It is not possible to use Tibber Pulse and Equalizer at the same time.
Both the Equalizer and Tibber Pulse supports dynamic load balancing. The Equalizer also has phase balancing, which the Pulse does not.
This means that the Equalizer can tell the Easee chargers which phase has the lowest load on it. The Easee chargers can then easily balance their loads for charging, within the balancing that is taking place across the whole house.
The Equalizer is not currently a supported HAN device in the Tibber app. If you want to use the Equalizer with an app, you need to use the Easee app.