Comparison

AmpWidgets vs VMH Flex Marine

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

Head to head
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.

About

VMH Flex Marine

This compact device displays extensive boat data, customizable across multiple screens. Easily set up alarms and access information via a smartphone app, even with gloves or in wet conditions.

Highlights
  • Compact and powerful display
  • Customizable data screens
  • Laser touch button for navigation
  • Smartphone setup and control
  • Reads from sensors and CAN
  • LIN connectivity for battery data
Read full description

THE VMH FLEX Tiny device / endless possibilities Small but powerful, the VMH Flex is the perfect compromise to display a large amount of boat data in a compact device. No matter if you are wearing gloves or if it is raining on your deck, the innovative laser touch button allows you to scroll up to 5 different screens. Every screen can be freely customized with your most important information, and the setup – including alarms – is easily done with your smartphone just with a »tap«. Capable of reading from both sensors and CAN the VMH Flex is further empowered by the LIN connectivity to get all the information from your battery thanks to the Intelligent Battery Sensor.

Screenshots

AmpWidgets4 screens
VMH Flex Marine4 screens

Verdict

The call

The clearest difference is price: VMH Flex Marine at Free against AmpWidgets's $0.99. VMH Flex Marine also leads on iOS requirement (15.0 vs 18.4). AmpWidgets's advantage is rating (5.0 vs 1.0) and update cadence (every 3 weeks vs every 3 months). On ratings volume, ads and in-app purchases 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

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

ReceptionRating · Positive reviews · Number of ratings

AmpWidgets holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

AmpWidgets ships an update every 3 weeks, VMH Flex Marine every 3 months. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

Scorecard6 real differences · 4 level
AmpWidgets versus VMH Flex Marine: the parameters behind the verdict, then further details
ParameterAmpWidgetsVMH Flex Marine
Price$0.99Free — better
Rating5.0 (1 ratings) — better1.0 (1 ratings)
Positive reviews66.7% of reviews—
Number of ratings11
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, Mac, Apple Watch — betteriPhone, iPod
Requires iOS18.415.0 — better
Further details — not scored
Size8 MB3 MB
Age rating4+4+
DeveloperNorthbound House LLCVeratron AG

In-app purchases

None

AmpWidgets

No in-app purchases

None

VMH Flex Marine

No in-app purchases

Questions

Is AmpWidgets free?
AmpWidgets costs $0.99, with no in-app purchases.
Is VMH Flex Marine free?
VMH Flex Marine is free to download, with no in-app purchases.
Which has better reviews, AmpWidgets or VMH Flex Marine?
AmpWidgets is rated higher. AmpWidgets averages 5.0 out of 5 from 1 ratings, while VMH Flex Marine averages 1.0 from 1 ratings.
Do AmpWidgets or VMH Flex Marine have ads?
Neither AmpWidgets nor VMH Flex Marine shows ads.
Which is updated more often, AmpWidgets or VMH Flex Marine?
AmpWidgets ships an update every 3 weeks, and VMH Flex Marine every 3 months. Most recently, AmpWidgets was updated on November 6, 2026 and VMH Flex Marine on October 30, 2026.

Other comparisons