Last updated: August 24, 2026
By using HydroSleep, you agree to these terms. If you do not agree, do not use the app.
You must be legally able to accept these terms and authorized to record or share the child's and caregiver's information. HydroSleep is not directed to children for their independent use.
Do not delay seeking medical help because of information in HydroSleep. For urgent symptoms or a sudden change in condition, contact a qualified clinician or local emergency service. Do not use the app while doing so would be unsafe.
You are responsible for the accuracy of entries, securing your device, protecting family invitation codes and NAS credentials, and ensuring that invited caregivers are permitted to access the shared data. Anyone with a valid family code may be able to join until that code is rotated.
Features, integrations and availability may change. Sync, notifications, exports and predictions can fail because of device, network or third-party service conditions. Keep independent records when information is important for health or safety.
HydroSleep is free to install and the core tracker is free to use. HydroSleep Plus is an optional paid upgrade that unlocks additional analysis and convenience features. Everything the app offered in its June 28, 2026 store version stays free, as does the free tracking core added since.
Plus is sold exclusively through Google Play Billing. The exact price, billing period and currency applicable to you are shown in the Google Play purchase screen before you confirm; that screen prevails over any figure shown elsewhere. Google is the seller of record for these transactions. HydroSleep never receives or stores your card or payment-instrument details.
Monthly and annual plans are subscriptions that renew automatically at the then-current price until you cancel. Google Play charges the renewal to your payment method at the start of each new period. Cancel at any time in Google Play → Menu → Payments & subscriptions → Subscriptions, at the latest 24 hours before the current period ends; otherwise that period renews. Cancelling stops future renewals and Plus remains active until the end of the period you already paid for.
Where a free trial is offered, it starts only after you explicitly confirm it in Google Play and it is available once per Google account. Unless you cancel before the trial ends, it converts automatically into a paid subscription at the price shown when you signed up. Eligibility is determined by Google Play, not by us.
If a one-time lifetime purchase is offered, it is a single payment that unlocks the Plus features of the HydroSleep app for as long as the app is distributed and supported. It does not renew. It is not a promise of unlimited future cloud storage, hosted media or any service that carries a recurring cost to us; any such service introduced later may require a separate plan with a transparent limit.
We may change prices and the composition of the Plus package for future purchases and renewals. Changes to a renewing subscription are notified through Google Play in accordance with its rules, and you can cancel before they take effect. A change never removes a feature from the free tier as defined above, and never revokes a lifetime purchase already made.
Refunds are handled by Google Play under its refund policy; contact us at hydrosleep.support@gmail.com if you need help. Your mandatory statutory rights are unaffected. If you are a consumer in the European Union, you normally have a 14-day right of withdrawal for digital content; by starting the download or use of the purchased digital content immediately, you request performance to begin at once and acknowledge that this right lapses once performance has been fully rendered.
If a subscription lapses, is cancelled or is refunded, you keep the free tier and you never lose your own records. Sleep, feeding, diaper, health, growth and every other entry stays on your device, your backup and your NAS exactly as before, and export remains free. Only the paid analysis and convenience features stop being available.
Plus is tied to the Google account that made the purchase and can be restored on your devices through that account. We do not promise a shared entitlement across different Google accounts. Sharing care data with other caregivers does not depend on Plus.
Do not misuse the service, attempt unauthorized access, interfere with its operation, upload unlawful content, or use it to violate another person's privacy or rights.
HydroSleep, its design and original content are protected by applicable intellectual-property laws. These terms grant a personal, limited, revocable right to use the app; they do not transfer ownership.
To the extent permitted by law, HydroSleep is provided “as is” and “as available,” without warranties of uninterrupted operation, fitness for a particular purpose or medical accuracy. Nothing in these terms excludes rights or liability that cannot legally be excluded. Otherwise, the developer is not liable for indirect or consequential loss arising from use of or inability to use the app.
You may stop using HydroSleep at any time. Clear app storage or uninstall to remove local data; separately manage exports, NAS copies and family-cloud deletion as described in the Privacy Policy.
HydroSleep is provided by Ing. Filip Kugler, a self-employed trader registered in the Czech Republic, company ID (IČO) 07117485, place of business Prague, Czech Republic. Questions, subscription and refund enquiries can be sent to hydrosleep.support@gmail.com. Material revisions will update the date above. Continued use after an update means you accept the revised terms.