Comparison

MultiBMS vs JK BMS

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

Head to head
About

MultiBMS

Monitor multiple Bluetooth-enabled battery management systems from your iPhone. View detailed pack voltage, cell voltages, current, power, state of charge, and temperature. Build custom battery groups and visualize charging activity.

Highlights
  • Connect to multiple BMS devices
  • Detailed pack and cell diagnostics
  • Build custom parallel/series battery groups
  • Visualize charging and discharging
  • Apple Watch companion preview
  • Supports JiKong and JBD/Xiaoxiang hardware
Features
Read full description

Most battery apps show you one pack. MultiBMS shows you the whole system. Connect every Bluetooth BMS you own, group them the way they're actually wired, and watch the entire bank behave as one — voltage, current, power, state of charge, temperature, capacity and every individual cell, live. SEE THE WHOLE BANK AT ONCE Build a group from any number of packs and MultiBMS aggregates it properly — parallel banks sum their current and capacity, series strings sum their voltage. One gauge for the bank, and every pack underneath it. Six batteries in an off-grid build read as one system instead of six apps you keep switching between. EVERY CELL, FOUR WAYS Bars, heat map, rows or grid. Minimum, maximum and delta across the whole bank or per pack, with the weak cell called out before it becomes a problem. Watch the balancer work in real time. RECORD WHAT ACTUALLY HAPPENED Start a recording and MultiBMS logs the run at one-second resolution. Pick a Battery Bank preset for a house system or a Vehicle preset for a ride, choose exactly which metrics to capture, and add per-cell and per-pack detail when you want the full picture. A live dyno cockpit shows the run as it happens — speed, volts, amps, kilowatts, state of charge, G-force — with peak draw, peak power and energy pulled tracked as you go. REPLAY IT LIKE FOOTAGE Cinema Replay plays any recorded run back as a scrubbing timeline with every channel drawn together. Find the moment the voltage sagged, the moment the pack got hot, the moment you hit peak power. Then export it: CSV for a spreadsheet, a formatted PDF report, or a share card that fits in a message. ON YOUR WRIST The Apple Watch app is a full second screen, not a notification relay. A live dyno cockpit that mirrors the run on your phone. Race Control with lap timing and per-lap energy. Ride profiles for e-bikes, karts and carts with GPS speed, distance and G-force. Fleet and cell views for the whole bank. Start and stop a recording from your wrist and the phone follows. ALERTS THAT MATTER Set your own limits for pack temperature, low pack voltage and low cell voltage. MultiBMS tells you the moment something crosses the line, whether you're looking at the app or not. MAKE IT LOOK LIKE YOUR RIG Thirteen interface skins, from an off-grid instrument bay to a racing cluster, marine, aviation, industrial and a retro terminal. Four dyno themes for the recorder. Four charge-flow animations — rail, orbit, mist and plasma — so charging and discharging read at a glance from across the room. WORKS WITH YOUR HARDWARE MultiBMS speaks 30 Bluetooth Low Energy BMS protocols covering drop-in lithium packs, server-rack storage, active balancers, shunt meters and portable power stations. Support varies by model and firmware — the full, current compatibility list lives at multibms.com. Not sure yours is covered? Email support@multibms.com with your battery and BMS model. We add protocols, and we're quick about it. READ-ONLY BY DESIGN MultiBMS reads telemetry. It does not write settings, change limits or reconfigure your BMS. Your battery keeps doing exactly what it was doing. NO ACCOUNT, NO SUBSCRIPTION No sign-up, no cloud, no recurring charge. Your data stays on your device. Premium skins are optional one-time purchases.

About

JK BMS

This utility app connects via Bluetooth to an active balancer for battery management. It allows for real-time monitoring of system status, setting operational parameters, and controlling battery management devices.

Highlights
  • Real-time status monitoring
  • Running parameter settings
  • Battery management system device control
  • Bluetooth connectivity
  • Active balancer integration
Features
Read full description

This APP is used for battery management systems and connects to active equalizers via Bluetooth, enabling the display and setting of parameters for the active equalizers. The specific functional modules are as follows: - Real-time status monitoring; - Operating parameter setting; - Battery management system equipment control.

Screenshots

MultiBMS4 screens
JK BMS4 screens

Verdict

The call

The clearest difference is price: JK BMS at Free against MultiBMS's $0.99. JK BMS also leads on in-app purchases (none vs 11) and rating (4.3 vs 4.0). MultiBMS's advantage is device support (4 vs 2). On review sentiment, ratings volume, update cadence and ads 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

JK BMS is free to download; MultiBMS costs $0.99 up front. MultiBMS sells 11 one-off in-app purchases. JK BMS asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

JK BMS holds the better App Store score, 4.3 against 4.0. Both are backed by a comparable volume of ratings — 4 and 7 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

MultiBMS ships an update every 4 days, JK BMS weekly. The most recent releases landed on October 13, 2026 and October 11, 2026 respectively.

Scorecard5 real differences · 5 level
MultiBMS versus JK BMS: the parameters behind the verdict, then further details
ParameterMultiBMSJK BMS
Price$0.99Free — better
Rating4.0 (4 ratings)4.3 (7 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings47 — better
Update frequencyEvery 4 days — betterWeekly
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size36 MB17 MB
Age rating4+4+
DeveloperSJP Custom Solutions LLC鹏 张

Customer experience

MultiBMS

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

JK BMS

All ratings7 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

11 purchases

MultiBMS

One-time11
  • E-Bike Rally$0.99
  • Bus Life$0.99
  • Off Grid$0.99
Show 8 more
  • Minimal White$0.99
  • Retro Terminal$0.99
  • Marine$0.99
  • Arctic Ice$0.99
  • Matrix Code$0.99
  • Emergency$0.99
  • CAT Equipment$0.99
  • Aviation$0.99
None

JK BMS

No in-app purchases

Questions

Is MultiBMS free?
MultiBMS costs $0.99, and also offers in-app purchases.
Is JK BMS free?
JK BMS is free to download, with no in-app purchases.
Which has better reviews, MultiBMS or JK BMS?
JK BMS is rated higher. MultiBMS averages 4.0 out of 5 from 4 ratings, while JK BMS averages 4.3 from 7 ratings.
Do MultiBMS or JK BMS have ads?
Neither MultiBMS nor JK BMS shows ads.
Which is updated more often, MultiBMS or JK BMS?
MultiBMS ships an update every 4 days, and JK BMS weekly. Most recently, MultiBMS was updated on October 13, 2026 and JK BMS on October 11, 2026.

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