Do Disturb — Privacy Policy

Effective date: August 5, 2026

Developer: Shreyas Gatuku ("we", "us")

Contact: sgatuku@gmail.com

Do Disturb is a simple app for letting your friends and family know when you're free for a phone call, and seeing when they are. This policy explains exactly what data the app handles and why. We built it for our own friends and family, and the guiding principle is to store as little as possible.

What we collect and why

Your phone number. Used once to verify your identity when you sign in (via an SMS code). Our database stores only a one-way cryptographic fingerprint (SHA-256 hash) of your number — not the number itself. Google Firebase Authentication, our sign-in provider, retains your number to operate the sign-in service.

Contacts you choose. Your contact list stays on your device. When you pick specific people to include in your availability circle, we store: a one-way hash of that contact's phone number (so we can match you with them if they also use the app) and the name label for them. These live in a private area of the database only your account can read. We never upload your full address book, and we never store your contacts' phone numbers in readable form.

Your availability status. Whether "Do Disturb" is on, and when it was last turned on. Sharing this is the entire point of the app. Your availability status and hashed phone identifier are stored in our database and are discoverable by other signed-in users of the app as part of contact matching.

A push notification token. A device identifier issued by Apple/Google so we can notify you when a contact becomes available. Stored in a private area of the database only your account can read.

What we don't do

Where data lives

Data is stored in Google Firebase (Cloud Firestore, Authentication, Cloud Messaging), hosted in the United States. Google processes this data on our behalf under the Google Cloud & Firebase terms.

Retention and deletion

Your data is kept while your account is active. You can permanently delete your account and all associated data (profile, hashed identifiers, contact selections, push tokens) at any time from Settings → Delete Account in the app, which removes it immediately. You can also email sgatuku@gmail.com and we'll remove it promptly.

Beta testing via TestFlight

While the app is distributed through Apple TestFlight, Apple additionally collects beta feedback, screenshots you choose to send, and crash data under Apple's TestFlight terms.

Children

Do Disturb is not directed at children under 13, and we do not knowingly collect data from them.

Changes

If our practices change, we'll update this page and note the new effective date.