Privacy Policy

Last updated: July 1, 2026

Nisshi is a local-first macOS app. It is built so your work journal stays yours — on your Mac. This policy explains what that means in practice.

What Nisshi collects

Nothing. Nisshi has no servers and no accounts. Your journal entries, tasks, meetings, goals, documents, and generated summaries are stored in a private database on your device. We never receive, see, or store a copy.

Analytics and tracking

There is none. Nisshi contains no analytics SDKs, no advertising networks, and does no cross-app or cross-site tracking. It does not use the App Tracking Transparency framework because it does not track you.

Artificial intelligence

Nisshi's summaries and suggestions are generated by an AI model you choose:

• Apple's on-device models (default). Processing happens on your Mac; nothing leaves the device.
• Bring your own provider (optional). If you connect Anthropic (Claude), OpenAI, or Google (Gemini) with your own API key, the text needed for that request is sent directly to that provider under their privacy policy and terms. Nisshi has no backend in between and keeps no copy. You can disconnect at any time.

Calendar access (optional)

If you grant calendar access, Nisshi reads events locally to match meetings to the people you track and to prepare 1:1 notes. Events are never modified and never sent off your Mac.

Data you export

You can export your data at any time. Exported files are written wherever you choose and are entirely under your control.

Children

Nisshi is intended for professional use by adults and is not directed to children.

This website

This site sets no cookies and runs no analytics or tracking scripts. It is hosted on Firebase Hosting (Google), which — like any web host — records standard server request logs, including IP addresses, for security and reliability. We do not use those logs to build a profile of you, and we do not combine them with anything else.

Europe and the UK (GDPR)

The data controller for this website is Tarun Kolla, trading as Olta Labs. You can reach us using the contact details below.

The app collects no personal data. Nisshi has no servers and no accounts, so we hold nothing about you — there is no profile, no copy of your journal, and no record of your use of the app. That shapes what your rights under the GDPR mean in practice:

• Access and portability. Your data is already in your hands, on your Mac. You can export all of it at any time from within the app.
• Rectification and erasure. You can edit or delete anything directly in the app, including erasing all of it. Because we never receive a copy, deleting it on your Mac deletes it everywhere.
• Objection and restriction. There is no processing by us to object to or restrict.
• Complaints. You have the right to lodge a complaint with your national data protection authority.

If you choose to connect your own AI provider (Anthropic, OpenAI, or Google), the text needed for that request goes from your Mac directly to that provider, under your own account and their privacy policy. We are not in that path and never see it. You can disconnect at any time, and Apple's on-device model — the default — sends nothing anywhere.

Changes

If this policy changes, the updated version will be posted here with a new date.

Contact

Questions about privacy? Email [email protected].