AI & Machine Learning - Data Use Consent

syncsulin GmbH  ·  Version 1.0  ·  April 2026

Here we kindly ask whether you would be willing to let us use your health data to train the AI that powers syncsulin? This is entirely separate from your agreement to the Privacy Policy and Terms & Conditions, and it is completely optional.

Related documents:   Privacy Policy  ·  Terms & Conditions

Why we’re asking

syncsulin’s goal is to give you insights that are genuinely personal. We are not aiming for generic population averages, but patterns that reflect your individual glucose behaviour. To build that kind of AI, we need real-world data from real people. Synthetic data simply doesn’t capture the variability and complexity of how glucose behaves in daily life.

Your data, combined with data from other Beta testers who also consent, is what makes the difference between a generic tracking tool and one that actually understands you. We think that’s worth being completely open about.

What data we use

  • Glucose readings and trend data (CGM readings imported via Apple HealthKit or Glooko CSV)
  • Manually entered insulin doses
  • Meal log entries
  • Sleep and activity data
  • The timestamps connecting these data points — this is what makes pattern recognition possible

We do not use raw Apple HealthKit data directly for AI training. Only data that has been explicitly entered or imported into syncsulin. We do not use your name, email address, or any directly identifying information.

How we protect your data: pseudonymisation

Before your data is used for model training, it is pseudonymised: your identity is replaced with a randomly generated internal identifier. Your name, email, and the mapping between that identifier and your identity are stored separately and are never used in the training process.

Where your data goes

    Your data is processed on EU-based infrastructure: Supabase servers in Ireland, which run on Amazon Web Services (AWS). Supabase acts as our data processor under a Data Processing Agreement (DPA) in accordance with Art. 28 GDPR.We do not sell your data. Ever.
This is optional. Completely. Declining has zero impact on your syncsulin experience. You get exactly the same app, the same features, the same support. The only difference is that your data won’t contribute to model training. That’s a perfectly valid choice, and we respect it fully.

Changing your mind

You can withdraw or grant this consent at any time in Settings → Privacy → AI Training. If you withdraw, we will stop using your data immediately for any new training. Data already incorporated into trained models cannot be retroactively removed, that’s not technically possible with how machine learning works, but no new data will be processed after withdrawal.

Legal basis: Art. 6(1)(a) GDPR (freely given, specific, informed, and unambiguous consent) and Art. 9(2)(a) GDPR (explicit consent for special category health data). This consent is legally and operationally independent from the consent required to use the app.

Consent declaration

AI & ML Training Consent

Optional — no effect on app access if you decline.

I voluntarily and explicitly consent to syncsulin GmbH processing a pseudonymised version of my health data — specifically glucose readings, insulin entries, meal logs, sleep and activity data, and associated timestamps — for the purpose of training and improving syncsulin’s machine learning algorithms for blood glucose pattern recognition and personalised insights.

I understand that: (i) this consent is entirely voluntary and separate from my agreement to the Privacy Policy and Terms & Conditions; (ii) declining or withdrawing this consent has no effect on my access to any feature of the app; (iii) I may withdraw this consent at any time via Settings → Privacy → AI Training; and (iv) my data is pseudonymised before use and will not be shared with any third party.

I confirm I have read and understood this document.

Questions? Contact us at info@syncsulin.com

syncsulin GmbH  ·  AI & ML Consent v1.0  ·  www.syncsulin.com  ·  privacy@syncsulin.com