Where is the Concordance in Equipd 3.0?
Rest assured it is still here. It has just moved to a more logical place - inside the Bible Window.
On an iPad
Open the Bible window and look for the search button, with a magnifying glass on it.
On an iPhone
If you are in Single Language mode then you should see a Search icon top/left.
If you are using Multiple Languages in your Bible then click on “Options” above the English verses and then “Search Bible Index” - as shown in the screenshots below.