A personal health journal
Support and common questions
Understand the issue, then keep what matters. Share only the personal information needed to resolve a request.
Contact support
support@zlc.oneInclude the app version, iOS version, steps to reproduce and expected result. You do not need to send a full health journal. Redact personal and health information before sending screenshots.
This address does not provide emergency medical help or guarantee an immediate reply. Contact local emergency or healthcare services for urgent health concerns.
Common questions
Can I download the app now?
The app is in development and has not launched on the App Store. This site provides no installer or purchase link. Availability will be confirmed by the actual store listing.
Which glucose contexts can I record?
Fasting, 1 hour, 2 hours or 3 hours after a meal, random glucose and custom contexts are supported, alongside measurement time, unit and notes.
Do I have to connect Apple Health?
No. Manual recording works independently. Apple Health is an optional read-only connection subject to system permission and available data. The app does not write or delete Apple Health source data.
Why are no Apple Health records returned?
Check whether the source app or device has written a supported measure to Apple Health, then check system read permission and your selected sync range. An empty result does not necessarily mean permission was denied, and the app cannot confirm permission from that result.
Does revoking Apple Health access erase history?
No. Previously imported history remains locally. There is no separate control to clear imported originals in this version. Explicit source deletion events are handled during a later sync. You can confirm deletion of manual records in their details.
How do I export all data or a selected period?
In Reports and export, choose all history or a date range and generate the report or data format you need. A full backup covers the whole journal. Files have no app-level encryption, so review contents, recipients and storage.
Are health records or exports limited in Free?
Logging, Apple Health import, charts, full export, backup and restore are the same in Free and Pro. Pro is planned as a one-time purchase for permanent ad removal. Live charging and live ads are not enabled yet.
Will local purchase tests charge me? Can I restore?
Clearly labeled local purchase tests make no real charge and do not grant release purchase credentials. When the release product is available, Apple store services can verify and restore existing purchases. Restoring access does not change your health journal.
How do Delete App and Offload App differ?
Delete App in iOS removes local app data. Offload App retains documents and data. Manage Apple Health source data, system backups, saved or shared files and purchase transactions separately. Keep anything you still need before deleting the app.
Are health records used for ads?
Readings, selected measures, fasting or post-meal contexts, measurement times, notes and sources are not sent to advertising services or used for ad targeting. Google services may still process IP addresses, device identifiers, ad interactions and diagnostics; see the privacy policy.
For personal recording and review. The app does not diagnose, treat, provide emergency monitoring or measure glucose or blood pressure itself. Consult a qualified healthcare professional about health concerns.