# MultiBMS — All your batteries. One view.

> Monitor and manage multiple Bluetooth battery systems in one app. (iPhone/iPad app by stefan peters.)

- Source: https://appshunter.io/ios/app/multibms/id6771097913 (this page in markdown: same URL + `.md`)
- Developer: [stefan peters](https://appshunter.io/developer/1874328616)
- Category: Utilities, Productivity
- Price: $0.99 with in-app purchases
- Rating: 3.70/5 from 3 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 25 MB
- Languages: American English
- Released: 2026-05-29
- Data updated: 2026-08-25
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/multibms/id6771097913/reviews.md

## What is MultiBMS?

MultiBMS connects your iPhone to Bluetooth-enabled battery management systems and shows what your batteries are doing—pack voltage, individual cell voltages, current, power, state of charge, temperature, balancing activity, capacity, and history—in one clean app.

MONITOR EVERY BATTERY
Connect to multiple compatible BMS devices simultaneously. Open any individual pack for detailed diagnostics, cell health, balancing status, temperature, current, capacity, and recent history.

BUILD BATTERY GROUPS
Combine packs into parallel or series groups. Group dashboards use signed net current and power, so a bank with one charging pack and one discharging pack reports what the whole system is actually doing. You retain full access to every member battery and cell.

APPLE WATCH BATTERY MONITOR & RIDE RECORDING
The included Apple Watch companion opens as a focused battery monitor and can also combine live BMS telemetry with Watch GPS and motion data for e-bikes, scooters, ATVs, karts, boats, and custom activities. View live packs, groups, cells, voltage, current, power, state of charge, speed, distance, G-force, temperature, laps, and battery health from your wrist. The iPhone must remain connected to the BMS for live electrical telemetry.

SKINS THAT CHANGE THE COCKPIT
Four styles are included. Optional one-time cosmetic skin purchases add distinctive visual designs for bus life, off-grid, industrial, emergency, marine, aviation, terminal, arctic, matrix, minimal, and e-bike systems. Every item includes readable Dashboard, Group, and Battery previews before purchase. Core monitoring features and BMS protocols do not require a skin purchase.

COMPATIBILITY
JiKong and JBD/Xiaoxiang hardware have been tested directly by the developer. Twenty additional implemented protocol families are labeled BETA because battery models and firmware vary and broader hardware verification is still underway.

BUILT BY A HOBBYIST, FOR HOBBYISTS
MultiBMS is an independent passion project for builders, riders, racers, RV and solar owners, and anyone managing more than one battery. Suggestions, unusual hardware reports, and thoughtful bug reports are welcome at support@multibms.com.

PRIVACY
Battery monitoring works offline, requires no account, contains no advertising or analytics, and does not upload battery telemetry to a MultiBMS server. Apple processes optional skin purchases. Privacy policy: https://multibms.com/privacy/

MultiBMS is independent and is not affiliated with, endorsed by, or sponsored by any battery-management-system manufacturer. Third-party names identify hardware compatibility and remain trademarks of their respective owners.

## Key features

- 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

## Pricing and in-app purchases

Base price: $0.99.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| E-Bike Rally | $0.99 | one-time |
| Bus Life | $0.99 | one-time |
| Off Grid | $0.99 | one-time |
| Minimal White | $0.99 | one-time |
| Retro Terminal | $0.99 | one-time |
| Marine | $0.99 | one-time |
| Arctic Ice | $0.99 | one-time |
| Matrix Code | $0.99 | one-time |
| Emergency | $0.99 | one-time |
| CAT Equipment | $0.99 | one-time |
| Aviation | $0.99 | one-time |


## Chart rankings

- #170 in Top Paid · Utilities (US App Store)

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/multibms/id6771097913/reviews.md

### 5/5 — Excellent

*2026-07-28*

Love this app perfect

## Frequently asked questions about MultiBMS

### What is MultiBMS?

MultiBMS is a utility app that connects to Bluetooth-enabled battery management systems (BMS) to provide a unified view of your battery data. It allows you to monitor pack voltage, cell voltages, current, power, state of charge, and temperature for multiple batteries simultaneously.

### Does MultiBMS have ads?

No, MultiBMS does not contain any advertising. The app is designed to provide a clean and uninterrupted user experience for monitoring your battery systems.

### What hardware does MultiBMS support?

MultiBMS includes support for multiple common BMS protocols, with JiKong and JBD/Xiaoxiang hardware being directly tested. Other protocols are marked BETA as verification is ongoing.

### Can I group batteries with MultiBMS?

Yes, you can build custom parallel or series battery groups within MultiBMS. Group dashboards combine data from individual packs into a clear bank-level view while retaining access to each battery's details.

### Is MultiBMS available on Apple Watch?

MultiBMS includes an Apple Watch companion preview that demonstrates features like Fleet, Cells, alert thresholds, and Race Mode. Live iPhone-to-Watch BMS synchronization is planned for a future update.

### How much does MultiBMS cost?

MultiBMS is a paid application, priced at $0.99. This one-time purchase grants access to all current and future features without additional costs or subscriptions.

### How often is MultiBMS updated?

The latest version of MultiBMS is 1.0.3, last updated on July 25, 2026. The app is actively developed with user feedback incorporated, suggesting regular updates to improve functionality and add features.

### What is the age rating for MultiBMS?

MultiBMS has an age rating of 4+. This indicates that the content is generally suitable for all ages, with minimal or no objectionable content.

## Version history (last 5 releases)

### 1.0.8 — 2026-08-06

This update focuses on real-world battery monitoring, Apple Watch reliability, and multi-pack systems.

• Apple Watch now opens as a battery monitor first, with ride screens available when you want them.
• Watch telemetry uses live iPhone-connected BMS/group data instead of placeholder values.
• Improved group charging/discharging math for mixed pack states using net current and power.
• Added ANT BMS connection improvements, including support for custom device names and multiple ANT units.
• Added RX heartbeat diagnostics so testers can see whether live packets are arriving.
• Added support groundwork and compatibility notes for Victron RV Bluetooth requests where available public protocol access permits it.
• Fixed build/export metadata so the iPhone and Watch companion use the same build number.
• Added no non-exempt encryption metadata so App Store Connect should no longer ask the encryption question every upload.
• Improved Bus Life skin work and safeguards for one-pack and larger multi-pack layouts.
• General Bluetooth, Watch sync, Skin Store, and stability cleanup.

### 1.0.7 — 2026-08-05

Build 38 makes mixed battery banks and the Skin Store substantially better.

• Parallel and series groups now use signed net current and power. When one pack charges while another discharges, the group status, value, color, animation direction, and Apple Watch display all follow the bank's actual net flow.
• Near-zero current now settles to Idle instead of flickering between charge and discharge.
• Every Skin Store item now shows readable Dashboard, Group, and Battery previews instead of generic lines and dots.
• Store cards and full previews share the same renderer, so the preview cannot drift away from the purchased appearance.
• All 15 styles have distinct visual chrome, including Bus Life, Off Grid, Industrial Gold, Emergency, Marine, Aviation, Retro Terminal, Arctic Ice, Matrix Code, Minimal White, and E-Bike Rally.
• Apple Watch battery monitoring keeps the selected source pinned, transitions more smoothly between packs, and uses only current live telemetry—never preview values.
• Compatibility and privacy wording is clearer, including optional one-time cosmetic skin purchases.

### 1.0.6 — 2026-08-02

MultiBMS 1.0.6 makes the Apple Watch companion fully live and dependable. Watch screens now use the currently selected battery or group, reject stale telemetry, and stay consistent with the iPhone. Use Battery Monitor mode without a ride profile, or configure activity profiles for GPS speed and top speed, distance and efficiency, G-force, laps, BMS temperature, cell health, and alerts. This release also refreshes every Watch screen, improves Bluetooth recovery and switching between saved BMS devices, expands protocol support, and fixes startup stability.

### 1.0.5 — 2026-07-29

A completely upgraded Apple Watch experience is here. Record rides directly from every Watch screen while viewing live voltage, current, power, state of charge, GPS speed, G-force, temperature, and elevation. New live curves synchronize current, speed, and G-force, while the session screen tracks top speed and peak G. On iPhone, choose which channels to record, review saved sessions, compare electrical and ride data on smooth multi-line graphs, and scrub through the complete timeline. This update also improves pack-detail layouts, group icons, multi-pack cell identity, stability, and App Store compatibility.

### 1.0.4 — 2026-07-27

Apple Watch is now live. Choose Ride Profiles, batteries, Watch pages, BMS-temperature and voltage alerts, and Race/Ride metrics, then view live telemetry relayed securely from your paired iPhone.

Race and Ride sessions now include detailed session and per-lap voltage drop, lowest voltage, peak current and power, temperature, weakest-cell, cell delta, and energy metrics.

This update also adds reusable profiles for e-bikes, scooters, ATVs, karts, boats, and custom builds; current-responsive charging and discharging visuals; a clearer Watch setup path in Settings; expanded BMS protocol support; and improved ANT compatibility.

MultiBMS is built by a hobbyist for hobbyists. Bug reports and feature requests are always welcome at support@multibms.com.

## More apps by stefan peters

- [DriftOff — Sleep Sounds](https://appshunter.io/ios/app/driftoff-sleep-sounds/id6760260840)
- [IronFast — Fasting Timer](https://appshunter.io/ios/app/ironfast-fasting-timer/id6760272706)
- [Ennead](https://appshunter.io/ios/app/ennead/id6773568684)
- [Move Prep](https://appshunter.io/ios/app/move-prep/id6774272555)
- [TrailDash Hiking](https://appshunter.io/ios/app/traildash-hiking/id6788043651)

All apps by stefan peters: https://appshunter.io/developer/1874328616

## Related topics

[jbd bms](https://appshunter.io/ios/topics/jbd-bms)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*