The Lucid application (the “App”) is published by Guillaume Senderens, Entrepreneur Individuel (EI, France) (“we”).
Contact: bonjour@lucid-zen.com
Your usage data is stored locally on your device, in the App's private storage and a storage area shared only with its blocking extensions (SwiftData database, preferences and local files). This includes:
Lucid does not automatically transmit this data to a server run by the publisher. We cannot access it remotely. If you choose to export, share or send it to support, it leaves the App's storage at your initiative. If you use an Apple backup of your iPhone, it may include this data depending on your settings and Apple's privacy policy.
To block apps, Lucid uses Apple's official frameworks (FamilyControls, ManagedSettings, DeviceActivity), with your explicit authorization. Your selection is stored as opaque tokens provided by iOS: Lucid does not retrieve a readable list of the selected apps' names or identifiers. However, Lucid receives usage-threshold events for this selection and processes their timing locally to estimate usage and interruptions. This is not a detailed history of when you open and close apps.
The Auto Block log helps explain and diagnose blocking behavior. It includes receipt timestamps, thresholds and intervals, chosen durations, estimated usage and inactivity, cycle identifiers and processing outcomes. It contains no app names, selection tokens, web addresses, notes or emotions. It is capped at 2,000 rows; rows older than seven days are deleted when the log is next read or updated, not by a scheduled deletion at a fixed time.
You can clear the log from its screen and explicitly export it as a CSV file. Nothing is automatically sent to support: you choose where to save the file or whom to share it with. An exported copy may contain timestamps that reveal usage habits; share it only with a trusted recipient. Copies already exported are not deleted when you erase Lucid's data.
All Lucid features are free. Optional consumable in-app purchases let you support its development with a one-time payment, without a subscription or feature unlock. Apple handles payment and related data under its privacy policy. Lucid verifies transactions on the device and does not receive your banking details; no purchase history is sent to a Lucid server.
Reminders use iOS local notifications with your permission. On iOS 26 and later, alarms use AlarmKit and a separate permission; on earlier versions, they rely on local notifications and their limitations, including Silent mode and Focus. Scheduling them does not require sending your notes or emotions to a server.
If you email support, we receive your address, your message and the technical information you choose to send. The form may prefill the Lucid version and build number, iOS version and device type. You can review, edit or remove this information before sending. We use it only to respond and resolve your request, and retain it only as long as needed for follow-up and legal obligations.
Local processing required for App features is based on performance of a contract (Art. 6(1)(b) GDPR). System permissions (Screen Time and notifications) rely on your consent, which you can revoke in iOS Settings. Processing a support email relies on our legitimate interest in responding to your request.
You can view your local data and use “Erase my data” in the App to delete local content and settings and stop blocks. This does not delete any Apple backups or messages already sent to support. Manage backups through the relevant Apple services; offloading the App is not the same as deleting its data. To exercise your rights regarding a support exchange (access, rectification, erasure or objection), contact us at the address above. You may also lodge a complaint with your supervisory authority (in France, the CNIL — cnil.fr).
The App is not directed at children under 13. It does not automatically send your usage data to a Lucid server.
We may update this policy. The current version is published on this page with its update date. In case of a material change (for example, the introduction of an online service), the App will inform you.