I am developing an iOS app with Realm and MongoDB Atlas. I never used Atlas before so this is a very interesting learning process. Atlas has a huge learning curve, and i am thankful i figure out everything via youtube and ChatGPT.

What is the difference between MongoDB Atlas and Realm Sync? The following tutorial shows using documents to do CRUD operations, this makes sense to me. https://www.mongodb.com/docs/atlas/device-sdks/sdk/swift/app-services/mongodb-remote-access/