Comparison

BKmonitor vs AmpWidgets

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

Head to head
About

BKmonitor

Features
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BKmonitor seamlessly connects with supporting devices through Bluetooth technology, achieving real-time monitoring and accurate analysis of engine battery status. Compared with other products, it has unique interval settings, duration control, and timed collection functions, providing users with more comprehensive and detailed equipment performance analysis. Core features: Timed collection: Supports timed automatic collection of key data such as battery startup records and voltage fluctuations, without the need for manual operation. Bluetooth device connection: Easily connect your matching Bluetooth device to achieve real-time data transmission. Interval and duration settings: Users can set the interval and duration of data collection according to their needs, ensuring the accuracy and validity of the data. Custom device name: supports users to customize and modify the Bluetooth name of the device, facilitating device management and recognition. BKmonitor它通过蓝牙技术与配套设备无缝连接,实现了对发动机电池状态的实时监控与精准分析。与其他产品相比,拥有独特的区间设置、时长控制以及定时采集功能,可以一直插在车辆电池上为用户提供了更加全面、细致的设备性能分析。 核心功能: 定时采集:支持定时自动采集电池启动记录、电压波动等关键数据,无需手动操作。 蓝牙设备连接:轻松连接您的配套蓝牙设备,实现数据实时传输。 区间与时长设置:用户可根据需求设置数据采集的区间和时长,确保数据的准确性和有效性。 自定义设备名称:支持用户自定义修改设备蓝牙名称,方便设备管理与识别。

About

AmpWidgets

Monitor your Victron energy system in real-time with customizable widgets for your iPhone, iPad, Mac, and Apple Watch. View battery status, solar production, and more without opening the main app.

Highlights
  • Real-time battery and solar monitoring
  • Home Screen, Lock Screen, and StandBy widgets
  • macOS desktop and Notification Center widgets
  • Apple Watch complications
  • Customizable metric display
  • Light, Dark, and Auto appearance modes
  • Background data refresh
Features
Read full description

Never miss a thing with your Victron system. AmpWidgets brings powerful battery, solar, tank, sensor, and system monitoring to every screen you own. Check your most important Victron VRM data on your iPhone, iPad, Mac, and Apple Watch — without constantly opening the VRM app. WIDGETS EVERYWHERE • Home Screen widgets for quick system checks • Lock Screen widgets for instant battery and solar metrics • StandBy support for an always-visible display • macOS desktop and Notification Center widgets • Apple Watch complications for glanceable updates on your wrist • A resizable widget that shows one, three, or six metrics at a time SMART ALERTS Create custom rules for the moments that matter: • Battery below your chosen percentage • Current rising above or falling below a threshold • System or battery state changes • Any value that needs your attention AmpWidgets checks your rules automatically in the background and notifies you the moment something changes — with smart cooldowns so you're never spammed. COMPLETE VICTRON MONITORING See more of your system than ever before: • Battery state of charge, voltage, current, and power • Individual cell voltage highs and lows, plus pack balance for lithium banks • Consumed amp-hours and time-to-go • Solar power output, PV voltage, and today's / yesterday's yield • Charge cycles, charged and discharged energy, min/max voltage • Battery temperature, health details, and starter-battery data • Per-device readings for every shunt, BMS, and charger • System status and alarm summaries TANKS, SENSORS & SYSTEM STATES AmpWidgets supports more Victron data than ever, including: • Fresh, grey, fuel, and gas/LPG tank levels — with a combined level per fluid type • Distinct icons so water and gas tanks are instantly recognizable • Temperature, humidity, and pressure sensors, shown by their real device names • Shore- and generator-power detection via AC input voltage • AC input and output, DC loads, and EV charger data • System, battery, inverter, charger, and solar-charger states CUSTOMIZABLE TO YOUR NEEDS Build the monitoring setup that works for you: • Choose exactly which metrics to display • Use simple widgets for a single value, or expand them to show more • Set Light, Dark, or Auto appearance independently for each widget • Rename your devices so they make sense to you • View solar production trend charts • Switch between multiple installations from the dashboard • Try everything instantly with built-in Demo Mode — no account needed APPLE WATCH SUPPORT Keep your Victron system on your wrist: • View battery, solar, tank, and temperature data directly on Apple Watch • Add complications from the watch face gallery • Reliable independent background updates BUILT FOR OFF-GRID LIVING Whether you're in an RV, on a boat, at a cabin, or running a mobile power setup, AmpWidgets helps you stay informed without constantly checking your system manually. See at a glance if your batteries are charging, how much solar you're producing, whether your tanks need attention, and the instant something important changes. WORKS WITH YOUR VRM ACCOUNT AmpWidgets connects directly to your Victron VRM installation. Just enter your Installation ID and API token from vrm.victronenergy.com and you're ready to go. One app, every screen. Download AmpWidgets and take control of your power monitoring.

Screenshots

BKmonitor4 screens
AmpWidgets4 screens

Verdict

The call

The clearest difference is price: BKmonitor at Free against AmpWidgets's $0.99. BKmonitor also leads on iOS requirement (14.0 vs 18.4). On update cadence, ads, in-app purchases 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

BKmonitor is free to download; AmpWidgets costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on September 14, 2026 and September 11, 2026 respectively.

Scorecard2 real differences · 8 level
BKmonitor versus AmpWidgets: the parameters behind the verdict, then further details
ParameterBKmonitorAmpWidgets
PriceFree — better$0.99
Rating—5.0 (1 ratings) — better
Positive reviews—66.7% of reviews
Number of ratings—1 — better
Update frequencyEvery 2 weeksEvery 2 weeks
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, iPodiPhone, iPad, Mac, Apple Watch — better
Requires iOS14.0 — better18.4
Further details — not scored
Size8 MB12 MB
Age rating4+4+
Developer祖策 谢Northbound House LLC

In-app purchases

None

BKmonitor

No in-app purchases

None

AmpWidgets

No in-app purchases

Questions

Is BKmonitor free?
BKmonitor is free to download, with no in-app purchases.
Is AmpWidgets free?
AmpWidgets costs $0.99, with no in-app purchases.
Do BKmonitor or AmpWidgets have ads?
Neither BKmonitor nor AmpWidgets shows ads.
Which is updated more often, BKmonitor or AmpWidgets?
BKmonitor ships an update every 2 weeks, and AmpWidgets every 2 weeks. Most recently, BKmonitor was updated on September 14, 2026 and AmpWidgets on September 11, 2026.

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