Privacy Policy

EpiShield · Last updated 20 September 2026

EpiShield does not collect your data. Everything you record stays on your phone. There are no accounts, no servers, and nothing is uploaded anywhere.

This policy explains that in full, including the few places where information can leave the app because you asked it to. It applies to the EpiShield app for iPhone and Android.

Information we collect

None. We do not collect, receive, transmit, sell, or share any personal information. We have no way to see what you record in the app, because it never leaves your device.

We do not ask you to create an account, sign in, or provide an email address or phone number. The app makes no network requests of its own and works entirely offline.

Information you enter

The app stores whatever you choose to record:

• Seizures — date and time, duration, type, possible triggers, whether rescue medication was used, and your notes
• Medications — names, doses and schedules, and for rescue medication its expiry date, quantity and where it is kept
• Doses you mark as taken
• Daily check-ins — hours slept, sleep quality, alcohol units, stress level, whether you felt unwell, and notes
• Weight entries
• Emergency information — your diagnosis, your rescue plan, and emergency contacts with their phone numbers

All of it is stored in a database inside the app's own private storage on your device. It is not sent to us or to anyone else. We cannot read it, recover it, or restore it for you.

How it is stored

This is health information, and some of it is sensitive. It is stored in ordinary, unencrypted form inside the app's private storage area. It is protected by your device's own security — your passcode or biometric lock, and the file protection your phone applies to app data — but the app does not add a password of its own and does not separately encrypt the database.

Anyone who can unlock your phone can open the app and read everything in it.

Device backups

If your device backs itself up, that backup may include the app's data.

• On iPhone, iCloud Backup may include it. The backup is held by Apple under your own iCloud account and settings.
• On Android, Google's Auto Backup may include it. That copy is held by Google under your own Google account and settings.

Those copies are governed by Apple's and Google's privacy terms, not by this policy, and we have no access to them. You can exclude this app in your device's backup settings if you would rather no copy existed.

Analytics, tracking and advertising

There are none. The app contains no analytics, no crash reporting, no advertising, and no third-party trackers. We do not track you across other apps or websites, and there is nothing in the app that identifies you or your device to us.

The app is built with open-source software libraries — Expo and React Native, together with components for charts, date pickers and notifications. They run entirely on your device and none of them collect or transmit your information.

Health data

The app does not connect to Apple Health or Google Health Connect, and does not read from or write to them. It does not use your phone's sensors, and it does not attempt to detect, measure, or predict seizures. It is a diary you fill in yourself.

The patterns it shows you are counts of the days you recorded, displayed with the number of days each figure is based on. They are not a clinical risk calculation.

Permissions

The app asks for one permission: notifications. You can decline it, and everything else in the app continues to work.

It does not request access to your location, camera, microphone, photos, contacts, or health data held by other apps.

Notifications

The app can remind you to take a dose, tell you when rescue medication is approaching its expiry date, and prompt you to record your weight again after six months.

These reminders are scheduled on your device using its own notification system. They are not push notifications — nothing passes through a server, and no notification token or device identifier is created or sent anywhere.

Reminder text can include the name of a medication, and may be visible on your lock screen. You can change how notifications appear, or turn them off entirely, in your device's settings.

Sharing your own records

The app can generate a PDF report and hand it to your phone's share sheet, so you can send it to a doctor, save it, or print it. The report is created on your device. Once you choose where it goes, that copy is governed by whatever service or app you sent it to. We are not involved and never receive a copy.

The report covers your medications and your seizure history for the period you select. It does not include your daily check-ins, weight entries, dose log, or emergency information.

Copying to your clipboard

The emergency screen can copy your key details — diagnosis, medications, where your rescue medication is kept, and your emergency contacts — to your device's clipboard, so you can paste them into iOS Medical ID or Android's emergency information.

While that text is on the clipboard, other apps on your device may be able to read it. Both iOS and Android will normally notify you when an app reads the clipboard. Anything you paste into Medical ID or Android emergency information is then held by your phone's operating system and can be shown from the lock screen, which is the point of putting it there.

Tapping a phone number

Tapping an emergency contact passes that number to your phone's dialler. The call is handled by your phone and your mobile network in the ordinary way.

Children

The app is a personal record-keeping tool and can be used by or on behalf of a child, often by a parent or carer keeping a record for their family. Because the app collects nothing at all, no information about a child is collected, transmitted, or stored by us.

Deleting your data

Deleting the app from your phone removes its database from the device. Because we never hold a copy, there is nothing for you to request the deletion of, and no account to close.

One thing to be aware of: if your device has backed the app's data up to iCloud or to Google, a copy may remain in that backup after you delete the app, until that backup is deleted or expires. You can remove it through your device's backup settings.

Deletion from the device is otherwise permanent, and the app's own export covers only your medications and seizure history, so anything else you have recorded is lost with it.

Not medical advice

EpiShield is a record-keeping tool. It does not diagnose or treat any condition, does not provide medical advice, and does not calculate or recommend medication doses. Always talk to a qualified healthcare professional about your care, and never change how you take a medication based on anything in this app.

Changes to this policy

If this policy changes, the updated version will be posted on this page with a new date at the top. Since the app collects nothing, any change is likely to be a clarification rather than a change in what happens to your information. If a future version of the app were ever able to send your information off your device, that would be optional and would ask you first.

Contact

Questions about this policy can be sent to weiner.noahg@gmail.com.