I Built a Personal AI That Remembers Everything I Type

Divyaraj Kush — Fri, 02 Oct 2026 15:23:42 +0000

What if your keyboard remembered everything — every conversation, every mood — and your AI talked back like you? I built exactly that: an Android app with a system-level AI keyboard where everything I type flows to an AI backend, gets stored via RAG, and becomes memory I can ask about any time.

The Idea: An AI That Lives in My Phone
I am Divyaraj Kush — I have been building apps and doing digital marketing since my school days. One idea kept coming back to me: what if there was an AI that stays special to my phone — one that remembers my conversations and knows me?

The story I designed around was simple. Whatever I type through the keyboard, whichever conversations I have — all of it goes to my AI in the backend, stored through RAG. It keeps information about me, about my talks, about everything. Then whenever I ask the AI — "kal maine kisi se kya baat ki thi?" or "kal mera mood kaisa tha?" — it automatically understands my words, listens, and talks to me the way I talk to others. That was the design: the AI reads what I type, and then speaks with me just like I speak with the world.

DEV Community: Divyaraj Kush

I Built a Personal AI That Remembers Everything I Type