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content(kairos): add privacy policy + on-device AI positioning
- New /kairos/privacy page (self-hosted EU data, on-device/LAN/cloud AI choice, anonymous analytics, GDPR rights) — required for the app store listing. - Project page: note the on-device local-AI option and link the privacy policy.
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‎src/content/projects/kAIros/index.md‎

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@@ -4,13 +4,14 @@ description: "An AI-guided goal-tracking app: define goals through conversation,
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date: "Feb 2026"
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---
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**kAIros** is a mobile app that helps you define, track and actually reach your goals. Instead of a blank form, it uses a **conversational, AI-guided approach** to help you frame a goal, break it into concrete steps and set a realistic timeline — then keeps you moving with reminders and personalized motivation.
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**kAIros** is a mobile app that helps you define, track and actually reach your goals. Instead of a blank form, it uses a **conversational, AI-guided approach** to help you frame a goal, break it into concrete steps and set a realistic timeline — then it's the coach that **notices when you stall** and nudges you back on track.
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## What it does
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- **AI-guided goal creation** — talk through what you want to achieve and let the app help structure it into steps and milestones.
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- **Goal and step tracking** — follow progress on each goal and its individual steps.
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- **Personalized reminders** — timely nudges about upcoming deadlines.
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- **Motivational messages** tailored to your goals and current progress.
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- **Your AI, your choice** — run the coach fully **on-device** (offline and private, no data leaves your phone), on your **own LAN server**, or in the cloud.
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Built with React Native and Expo, with LLM integration for the conversational layer.
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Built with React Native and Expo. Your account and goals live on a self-hosted EU server; the on-device model runs locally via llama.cpp. → [Privacy policy](/kairos/privacy)

‎src/content/staticPages/kairos/privacy.md‎

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---
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title: "kAIros — Privacy Policy"
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slug: "/kairos/privacy"
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description: "Privacy Policy for the kAIros goal-coaching app (iOS & Android)"
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date: "07/07/2026"
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---
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_Last updated: 7 July 2026_
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kAIros is an AI goal-coaching app for iOS and Android. It helps you set goals, break them
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into steps, and stay on track with reminders and an AI coach. This policy explains exactly
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what data kAIros processes, where it goes, and the choices you have. It applies to the kAIros
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mobile apps and the kAIros web app.
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## Controller
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Tobias Leinss<br />
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Blumenstr. 73<br />
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73033 Göppingen<br />
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Germany
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Email: inquiry@leinss.xyz
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## The short version
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- kAIros is **self-hosted**. Your account and goal data live on a private server operated by
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the controller in **Germany (EU)** — not on a third-party cloud, and never sold to anyone.
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- The **AI coach can run three ways, your choice**: fully **on-device** (nothing leaves your
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phone), on your **own LAN server**, or in the **cloud**. You pick this in Settings → AI Model.
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- Analytics are **anonymous** and self-hosted; there are **no advertising trackers** and we do
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**not** sell your data.
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## What data we process
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**Account & authentication.** When you sign up we store your email address and an encrypted
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authentication token so you can log in and sync across devices. Authentication runs on our
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self-hosted [Supabase](https://supabase.com/) instance in Germany.
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**Your goals and app content.** The goals, steps, reminders, categories, habits, check-ins and
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notes you create are stored in that same self-hosted database so they sync between your devices.
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A copy is cached **locally on your device** so the app works offline.
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**AI coaching content.** To generate suggestions, step breakdowns and motivational messages, the
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relevant text (e.g. a goal title and your progress) is sent to the AI backend **you have
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selected**:
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- **On-device** — the model runs locally on your phone via `llama.rn`. Your text is processed
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entirely on the device and **is not transmitted anywhere**.
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- **LAN server** — your text is sent to a server **you** run on your own network (e.g. LM Studio
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or Ollama). It stays within your own infrastructure.
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- **Cloud** — your text is sent to the cloud model provider you configured (by default
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[Anthropic](https://www.anthropic.com/legal/privacy)) to produce the response. Once your text
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reaches that provider, **their** privacy policy applies.
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**Voice input (optional).** If you use voice features, the audio you record is transcribed by the
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speech provider you selected — this can be **on-device/offline** or a cloud transcription service.
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Cloud transcription sends that specific audio clip to the provider; the local recording is removed
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after transcription.
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**Usage analytics (anonymous).** kAIros uses a **self-hosted [Aptabase](https://aptabase.com/)**
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instance to count anonymous, aggregate events (for example "app opened", "goal created"). These
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events contain **no personal content** and are not linked to your identity or used to track you
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across apps.
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**Crash & error diagnostics.** To fix bugs, technical error reports (stack traces, device model,
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OS version) may be sent via [Sentry](https://sentry.io/privacy/). These are used solely to
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diagnose crashes and are not used for advertising.
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**Purchases (if you subscribe).** Premium subscriptions are processed by the app store and by our
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payment processors [RevenueCat](https://www.revenuecat.com/privacy/) and
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[Stripe](https://stripe.com/privacy). They handle your purchase/receipt data; kAIros receives only
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your subscription status, never your card details.
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## What we do **not** do
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- We do **not** sell or rent your personal data.
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- We do **not** run advertising or third-party ad/tracking SDKs.
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- We do **not** profile you across other apps or websites.
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## Data location & retention
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Account and goal data are stored on a private EU (Germany) server for as long as your account
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exists. Locally cached data lives on your device until you clear it or uninstall. You can clear
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local data any time from **Settings → Clear App Data**. Anonymous analytics are retained only in
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aggregate.
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## Your choices
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- **Choose your AI backend** (including fully offline on-device) in **Settings → AI Model**.
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- **Clear local data** in Settings.
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- **Delete your account and associated data** by contacting **inquiry@leinss.xyz**.
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## Children
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kAIros is not directed at children and does not knowingly collect data from anyone under the age
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required by your local law.
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## Your rights (GDPR)
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You have the right to access, rectify, erase, restrict and port your personal data, and to object
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to processing (Arts. 15–21 GDPR). To exercise these rights, or to delete your account, contact
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**inquiry@leinss.xyz**. The general [leinss.xyz privacy policy](/privacy) additionally describes
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your GDPR rights and the supervisory authority you may contact.
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## Changes
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If this policy changes, the updated version will be published at this URL with a new date.
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## Contact
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Questions: **inquiry@leinss.xyz**

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