I have a Starter plan with plenty of room for more than one website. Can I have 2 websites sharing one Starter plan? If so, how do I do that?
To do that you need to store all your indices under the same app (same APP_ID).
We usually recommend to prefix the indices in a way that you can recognise them:
website1_index_name, website2_index_name, …
You can have a look at https://www.algolia.com/doc/guides/security/multiple-environments/#all-environments-on-the-same-application for more details.