In-house · Soft AI Labs

Simple Life

A personal vault for cards, passwords and documents with zero-knowledge encryption. Everything is encrypted on the device, so the server only ever stores ciphertext.

Client: Own product
When: 2025
Status: OfflineNot currently hosted
Role: Designed and built end to end: mobile app, web app, API and hosting.
Built with: React NativeExpoReactTypeScriptExpressPrismaPostgreSQLDockerAWS EC2
Service: Mobile apps

What was built

AES-256-GCM encryption with PBKDF2 key derivation, entirely on the client.
Master-key recovery, and automatic migration of existing data off the legacy encryption scheme.
React Native and React clients on one Express and Prisma API, self-hosted with Docker on AWS EC2.

Soft AI Labs

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