Comparison

JK BMS vs BMS Pal

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

Head to head
About

JK BMS

This application connects to battery management systems via Bluetooth to monitor and control active equalizers. It allows users to view real-time status and adjust operating parameters for battery management equipment.

Highlights
  • Bluetooth connectivity
  • Real-time status monitoring
  • Operating parameter setting
  • Battery management equipment control
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.

About

BMS Pal

Consolidate data from various battery management systems into a single, live list. Monitor state of charge, voltage, current, and more with detailed per-cell views and historical charts. Offers advanced features like capacity testing and AI-powered sanity checks for your battery packs.

Highlights
  • Live telemetry from multiple BMS
  • Per-cell voltage and balancing indicators
  • Protection alerts in plain language
  • Group packs for combined readings
  • Capacity test and history logging
  • Chemistry detection and override
  • AI-powered sanity checks
Features
Read full description

All your batteries. One app. A JBD pack in the garage, a Victron in the van, a power station on the table - and a different vendor app for each one. BMS Pal ends the app-hopping: every pack you own in one live list, with state of charge, voltage, current, watts, and time remaining. Device detail pages have tools for a deep dive into your devices. Up to eight connected at once. EIGHT FAMILIES AT LAUNCH BMS boards get the deep treatment - per-cell voltages with live balancing indicators, protection alerts, chemistry detection, configuration reads, and confirmation-gated FET control: - JBD (including XiaoXiang and legacy variants) - JK - Daly Battery monitors and power stations get their essentials, with the same charts and history: - Victron (including encrypted advertising) - Junctek KL-F shunt monitors - Bluetti, Jackery, and EcoFlow power stations Coverage varies by family - the full who-reports-what table is at bmspal.app. WHAT IT DOES - Live telemetry: voltage, current, power, temperature, and state of charge stream in as your BMS reports them. Charts hold the last week, so you can see what happened while you slept. - Per-cell detail: every cell gets its own bar, down to the millivolt. Cells the BMS is balancing light up, so you can watch the spread tighten in real time. - Alerts, plainly stated: protection events appear in plain language. No sirens, no red flashing. Just the facts. - Groups: packs that work as one bank read as one battery. Group them series, parallel, or series-parallel and get combined voltage, current, and state of charge. - Capacity tests: run a real discharge test on any pack that reports current. BMS Pal integrates it over time against your cutoff and files the result in the pack's history, so "how many amp-hours, really?" gets a measured answer. - Chemistry detection: BMS Pal reads your protection thresholds and works out whether the pack is LiFePO4 or Li-ion. You can override it - you know your pack best. - Sanity Checks: not sure those numbers are fine? Send a snapshot of your pack for an AI review across six dimensions and get a written verdict back - findings graded by severity, with the reasoning and trade-offs spelled out. You see exactly what is sent before anything leaves your phone, and nothing is sent until you tap. BMS boards only, where the setup can actually be changed. - Write mode, off by default: toggling charge or discharge FETs is serious business on a high-energy pack. Writes sit behind a master switch plus a per-command confirmation, and every attempt is logged. LOCAL-FIRST. ACTUALLY LOCAL. No account, ever. No analytics, no trackers, no background traffic. Your telemetry history lives on your device; delete the app and it is gone. The only network calls are the ones you explicitly ask for (a Sanity Check or a problem report), and you see the exact payload first. THE DEAL Free download, and everything works for 7 days - every protocol, every feature, no card up front. Then $5 unlocks it for good: one purchase, no subscription, no "premium tier" holding features hostage. Sanity Checks run in the cloud and cost real server money, so the app includes 25 and $2 adds 25 more. Everything else runs entirely on your device. ONE DEVELOPER, ONE BENCH Every supported family sits on my bench: 92 wire-protocol variants documented, 1,100+ automated tests in the suite. Got a pack that will not identify, a value that reads wrong, or a feature idea? Report a Problem, Confirm Device Support, and Send Feedback are built in, replies land in your Support inbox, and none of it is ever paywalled. Your reports steer the roadmap. Runs on iPhone, iPad, and Apple Silicon Macs. JBD, XiaoXiang, JK, Daly, Victron, Junctek, Bluetti, Jackery, and EcoFlow are trademarks of their respective owners. BMS Pal is an independent project, not affiliated with or endorsed by any battery vendor. BMS Pal shows you what your BMS reports; it is not a substitute for proper fusing, wiring, and common sense.

Screenshots

JK BMS4 screens
BMS Pal4 screens

Verdict

The call

The clearest difference is rating: BMS Pal at 5.0 against JK BMS's 4.1. BMS Pal also leads on review sentiment (100% vs 75%). JK BMS's advantage is in-app purchases (none vs 2) and ratings volume (8 vs 1). On price, update cadence, 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 Pal sells 2 one-off in-app purchases. JK BMS asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

BMS Pal holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: JK BMS has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 75% of JK BMS's written reviews are positive against 100% of BMS Pal's.

UpkeepUpdate frequency

JK BMS ships an update weekly, BMS Pal every 5 days. The most recent releases landed on November 10, 2026 and November 6, 2026 respectively.

Scorecard6 real differences · 4 level
JK BMS versus BMS Pal: the parameters behind the verdict, then further details
ParameterJK BMSBMS Pal
PriceFreeFree
Rating4.1 (8 ratings)5.0 (1 ratings) — better
Positive reviews75.0% of reviews100.0% of reviews — better
Number of ratings8 — better1
Update frequencyWeeklyEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.6 — better26.2
Further details — not scored
Size15 MB25 MB
Age rating4+4+
Developer鹏 张Inquiring Minds, Inc

Customer experience

JK BMS

All ratings8 ratings
Positive75.0%
Neutral12.5%
Negative12.5%
Written reviews4 reviews
Positive75.0%
Neutral25.0%
Negative0.0%

BMS Pal

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

JK BMS

No in-app purchases

2 purchases

BMS Pal

One-time2
  • 25 Additional Sanity Checks$2.00
  • BMS Pal Unlock (Lifetime)$5.00

Questions

Is JK BMS free?
JK BMS is free to download, with no in-app purchases.
Is BMS Pal free?
BMS Pal is free to download, with in-app purchases available.
Which has better reviews, JK BMS or BMS Pal?
BMS Pal is rated higher. JK BMS averages 4.1 out of 5 from 8 ratings, while BMS Pal averages 5.0 from 1 ratings.
Do JK BMS or BMS Pal have ads?
Neither JK BMS nor BMS Pal shows ads.
Which is updated more often, JK BMS or BMS Pal?
JK BMS ships an update weekly, and BMS Pal every 5 days. Most recently, JK BMS was updated on November 10, 2026 and BMS Pal on November 6, 2026.

Other comparisons