A few months ago, working @Previando, a social network that connects groups of friends, I needed to speed-up the search of the groups. So the first step was, what to use to speed-up the search?I had two options: Algolia and ElasticSearch. I had used Algolia in an e-commerce application, it is a very good product and here are some points to take into account: Advantages: Multiple back-end SDKs to m