R.E.V.I.S.
Your AI, inside your Mac.
A pay-once personal AI — no subscription, no cloud. Inference and memory run entirely inside your Mac. So you can trust it with the confidential data you'd never hand to a cloud AI.
A pay-once personal AI — no subscription, no cloud. Inference and memory run entirely inside your Mac. So you can trust it with the confidential data you'd never hand to a cloud AI.
It searches the web — but sends nothing out to think.
Inference happens entirely inside your Mac.
Just as an OS marshals your CPU, memory, and processes to make a machine usable, R.E.V.I.S. marshals models, memory, and reasoning into a place that thinks. Plenty of apps run a model locally. What's different is that R.E.V.I.S. owns the entire layer above it.
The model is a part — the engine. R.E.V.I.S. is the mind that runs on top. How it works →
Your conversations, the documents you share, your memory, and everything the AI learns — all of it is processed only inside your Mac and is never sent to an external AI service. Unlike cloud AI, it is physically impossible for your input to be reused as training data. And we collect nothing — not your data, not your usage, not a single error log — because there simply is no mechanism for it to reach us.
No monthly fees, no add-ons. A one-time purchase.
Just ask in plain words. It reads your intent and orchestrates multiple AIs behind the scenes to answer.
※ The only thing that ever goes to the internet is the search term you enter when you run a search (just like any web search, that term is sent to the destination web servers). Your conversations, documents, and memory themselves are never sent.
※ Sensitive information is protected using the macOS Keychain.
※ These guarantees about not sending or collecting data refer to R.E.V.I.S. itself. Processing by macOS and Apple's frameworks, on which it runs, is governed by Apple's privacy policy.
Explore the design philosophy, development decisions, and continuing evolution of R.E.V.I.S. through our developer interview series.
→ the series “An AI Asks the Developer”
The core technology is patent pending (JP Application No. 2026-072886).
We never receive your card details or passwords.
Developed and operated in Japan.
R.E.V.I.S. now supports reading and writing files. You can load a selected file into R.E.V.I.S. and save the resulting output as a file.
Every v1.x update is included at no extra cost. One purchase, and it grows this much.
Payments via Paddle (we never handle your card details or passwords) / System requirements / How it works →