Comparison

极空BMS vs BMS Tool

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

Head to head
About

极空BMS

This application connects to a battery management system's active equalizer via Bluetooth. It allows for real-time monitoring of parameters and control over equipment settings.

Highlights
  • Real-time status monitoring
  • Operating parameter settings
  • Battery management system equipment control
  • Bluetooth connectivity
Features
Read full description

This APP is used in the battery management system, and connects to the active equalizer of the extreme space technology through Bluetooth to realize the parameter display and setting of the active equalizer. The specific function modules are as follows: -Real-time status monitoring; -Setting of operating parameters; -Battery management system equipment control.

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) - 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.

Screenshots

极空BMS4 screens
BMS Tool3 screens

Verdict

The call

The clearest difference is review sentiment: BMS Tool at 71% against 极空BMS's 34%. BMS Tool also leads on rating (3.9 vs 3.4) and device support (4 vs 1). 极空BMS's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price 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. 极空BMS asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

BMS Tool holds the better App Store score, 3.9 against 3.4. That said, the two scores are not equally well evidenced: 极空BMS has 38 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 34% of 极空BMS's written reviews are positive against 71% of BMS Tool's.

UpkeepUpdate frequency

极空BMS ships an update every 3 weeks, BMS Tool every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard9 real differences · 1 level
极空BMS versus BMS Tool: the parameters behind the verdict, then further details
Parameter极空BMSBMS Tool
PriceFreeFree
Rating3.4 (38 ratings)3.9 (7 ratings) — better
Positive reviews34.3% of reviews71.4% of reviews — better
Number of ratings38 — better7
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone, iPad, iPod, Apple Watch — better
Requires iOS1715.0 — better
Further details — not scored
Size36 MB20 MB
Age rating17+4+
Developer鹏 张e77code GmbH

Customer experience

极空BMS

All ratings37 ratings
Positive62.2%
Neutral5.4%
Negative32.4%
Written reviews143 reviews
Positive34.3%
Neutral16.1%
Negative49.7%

BMS Tool

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

In-app purchases

None

极空BMS

No in-app purchases

1 purchases

BMS Tool

One-time1
  • Remove Ads$3.99

Questions

Is 极空BMS free?
极空BMS is free to download, with no in-app purchases.
Is BMS Tool free?
BMS Tool is free to download, with in-app purchases available.
Which has better reviews, 极空BMS or BMS Tool?
BMS Tool is rated higher. 极空BMS averages 3.4 out of 5 from 38 ratings, while BMS Tool averages 3.9 from 7 ratings.
Do 极空BMS or BMS Tool have ads?
BMS Tool shows ads; 极空BMS does not.
Which is updated more often, 极空BMS or BMS Tool?
极空BMS ships an update every 3 weeks, and BMS Tool every 2 months. Most recently, 极空BMS was updated on November 2, 2026 and BMS Tool on November 3, 2026.

Other comparisons