OneNest is a mobile parenting application designed to consolidate multiple tools commonly used by parents into a single platform. Available on Google Play and the App Store, the app supports users across 175 countries and 49 languages, and integrates with over 120 retail partners. Its primary function is to help parents manage pregnancy tracking, baby registries, product discovery, milestone logging, community support, and access to wellness resources from a unified interface. The application includes several core features. A registry and gifting module allows users to build a baby registry using artificial intelligence, import products from any online store, track gifts, send automated thank-you notes, and set up group gifting or cash funds. A product discovery section provides curated staff picks, trending items, and verified reviews from other families. Pregnancy and baby tracking enables week-by-week pregnancy logging, as well as tracking of feeds, diapers, and hydration. Milestone tracking covers progress from pregnancy through preschool with stage-specific guidance. The community aspect offers moderated forums, expert question-and-answer sessions, and the ability to connect with other parents. Additionally, the app provides access to over 30 helplines covering mental health and breastfeeding support, along with breathing exercises, affirmations, and feeding guidance. Typical use cases involve a parent beginning the journey from a positive pregnancy test and using the app to monitor weekly developments, build a registry with products from multiple retailers, and share progress with a supporter page for friends and family. As the child grows, the parent continues to log milestones, participate in community groups, and use the wellness tools for support. The workflow is designed to replace the need for separate apps for each task, centralizing organization and information in one place. Technical requirements are limited to a compatible smartphone running Android or iOS, with the app available through standard app stores.