Show HN: Where", an E2EE realtime location sharing app

Category: other

Tags: location-sharing, end-to-end-encryption, kotlin-multiplatform

Score: 6.5/10 (Innovation: 6, Technical: 7, Documentation: 7, Utility: 6)

Where is a cross-platform, end-to-end encrypted real-time location sharing app built with Kotlin Multiplatform. It introduces a compelling privacy model with no accounts, ephemeral X25519 keys, Double Ratchet encryption, and minimal server-side data, making it a forward-thinking alternative to mainstream location sharing services. The project is well-structured with a Ktor server, CLI tool, and thorough protocol documentation, though it is still in early beta with limited adoption.

Target audience: privacy-conscious users, mobile app developers

Repository: https://where.af0.net/ · Kotlin · MIT

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