Comparison

ModbusV vs Energy Meter

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

Head to head
About

ModbusV

This utility tool facilitates the conversion of Modbus and DirectNet V addresses. It is designed for users who need to translate between these two industrial communication protocols.

Highlights
  • Modbus address conversion
  • DirectNet V address conversion
  • Industrial communication protocol translation
  • Utility tool
Features
Read full description

A utility tool for Modbus and DirectNet V address conversion.

About

Energy Meter

Monitor your SMA solar plant and identify energy wasters with real-time data. Connect locally to your PV system for instant insights into power grid performance and individual device readings.

Highlights
  • Monitor SMA Energy Meter real-time data
  • Supports SMA inverters via MODBUS
  • Automatic local network device detection
  • Energy flow display
  • Consumption measurement
  • Individual phase view
  • Collect values into charts
Features
Read full description

Monitor and discover real-time data of your SMA solar photovoltaic plant or locate secret power wasters in your home. Individual SMA sensors or inverters can be examined directly (see below list of supported devices). The app communicates locally with the solar system without a cloud. This means that real-time measured data are available at lightning speed and changes of power values are detected immediately. Discover and explore your photovoltaic system and keep track of your power grid! Connect your iPhone or iPad to the same network (WiFi) as your PV plant and get a deep insight of your power grid. The app works best with self-consumption plants (plants with Sunny Home Manager devices). The focus of the app is to monitor real-time data values. Long-term recordings are currently not possible (apart from the grid consumption measurements). ** Features ** * Monitor SMA Energy Meter real-time data * Supports SMA inverters (via MODBUS protocol only!) * Automatically finds and detects SMA devices and sensors on the local network * Energy flow display of your solar plant (self-consumption plant) at the grid connection point * Measurement of consumption values (grid consumption measurement) * Separate view of individual phases (L1, L2, L3) via Energy Meter sensors * Collecting values into charts * Detailed measured value view for each individual SMA device/sensor * Use the app to detect und jump onto the web interface of the inverter device ** Supported SMA Sensors and Inverters ** * SMA Energy Meter 1.0 + 2.0 (via Speedwire protocol) * SMA Sunny Home Manager 2.0 (supports only the build-in Energy Meter!) * SMA Sunny Boy Storage 3.7, 3.8, 5.0, 6.0 (via MODBUS) * SMA Sunny Island Storage 3.0, 4.4, 6.0, 8.0 (via MODBUS) * SMA Sunny Tripower 8.0 - 10.0 (via MODBUS) * SMA Sunny Tripower Smart Energy (Hybrid, via MODBUS) ** NOT supported devices ** * SMA Sunny Home Manager 1.0 (HM-10) Hint: Manual activation of the MODBUS protocol is required for communication with SMA inverters in the device settings. For this you need installer rights of your inverters! We are looking forward to your feedback or questions to feedback@heiko-pruessing.de! P.S.: If you like this app, please support us with a short review in the App Store or write us via App contact from within the app! SMA and Sunny Boy are registered Trademarks of SMA Solar Technology AG. Modbus is a registered Trademark of SCHNEIDER ELECTRIC USA, INC.

Screenshots

ModbusV4 screens
Energy Meter4 screens

Verdict

The call

The clearest difference is price: ModbusV at Free against Energy Meter's $3.99. ModbusV also leads on review sentiment (100% vs 86%) and iOS requirement (12.2 vs 15.0). Energy Meter's advantage is in-app purchases (none vs 2) and update cadence (every 6 months vs every 17 months). On 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

ModbusV is free to download; Energy Meter costs $3.99 up front. ModbusV sells 2 in-app purchases, starting at $0.49 per month. Energy Meter asks for nothing beyond the download.

UpkeepUpdate frequency

ModbusV ships an update every 17 months, Energy Meter every 6 months. The most recent releases landed on October 1, 2026 and October 16, 2026 respectively.

Scorecard6 real differences · 4 level
ModbusV versus Energy Meter: the parameters behind the verdict, then further details
ParameterModbusVEnergy Meter
PriceFree — better$3.99
Rating1.0 (1 ratings) — better—
Positive reviews100.0% of reviews — better86.3% of reviews
Number of ratings1 — better—
Update frequencyEvery 17 monthsEvery 6 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.2 — better15.0
Further details — not scored
Size108 MB7 MB
Age rating4+4+
DeveloperChai KunnasitHeiko Pruessing

Customer experience

ModbusV

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Energy Meter

Written reviews51 reviews
Positive86.3%
Neutral3.9%
Negative9.8%

In-app purchases

2 purchases

ModbusV

Subscriptions2
  • Premium - 1 Month$0.491 Month
  • Premium - 1 Year$3.991 Year
None

Energy Meter

No in-app purchases

Questions

Is ModbusV free?
ModbusV is free to download, with in-app purchases available.
Is Energy Meter free?
Energy Meter costs $3.99, with no in-app purchases.
Do ModbusV or Energy Meter have ads?
Neither ModbusV nor Energy Meter shows ads.
Which is updated more often, ModbusV or Energy Meter?
ModbusV ships an update every 17 months, and Energy Meter every 6 months. Most recently, ModbusV was updated on October 1, 2026 and Energy Meter on October 16, 2026.

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