ThoughtCache captures the thoughts you'd otherwise lose — spoken, typed, half-formed — and quietly weaves them into a living map of everything you know. All on your phone. All private.
Get ThoughtCacheWhat is ThoughtCache
Most notes apps are just digital paper — you write something down, then you have to find it again. ThoughtCache is different. Speak a thought or jot a line, and an on-device AI model does the rest: it transcribes, titles, tags, and files it into the right Space, then draws the connections to everything related. Over time your scattered thoughts become a navigable Thought Map — the constellation you see above.
Voice notes and quick captures, transcribed and auto-titled on-device. The raw material of your mind.
Action items the AI pulls out of your thoughts automatically, so nothing actionable slips away.
Living topic clusters. Related thoughts gather into a Space and get a rolling AI summary.
Ask questions in natural language and research across everything you've ever captured.
How it works
Tap record and talk, or type a line. On-device speech-to-text and a local language model turn it into a clean, titled thought — no cloud round-trip.
Each thought is tagged, sorted into the right Space, and linked to related ideas, tasks, and past conversations — building your graph as you go.
Explore the Thought Map visually, read a Space's evolving summary, or just ask — ThoughtCache researches across your whole cache to answer.
The Thought Map
The Thought Map is the heart of ThoughtCache — a force-directed graph where every thought, task, space, and chat is a glowing node, and every relationship is a thread of light between them. Nodes drift and settle by how strongly they relate, so clusters of thinking emerge on their own. It's the same visualisation you see animating at the top of this page.
Explicit relationships and AI-inferred semantic ones, drawn together in one graph.
Touch any node to jump straight to the underlying thought, task, or space.
The same map renders on your phone and on the web — synced when you choose to.
The more you capture, the richer the constellation — no manual tagging required.
The AI that transcribes, titles, and connects your thoughts runs entirely on your device. Your thinking never has to leave your phone. Cloud sync across your devices is optional — and it's yours to switch on.