Privacy Policy
Last updated: 21 July 2026
Improva Labs ApS (CVR 46606558), based in Denmark, operates Runsei (“we”, “us”). We are the data controller for the personal data described here. This policy explains what we collect, why, and the rights you have under the EU General Data Protection Regulation (GDPR).
Data we collect
- Account details — your email and, if you sign in with Google or Apple, your name and profile photo.
- Onboarding & profile — the running goals, experience, availability, sex and year of birth you share so we can coach you.
- Training data — your plans, planned and completed workouts, and progress.
- Coach conversations — the messages you exchange with the AI coach, including any voice notes (transcribed to text) and images or PDFs you attach.
- Connected services — if you connect Strava (or, later, a watch platform), the activity data you authorise us to import.
- Technical data — basic device and usage information needed to run and secure the service.
How we use it
- To provide the service: build and adapt your plan, answer you as a coach, and track your training.
- To personalise coaching to you.
- To keep the service secure and working, and to fix problems.
Legal bases
We process your data to perform our contract with you (providing the app), on your consent (e.g. connecting Strava, recording voice notes), and on our legitimate interests in operating and improving a secure service. You can withdraw consent at any time.
AI processing
The coaching and transcription features send the relevant content (your messages, voice notes and attachments, and the training context needed to answer) to trusted AI providers — Anthropic (the coach) and OpenAI (voice transcription and some processing) — acting as our processors. Under their API terms this content is not used to train their models. We send only what is needed to produce your result.
Who we share it with
We do not sell your data. We share it with the processors that run the service:
- Supabase — database, authentication and file storage (EU region).
- Vercel — application hosting.
- Anthropic, OpenAI and Mistral — the AI features above (Mistral is EU-based).
- Strava and any watch platform — only when you connect them.
- A map tile provider — only to draw a run’s route map, and only if you keep maps on (see below).
Some processors (e.g. Anthropic and OpenAI) may process data outside the EU/EEA. Where that happens we rely on appropriate safeguards such as the European Commission’s Standard Contractual Clauses, and the data is not used to train their models.
Keeping your data in the EU
Your data is stored in the EU. If you’d rather it stayed in the EU end-to-end, turn on “Keep my data in the EU” in Settings (available to EU/EEA residents). In that mode the coach runs on an EU AI provider (Mistral), and the features that rely on non-EU services are turned off: voice notes (speech-to-text) and the route map. Both modes are fully GDPR-compliant — this option simply keeps everything within the EU.
How long we keep it
We keep your data while your account is active. If you delete your account, we delete or anonymise your personal data, except where we must keep it to meet a legal obligation.
Your rights
Under the GDPR you can:
- access, correct, or delete your data;
- receive a copy in a portable format;
- object to or restrict certain processing, and withdraw consent;
- lodge a complaint with the Danish Data Protection Agency (Datatilsynet).
To exercise any of these, email privacy@runsei.com.
Security
We use industry-standard measures to protect your data, including encryption in transit and access controls. No system is perfectly secure, but we work to keep your data safe.
Children
Runsei is not intended for anyone under 16. We do not knowingly collect data from children.
Changes
We may update this policy as the product evolves. We’ll change the date above and, for material changes, let you know in the app.
Contact
Improva Labs ApS — privacy@runsei.com.