Privacy Policy

Effective date: October 16, 2026 · Version 2.2

This policy covers the TrayHabit iOS app ("the App"), made by Nomadix Apps LLC — the developer and, where data-protection law uses the term, the data controller for the limited processing described below.

Your data stays with you

Sessions, trays, your treatment plan, goals, calendar events (such as visits, tray changes and scans), statistics, awards and app settings are created and stored on your device. Reminders, including reminders for your calendar events, are scheduled locally by the App and involve no server. Widgets, Live Activities and other places where TrayHabit appears on your Home Screen or Lock Screen read the same on-device data and are updated on the device, without push servers. iOS protects this data with device encryption and app sandboxing; if you back up your iPhone, it may be included in that backup under Apple's terms.

Optional iCloud sync keeps your history current across your Apple devices through Apple's CloudKit, in the private database of your Apple Account. We have no access to it — no copy, no key, no statistics derived from its contents. You can turn sync off at any time in the App under Settings → iCloud Sync; to remove the copy already in iCloud, use iOS Settings → your name → iCloud. iCloud itself is governed by Apple's Privacy Policy (opens in a new tab).

Exports. The PDF summary and CSV wear log you can create are made on your device and go only where you send them through the iOS share sheet — for example, to your orthodontist. Once shared, that copy is handled by the person or service you chose.

Motion. On the awards screen the App reads your device's motion sensors so the medals tilt as you move your phone. These readings are used in the moment, never stored and never leave your device.

What we receive

Three providers process data on our behalf. None of them receives your wear history, and none is given your name, email or Apple Account.

• RevenueCat (United States) validates purchases and manages the optional TrayHabit Pro subscriptions and purchases: an anonymous identifier generated for your copy of the App, Apple transaction and receipt data, basic device and app information, and your IP address (used transiently to deliver the service and prevent fraud). Payments themselves are handled by Apple — we never see your card, name or billing address. If you buy a Family plan, Apple shares it with the members of your Family Sharing group; RevenueCat then sees the same kind of anonymous records for their copies of the App, and we learn nothing else about them. RevenueCat also forwards anonymous purchase events — such as a started trial, a renewal or a cancellation, with the product and its price — to TelemetryDeck, linked only to the hashed identifier described below. Transfers to the US are covered by standard contractual clauses in RevenueCat's DPA (opens in a new tab); see also its Privacy Policy (opens in a new tab).
• TelemetryDeck (TelemetryDeck GmbH, Germany) handles product analytics: interaction signals such as "onboarding completed" or "paywall shown"; your answers to the onboarding questions, as coarse values (your daily wear goal in hours, how often you switch trays, roughly how far short of the goal you tend to fall, and whether you use a break budget) that are not linked to your wear history; the purchase events forwarded by RevenueCat; basic device and app information (app version, iOS version, device model, language and region); and an identifier for your copy of the App that is hashed on your device and hashed a second time on arrival, so that neither we nor TelemetryDeck can reverse it. Timestamps are rounded to the hour, and TelemetryDeck states that it does not store the IP addresses of app signals. Processing takes place in the EU. See the TelemetryDeck Privacy Policy (opens in a new tab).
• Sentry (Functional Software, Inc., using its EU region in Frankfurt, Germany) handles crash reports and diagnostics: crash and freeze traces, errors the App caught and recovered from, basic device and app information, occasional performance measurements such as app start time, and the same anonymous identifier, so that we can tell how many people a bug affects. Sentry's optional collection of personal data is switched off — no IP address, no screenshots, no screen recording. Account metadata of our Sentry organisation is held in the United States; transfers are covered by standard contractual clauses in Sentry's DPA (opens in a new tab); see also its Privacy Policy (opens in a new tab).

All of it travels over encrypted connections (TLS) and is used only to run subscriptions and improve the App.

What we never do

• No account or registration, and no advertising identifiers — the App does not track you across other apps or websites, so it never asks for App Tracking Transparency permission;
• No access to contacts, location, photos, microphone or camera, and no HealthKit integration; the App's calendar is its own and does not read or write your iOS Calendar;
• No ads, no data brokers, and no selling or sharing of personal information — including within the meaning of the CCPA.

Deletion and your rights

Deleting the App deletes the data on your device; the iCloud copy is removed as described above. The anonymous records held by RevenueCat, TelemetryDeck and Sentry are kept only as long as needed to operate the service and meet legal obligations.

Under the EU/UK GDPR, the CCPA and similar laws you may request access, correction, deletion, restriction or portability, and object to certain processing. Because we hold nothing that identifies you, most of these rights you exercise yourself through the App and iOS; for the anonymous records above, write to support@trayhabit.app and we will delete what is tied to your anonymous identifiers or help with any other request. We do no profiling or automated decision-making. In the EU/EEA or the UK you may also lodge a complaint with your local supervisory authority.

Children

The App is not directed at children under 13 (or the equivalent minimum age where you live), and we do not knowingly collect personal information from them.

Not medical advice

TrayHabit is a self-tracking tool. Wear-time records, treatment-plan dates and reminders are informational only; always follow the instructions of your orthodontist or dentist.

Changes and contact

If our data practices change, we will update this policy and its effective date, and give notice in the App before material changes take effect. Previous versions are available in the site's public history (opens in a new tab).

Nomadix Apps LLC
Email: support@trayhabit.app