To see the Conversio reviews in Searchanise widgets and filter by them you'll need to enable the Conversio integration in the Searchanise admin panel.
1. Go to Searchanise admin panel -> Integrations -> Product reviews.
2. Set the toggle for Conversio to On.
3. Insert the Conversio API key to the corresponding field.
The Conversio API key can be found in the Account section of the Conversio admin panel.
4. Click Apply changes.
! Please remember to re-index your store after the applied changes. Find the Force re-indexation button in the Dashboard section of the Searchanise admin panel.
After that you'll see review stars and the number of Conversio reviews in Searchanise widgets and you'll be able to filter by reviews as well.