BMS Tool vs Battery Pack Assistant
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
Battery Pack Assistant
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This app is to be used to scan QR code shipped together with the battery pack.
Screenshots
Verdict
The clearest difference is in-app purchases: Battery Pack Assistant at none against BMS Tool's 1. Battery Pack Assistant also leads on ads (none vs shown) and iOS requirement (9.0 vs 16.0). BMS Tool's advantage is update cadence (every 6 weeks vs every 5 months). On price 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
Both are free to download. BMS Tool sells 1 one-off in-app purchase. Battery Pack Assistant asks for nothing beyond the download.
BMS Tool ships an update every 6 weeks, Battery Pack Assistant every 5 months. The most recent releases landed on November 11, 2026 and November 7, 2026 respectively.
| Parameter | BMS Tool | Battery Pack Assistant |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (8 ratings) — better | — |
| Positive reviews | 71.4% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 6 weeks — better | Every 5 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPod |
| Requires iOS | 16.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 21 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | e77code GmbH | Anhui Udan Technology Co., Ltd. |
In-app purchases
BMS Tool
- Remove Ads$3.99
Battery Pack Assistant
No in-app purchases
Questions
Is BMS Tool free?
Is Battery Pack Assistant free?
Do BMS Tool or Battery Pack Assistant have ads?
Which is updated more often, BMS Tool or Battery Pack Assistant?
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