Comparison

Energy Meter vs E

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

Head to head
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.

About

E

Control your e-bike's electronic shifting system with this app. It synchronizes drive and shifting for fast, efficient gear changes, offering features like auto-downshift and multi-shift. Customize settings and access service functions for your e-bike.

Highlights
  • eShift with Bosch Smart System
  • Synchronized drive and shifting
  • Auto-Downshift customization
  • Invertable shifting direction
  • Multishift control
  • Service functions (calibration, diagnostics, updates)
Features
Read full description

Die elektronische Schaltansteuerung Rohloff „E-14 2.0“ kann mit der Neuen APP E-14 2.0 bei eBikes mit dem Bosch Smart System zum Einsatz kommen. Beim Bosch Smart kann nun erstmalig eShift zusammen mit ABS-System kombiniert werden. Antrieb und Schaltung kommunizieren miteinander und synchronisieren den Schaltvorgang. Das Ergebnis: ein leichtes, sehr schnelles und effizientes Schalten mit zusätzlichen Komfortfunktionen wie Auto-Downshift und Multishift. Als Ergänzung zu allen E-Bikes mit leistungsstarken Mittelmotoren ist die Rohloff SPEEDHUB als einziger dauerhaltbarer Fahrradantrieb ideal. Mit der neuen Rohloff APP E-14 2.0 für iOS, können individuelle Einstellungen vorgenommen und Servicefunktionen genutzt werden: • Auto-Downshift (Gang 4 bis 9) einstellbar, • Schaltung invertieren / Schaltrichtung (+/-) kann geändert werden, • Multishift deaktivierbar, • Servicefunktionen sind direkt online verknüpft (Feineinstellung/Kalibrierung der E14, Fehlerdiagnose, Softwareupdate, Handbuch).

Screenshots

Energy Meter4 screens
E3 screens

Verdict

The call

The clearest difference is review sentiment: Energy Meter at 86% against E's 25%. E's advantage is price (Free vs $3.99). 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

E is free to download; Energy Meter costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Energy Meter ships an update every 6 months, E every 8 months. The most recent releases landed on September 25, 2026 and July 8, 2026 respectively.

Scorecard3 real differences · 7 level
Energy Meter versus E: the parameters behind the verdict, then further details
ParameterEnergy MeterE
Price$3.99Free — better
Rating—4.0 (1 ratings) — better
Positive reviews86.3% of reviews — better25.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 6 months — betterEvery 8 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size7 MB14 MB
Age rating4+17+
DeveloperHeiko PruessingRohloff AG

Customer experience

Energy Meter

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

E

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews16 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

In-app purchases

None

Energy Meter

No in-app purchases

None

E

No in-app purchases

Questions

Is Energy Meter free?
Energy Meter costs $3.99, with no in-app purchases.
Is E free?
E is free to download, with no in-app purchases.
Do Energy Meter or E have ads?
Neither Energy Meter nor E shows ads.
Which is updated more often, Energy Meter or E?
Energy Meter ships an update every 6 months, and E every 8 months. Most recently, Energy Meter was updated on September 25, 2026 and E on July 8, 2026.

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