Terms of Service

By downloading, installing, or using the Ludream app or visiting ludream.app, you agree to these Terms of Service. If you do not agree, please do not use Ludream.

These terms form a legally binding agreement between you and Coderilla GmbH ("we", "us", "our"), the developer and operator of Ludream. "You" means any individual who accesses or uses Ludream.

Ludream is intended for users aged 16 and older. If you are younger, you may only use Ludream with the explicit consent of a parent or guardian.

Ludream is a mobile application for iOS and Android that helps users log dreams, learn and practice lucid dreaming techniques, track patterns over time, and manage reality-check reminders. The app is offline-first and designed to work entirely on-device without requiring an account or internet connection for core features.

Ludream is a personal productivity and wellness tool. It is not a medical device, clinical service, or substitute for professional healthcare. Nothing in the app constitutes medical advice.

Information on the processing of personal data can be found in our Privacy Policy at ludream.app/privacy.

Free and premium features

Ludream is free to download. The free tier includes the full dream journal, all techniques and reality checks, some training sessions, and basic statistics. A one-time purchase unlocks additional content: in-depth sleep science articles, extra quiz topics, additional statistics, and customisable reality-check reminders.

• For purchases made through the Apple App Store or Google Play Store, the purchase contract is concluded exclusively between you and Apple or Google. The right of withdrawal for digital content is governed by the respective platform policies. We have no influence on refund decisions made by the platforms.
• Pricing is displayed in your App Store account's local currency and is subject to change. Changes do not affect purchases already made.

All dream entries, notes, and other content you create in Ludream ("Your Content") belong to you. Because Ludream is offline-first, your content is stored exclusively on your device and we have no access to it.

• You are responsible for backing up Your Content. We are not liable for data loss resulting from device failure, accidental deletion, or operating system changes.
• You may export Your Content at any time using the in-app export function.

Subject to these Terms, we grant you a limited, non-exclusive, non-transferable, revocable licence to install and use the Ludream app on devices you own or control, for your personal, non-commercial purposes.

You may not:

• Copy, modify, or distribute the Ludream app or its source code.
• Reverse-engineer, decompile, or disassemble the app.
• Use the app in any way that violates applicable law.
• Attempt to gain unauthorised access to any system or network.
• Use the app for commercial purposes without our written consent.

Lucid dreaming techniques described in the app are based on published scientific research and widely documented practices. However:

• Results vary significantly between individuals. We make no guarantee that any technique will produce lucid dreams.
• Reality checks only work with genuine attention. Mechanical repetition without sincere questioning has nearly zero effect.
• Information about supplements in the app is for personal tracking and awareness only. Always consult a doctor or pharmacist before taking any supplement.
• If you experience sleep disturbances, hallucinations, or other concerns related to your sleep or mental health, consult a doctor or qualified healthcare professional. Ludream is not a substitute for professional medical advice or treatment.

Ludream, its name, logo, app icon, design, source code, text, illustrations, and all other content — except Your Content — are the exclusive property of Coderilla GmbH and are protected by copyright, trademark, and other applicable intellectual property laws.

Nothing in these Terms transfers any intellectual property rights to you beyond the limited licence described above.

We always strive to ensure the error-free operation of Ludream. However, the app is provided in its current version and subject to technical availability. There is no entitlement to permanent, uninterrupted availability.

Statutory liability for defects is governed by applicable laws. We will ensure that you are provided with the legally required updates (e.g., security updates) during the provision period in order to maintain the app's conformity with the contract.

Coderilla GmbH shall be liable without limitation in cases of intent (Vorsatz) or gross negligence (grobe Fahrlässigkeit), for injury to life, body, or health, and pursuant to the provisions of the German Product Liability Act (Produkthaftungsgesetz).

In the event of a slightly negligent breach of a material contractual obligation—an obligation whose fulfillment is essential for the proper execution of the contract and on whose compliance you may regularly rely (so-called Kardinalpflicht)—the liability of Coderilla GmbH shall be limited to the damage that is typical for this type of contract and foreseeable.

Any further liability of Coderilla GmbH is excluded. This limitation also applies to the personal liability of our owners, employees, and representatives.

Ludream is distributed through the Apple App Store and Google Play Store. Your use of those platforms is governed by Apple's and Google's respective terms and policies. We are not responsible for those platforms' actions, policies, or availability.

Optional features may integrate with iCloud or Google Drive. Use of those services is subject to their own terms.

We reserve the right to modify, suspend, or discontinue Ludream — or any part of it — at any time. We will make reasonable efforts to give advance notice of significant changes that affect purchased features.

We may update these Terms of Service from time to time. We will inform you of any changes in an appropriate manner (e.g., through a notice when starting the app). The amended terms will become effective as soon as you agree to them.

These Terms are governed by the laws of the Federal Republic of Germany, excluding its conflict-of-law provisions. The UN Convention on Contracts for the International Sale of Goods (CISG) does not apply.

For all disputes arising from these Terms or your use of Ludream, the courts at the registered office of Coderilla GmbH shall have jurisdiction, unless mandatory statutory consumer protection regulations of your country of residence dictate otherwise.

If you are a consumer in the European Union, you may also use the EU Online Dispute Resolution platform at consumer-redress.ec.europa.eu. We are not obligated and not willing to participate in a dispute resolution procedure before a consumer arbitration board.

Questions about these Terms of Service:

Coderilla GmbH
Germany
contact@coderilla.de

Full contact and legal notice details are available at ludream.app/imprint.