MadeByAgents partnered with JAN3 LLC’s A1 Lab to develop Echos, a completely free, on-device AI transcription app. The project served a dual purpose: to serve as a marketing vehicle for JAN3’s flagship Aqua Bitcoin wallet, and to stress-test the absolute limits of modern AI app development. Operating under a strict constraint to write zero lines of human code, we successfully utilized AI agents to architect, build, and deploy a secure, natively running mobile application for both iOS and Android.
2 Weeks
Time to MVP
0 Lines (100% built via AI agents like Claude)
Human-Written Code
100% On-Device Processing (Zero Server Connectivity)
Privacy Level
Direct funnel established for the Aqua Wallet
User Acquisition
Blockchain Technology
3 months
Lead Developer

A1 Lab needed a highly capable, private alternative to cloud-dependent transcription apps. Beyond user privacy, the client had two primary objectives. First, they wanted to test the viability of using AI agents for end-to-end mobile app development. Second, they wanted to leverage the resulting free app to cross-promote their main product, the Aqua Bitcoin wallet.
* No manual coding; the entire codebase must be generated using AI agents.
To strictly adhere to the "no human coding" constraint while managing a complex build, I broke the project down into hyper-specific tasks for Claude and architected the app in strictly defined layers.
Architecture Diagram (Conceptual): User Audio ➔ Platform-Specific Background Audio Service ➔ Local VAD ➔ Throttled On-Device Whisper Model ➔ Zustand State ➔ Encrypted Local File System