SmartHomeShop App
Not yet available for WallSense. WallSense is not yet in the SmartHomeShop app. App support will follow.
The app needs cloud firmware, and that does not exist yet for WallSense. The current firmware is a local WiFi test build.
How the App Works
For supported products, the app needs an account, internet and matching cloud firmware. Home Assistant is not required for the app. With supported firmware you can use both together. Features and history depend on the model, firmware and subscription.
What the app will show for WallSense is announced when support follows. The SmartHomeShop App guide explains the app for other SmartHomeShop products.
What You Can Do Today
Use WallSense locally with Home Assistant. See Home Assistant Integration.