 from 7 ratings, while BAT averages 2.0 from 4 ratings.
Do BMS Tool or BAT have ads?
Both BMS Tool and BAT show ads.
Which is updated more often, BMS Tool or BAT?
BMS Tool ships an update every 6 weeks, and BAT every 3 months. Most recently, BMS Tool was updated on November 7, 2026 and BAT on November 5, 2026.

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