Notch Privacy Policy

1. Who we are

Notch: GLP-1 Shot Tracker (“Notch”, package dev.zeroglabs.notch) is made by ZeroGLabs (“we”). This policy explains what information the app handles and what this website collects. Questions: zeroglabs.dev@gmail.com.

2. What we collect through the app

Nothing, unless you send us a problem report yourself (see “Diagnostic log and problem reports”). Notch has no account, no analytics and no server of ours. We do not receive your records, your settings or any information about how you use the app. The app uses the internet only for Google AdMob ads and Google’s consent form, described below.

3. What the app stores on your phone

To work, Notch keeps the following in its private storage on your device, which other apps cannot read:

• Your shots: date and time, medication name, dose and unit, injection site and your note.
• Your weights (with your goal weight, if you set one) and side-effect entries: symptoms, severity and your note.
• Your medication, schedule, reminder time and injection sites.
• Your settings: weight unit, theme, language and setup progress.
• The start of your 7-day trial, your 24-hour unlock (when it ends) and when you watched ads for it.
• A diagnostic log (see “Diagnostic log and problem reports” below).

Your records and settings, and the unlock and ad times, are stored encrypted (AES-256). The key is created on your phone; on most devices it is protected by the device keystore (Android Keystore). Files copied off the device cannot be read without the app’s key, and files edited outside the app are rejected. On a rooted phone, or on a device whose keystore cannot keep the key (the key is then kept in the app’s private storage), this protection is limited.

You can edit or delete any record in the app. Settings › Privacy & data › Delete all data deletes every record and setting on this phone. Uninstalling Notch deletes everything stored by the app on the phone.

4. Android backup

Notch allows Android’s own backup. If backup is turned on for your phone, Android can copy your records (shots, weights, side effects, medication, schedule, sites), your settings and the start date of your free trial into the backup of your Google account, and can restore them when you set up a new phone or reinstall Notch. This backup is made by Android and stored by Google under your account; it is not sent to us and we cannot read it. So that your encrypted records can be opened on the new phone, the backup also contains the app’s key for them; on the new phone the app protects it again with that phone’s Android Keystore. Your unlock time, ad history and the diagnostic log are not included. You can turn backup off in your phone’s settings (usually Settings › Google › Backup); Google’s handling of backups is covered by the Google Privacy Policy.

Keeping the trial start in the backup is what stops a reinstall from starting a new free trial.

5. Sharing a visit summary

If you tap Share on the visit summary, Notch creates an image of that summary on your phone and hands it to the app you choose (for example your messages or email app). We do not receive it. The image is kept only in the app’s temporary cache until you share again or delete all data. Notes appear on it only if you turn on “Include notes”.

6. Notifications

If you allow notifications, Notch reminds you on shot day (and the day before, if you turn that on) at the time you set. Reminders are scheduled on your phone; nothing is sent to a server. The notification never names your medication: it only says that it is shot day (or that shot day is tomorrow).

7. Advertising (Google AdMob)

The free version of Notch shows a banner ad at the bottom of the home, history, trends and settings screens, and optional rewarded ads through Google AdMob. Ads are served by Google LLC. To show and measure ads and to prevent fraud, the AdMob SDK sends the following from your device to Google:

• Your advertising ID (Android advertising ID) and app-scoped identifiers
• Your IP address and an approximate location derived from it
• Ad interactions, such as ad views and taps
• Device and app information, such as device type, operating system, language and app version
• Diagnostics about errors and performance of the ad SDK

We do not receive or store this information ourselves. Google’s use of it is described in How Google uses information from sites or apps that use its services and How Google uses cookies in advertising.

Your shots, weights, side effects and notes are never passed to the ad SDK, and ads are not chosen based on them.

8. Rewarded ads

Rewarded ads play only when you tap to watch one. Each ad watched to the end opens longer graph ranges, side-effect trends, dose periods and the visit summary for 24 hours; another ad adds 24 hours, up to 48 hours left, and you can watch up to 2 in any 24 hours. During the 7-day trial everything is already open, so no rewarded ad is offered. Banner ads still show during the trial and the unlock.

9. Ad consent and opting out of personalized ads

In regions that require consent, such as the European Economic Area, the United Kingdom and Switzerland, Google’s consent form (User Messaging Platform) appears on first launch, and ads are personalized or non-personalized depending on your choice. You can change your choice at any time in Settings › Privacy & data › Ad privacy choices (shown only where it is required).

• Anywhere: delete or reset your advertising ID in Android Settings > Privacy (or Google) > Ads to stop receiving personalized ads.
• Information is transferred to and processed by Google LLC in the United States to provide ads, and kept according to Google’s policies.

10. Purchases

Notch currently sells nothing in the app and handles no payment information.

11. Diagnostic log and problem reports

To help fix problems, the app keeps a diagnostic log in its private storage on your device. It keeps at most about 1 MB and deletes the oldest entries first.

• What it records: app version, Android version, device maker and model, language, app events (screen changes, setting changes, reminder scheduling and delivery times, record counts, ad and unlock result codes, error types) and the cause of a crash (a stack trace with file paths removed).
• What it leaves out: medication names, doses, weights, goal weight, symptoms, notes, custom site names and the dates of your records, identifiers such as your advertising ID, and your location.

The app never sends this log by itself. If you tap Settings › About › Report a problem, the share sheet opens so you can pick your email app, which opens a message with the log file attached. It reaches us at zeroglabs.dev@gmail.com only if you send that email yourself. After a crash, the next time you open the app it asks you once whether you want to report it. We use reports only to answer you and fix problems, and delete them when they are no longer needed.

12. Permissions

• Notifications: for shot-day reminders.
• Run at startup: to set reminders again after the phone restarts, the time zone changes or the app is updated.
• Internet and network state: to load ads and the consent form.
• Advertising ID (and Android’s ad services): used by Google AdMob for ads.
• Wake lock and foreground service: added by the Google Mobile Ads SDK’s background-work library; Notch itself does not run a foreground service.

Notch does not use your location, contacts, camera, microphone or Health Connect.

13. Not medical advice

Notch is a personal log, not a medical device. It does not calculate, recommend or adjust doses and does not interpret your records. Always follow your healthcare provider’s instructions.

14. Children

Notch is meant for adults and is not directed at children under 13. We do not knowingly collect personal information from children.

15. Future changes

Notch has no cloud sync today. If we ever add an optional sync (for example to your own Google Drive), it will be off until you turn it on, and we will update this policy before it ships.

16. This website

This website (zeroglabs.dev) is separate from the app. It uses Google Analytics 4 to understand how many people visit and which pages they read. Google Analytics uses cookies and collects information such as the pages you view, the site that referred you, your approximate location (derived from your IP address), your device and browser type, and your language. Google states that Google Analytics 4 does not store IP addresses.

• Ad personalization and Google signals are turned off for this site.
• For visitors in the European Economic Area, the United Kingdom and Switzerland, analytics cookies are off by default. Google may still receive cookieless measurement requests.
• Analytics data is kept for up to 14 months.
• You can opt out with the Google Analytics opt-out browser add-on or by blocking cookies in your browser.
• Learn more: How Google uses information from sites that use its services.

The site is hosted on Cloudflare, which processes technical request data such as IP addresses to deliver pages and protect the service. The website does not show ads.

17. Your choices

Everything the app stores is on your phone and under your control: edit or delete records in the app, use Delete all data, or uninstall it (this also deletes the diagnostic log). You can turn Android backup off in your phone’s settings, change your ad consent in the app, and reset or delete your advertising ID in Android settings. Apart from problem reports you choose to email us, we hold no app data about you; to have a report deleted, contact us. For questions about this website’s analytics, contact us.

18. Changes

If this policy changes, we will update this page and the date at the top.

19. Contact

ZeroGLabs — zeroglabs.dev@gmail.com