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Privacy Policy

Your data stays with you.

Sipline is built to work without an account, without ads and without tracking you. This page explains plainly what we collect — and, more importantly, what we don't.

Effective January 1st, 2026 Version 1.0

01 Who we are

Sipline is published by Sipline SAS, a company registered in France (RCS Paris, share capital €1,000), headquartered at 12 rue de la Soif, 75011 Paris. Contact: nenad@keeponapps.com.

For the purposes of the GDPR, Sipline SAS is the data controller for the limited data that does pass through our servers (payment, support emails).

02 What we do NOT collect

The app works offline by default. That means, at no time, do we have access to:

  • Your drink entries, amounts, timestamps or daily goals.
  • Your weight, age, or Apple Health data.
  • Your GPS location, contacts, or address book.
  • Your advertising identifiers (IDFA) — the app never asks for them.

03 What we collect, and why

Data
Purpose
Legal basis
Retention
Email (support)
Reply when you write to us
Legitimate interest
3 years after last exchange
App Store receipt
Activate Pro, handle refunds
Contract performance
10 years (accounting law)
Anonymous crashes (opt-in)
Fix bugs
Consent
90 days
Usage stats (opt-in)
Improve the app, never identifiable
Consent
13 months

04 Apple Health

If you enable it, Sipline reads your weight (to compute your recommended water goal) and writes your water intake back to Apple Health. This exchange happens entirely on your iPhone — none of it transits our servers. You can revoke access any time from Settings → Health → Data Sources.

05 Sub-processors

Sipline relies on a deliberately short list of vendors:

  • Apple Inc. — App Store distribution, payments, App Store Connect (USA / EU).
  • Sentry GmbH — anonymous crash reports (EU), only if you opt in.
  • Plausible Insights OÜ — cookieless usage analytics (EU), only if you opt in.

None of these vendors receive your hydration data. No data is transferred outside the EU without an appropriate legal framework (Standard Contractual Clauses).

06 Your rights

Under the GDPR, you have the right to access, rectify, erase, object to, restrict and port your data. Because we hold almost nothing about you, exercising these rights is quick: email nenad@keeponapps.com — we reply within 30 days.

You can also file a complaint with the French data protection authority, the CNIL — cnil.fr.

07 Cookies

This website (sipline.app) uses no cookies, no advertising trackers and no social pixels. If you see a consent banner, something has gone wrong — let us know.

08 Changes

This policy may evolve to reflect new features or legal obligations. Any material change will be notified in the app at least 30 days before it takes effect.

09 Contact

A question, a concern, a GDPR request? nenad@keeponapps.com — a human replies, usually within 48 hours.