Privacy Policy

Glucat: Cat Diabetes Journal · Last updated: 2026-09-27

Introduction

This privacy policy explains how Glucat: Cat Diabetes Journal processes personal data when you use the app.

What Data We Collect

Device identifier
A pseudonymous identifier generated by the analytics SDK. No account, cat name, reading, dose or note is attached.
Purpose: Measure anonymous product usage and purchase conversion.
Legal basis: Our legitimate interest (Art. 6(1)(f) GDPR)
Data Retention: According to the configured analytics retention period.
Product interaction
Anonymous events for app lifecycle, completed setup (plan status, number of shot times, glucose unit, whether reminders and a target range are used), saved shot routines (given or not, whether a reading was entered, new or edited), saved readings, weights, notes and meals (only the kind), plan changes (only the status), report exports (format and rough period) and paywall display. Cat names, readings, units, doses, food, vet instructions, injection sites and notes are never sent.
Purpose: Improve the daily routine, the vet report and the paid offer.
Legal basis: Our legitimate interest (Art. 6(1)(f) GDPR)
Data Retention: According to the configured analytics retention period.
Purchase history
Product identifier, price, and currency after a verified one-time purchase.
Purpose: Measure paywall-to-purchase conversion.
Legal basis: Our legitimate interest (Art. 6(1)(f) GDPR)
Data Retention: According to the configured analytics retention period.
Feedback content
The category and message a user voluntarily submits, plus app version, build, language, and source screen. The form asks users not to enter personal data.
Purpose: Understand and resolve product problems and requests.
Legal basis: Your consent (Art. 6(1)(a) GDPR)
Data Retention: Until the feedback has been evaluated or deletion is requested.

Your cats, vet plans, shots, readings, weights, notes and photos are stored only on your iPhone. We have no server and no access to your journal. Reports and CSV files leave your iPhone only when you share them. Deleting the app deletes this data.

How We Use Your Data

We use collected data only for the stated purposes. We do not sell personal data or use it for advertising or cross-app tracking.

Data Processors and Subprocessors

PostHog EU Cloud

Purpose: Anonymous product analytics and voluntary in-app feedback.

Data: Device identifier, Product interaction, Purchase history, Feedback content

Location: EU Cloud hosting in the European Union; provider operations may involve the United Kingdom.

https://posthog.com/privacy

Transfer safeguards: EU hosting, the provider DPA, adequacy decisions where applicable, and Standard Contractual Clauses.

Data Retention

We keep personal data only as long as needed for the stated purpose or as required by law. The app-specific retention periods, where applicable, are listed above.

Your Rights

Depending on the circumstances, you may have rights of access, rectification, erasure, restriction, objection, withdrawal of consent and data portability. You may also lodge a complaint with a supervisory authority.

International Data Transfers

Where a listed processor transfers data outside the EU or EEA, the applicable safeguards are stated with that processor.

Changes to This Privacy Policy

We may update this policy when legal, technical or functional changes require it. The current version is always available at this address.

Contact

For privacy questions or to exercise your rights, contact:

Controller:
Timothy Krechel
timkrechel@googlemail.com

Impressum · Legal notice