Inviz.ai built a search relevancy platform using MongoDB Realm, which is an out-of-the-box data synchronization service that keeps data up-to-date between different users and devices. The platform was developed to address connectivity challenges faced by human judges in a crowd-sourced data labeling solution, where raw data gets distributed to human judges to get annotated. To solve this issue, Inviz.ai stored judgements locally on the judge's device and synced the data with the backend system whenever there was a strong enough network connection. The platform used MongoDB Realm's real-time data sync at its center, allowing for seamless synchronization of data between devices and cloud servers.