WattWächter

Content rating
Everyone
1K+
Downloads
Content rating
Everyone
Learn more
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

The WattWächter app is used to set up and operate the WattWächter Plus device for reading digital electricity meters.

With the app, WattWächter Plus devices can be configured, connected to the local Wi-Fi network, and used to follow your electricity use — live, over time, and in euros. Communication takes place locally via Bluetooth and the home network.

Note:
This app works exclusively in combination with a WattWächter Plus hardware device.

Features at a glance:
- Setup of the WattWächter device via Bluetooth
- Connection of the device to the local Wi-Fi network
- Live view of current power draw and feed-in
- Consumption in kWh for today, the current month and the current year
- Costs based on your own tariff: energy price, base fee and feed-in compensation
- History for day, week, month and year — swipe between periods, open any chart full screen
- Clear and structured presentation of measurement values
- Several meters in one app, switch between them at any time
- Status and diagnostic information
- Export of diagnostic data to support customer service
- Guided tour with a demo meter, so the app can be explored before the device arrives
- Available in German, English, Spanish, French, Italian and Dutch, in light and dark mode

The app processes measurement and device data locally. Optionally, data can be synced to the cloud for remote access; an account is only required for that.
Companion app for the WattWächter Plus reading head for electricity meters
Updated on
Sep 11, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Personal info, App info and performance, and Device or other IDs
  • Data is encrypted in transit

What’s new

• The year view in Costs and Consumption now works without a cloud connection — the card used to be missing for meters set up locally only
• Guided tour: the Costs and Consumption tabs open instantly instead of after several seconds
• Setting up several devices: a failed cloud pairing is now retried automatically
• Smaller fixes
Content rating
Everyone
Learn more

App support

About the developer
SmartCircuits GmbH
support@smartcircuits.de
Pletschmühlenweg 45 50259 Pulheim Germany
+49 176 27118085