Comparison

BMS Tool vs UltimatronFrance

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

UltimatronFrance

Monitor your battery's health in real-time, tracking temperature, current, and voltage. Receive alarms for equalization and fault reminders from the protection system. Access historical battery parameter data.

Highlights
  • Real-time battery temperature monitoring
  • Real-time current and voltage monitoring
  • Battery equalization alarms
  • Protection system fault reminders
  • Historical battery parameter retrieval
Features
Read full description

Experts in battery protection app features: *Real time monitoring of battery temperature *Real time monitoring of current and voltage *Alarm when battery equalization occurs *The protection system sends fault reminders *The parameter information of battery history can be retrieved

Screenshots

BMS Tool4 screens
UltimatronFrance4 screens

Verdict

The call

The clearest difference is review sentiment: BMS Tool at 71% against UltimatronFrance's 19%. UltimatronFrance's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

BMS Tool ships an update every 6 weeks, UltimatronFrance every 3 weeks. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
BMS Tool versus UltimatronFrance: the parameters behind the verdict, then further details
ParameterBMS ToolUltimatronFrance
PriceFreeFree
Rating3.9 (7 ratings) — better—
Positive reviews71.4% of reviews — better18.8% of reviews
Number of ratings7 — better—
Update frequencyEvery 6 weeksEvery 3 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS16.012.0 — better
Further details — not scored
Size21 MB71 MB
Age rating4+17+
Developere77code GmbHULTIMATRON FRANCE

Customer experience

BMS Tool

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

UltimatronFrance

Written reviews69 reviews
Positive18.8%
Neutral13.0%
Negative68.1%

In-app purchases

1 purchases

BMS Tool

One-time1
  • Remove Ads$3.99
None

UltimatronFrance

No in-app purchases

Questions

Is BMS Tool free?
BMS Tool is free to download, with in-app purchases available.
Is UltimatronFrance free?
UltimatronFrance is free to download, with no in-app purchases.
Do BMS Tool or UltimatronFrance have ads?
BMS Tool shows ads; UltimatronFrance does not.
Which is updated more often, BMS Tool or UltimatronFrance?
BMS Tool ships an update every 6 weeks, and UltimatronFrance every 3 weeks. Most recently, BMS Tool was updated on November 7, 2026 and UltimatronFrance on November 3, 2026.

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