Privacy Policy

Blank lets you describe an app out loud and watch it build itself. This policy explains, in plain language, exactly what data Blank collects, why, and the control you have over it. We keep data collection to the minimum needed to make your apps work and to keep them yours.

The short version

• You can use Blank anonymously — no name, email, or phone number required to start.
• We store the mini-apps you create and their data, scoped to your account.
• We keep a small amount of coarse usage analytics and crash logs to fix and improve the app.
• The prompts you type are sent to an AI provider so it can build your app.
• No cross-app tracking. No ads inside Blank. No third-party analytics or advertising SDKs.
• You can delete your account and all its data from inside the app at any time.

Anonymous by default

When you first open Blank, a device gets an anonymous session identifier. We do not ask for — and do not collect — your name, email, or phone number to use the app. This anonymous identifier is how the app knows which mini-apps belong to your device.

Optional sign-in

You can optionally sign in with an email address or with Google, so your apps stay yours across reinstalls and devices. If you do:

• With email sign-in, we store your email address to identify your account.
• With Google sign-in, we receive and store your basic Google profile (your email address and the basic profile Google returns to sign-in). We do not access your Google contacts, files, or other Google services.

Sign-in is entirely optional. If you never sign in, we never have your email or name.

What we collect and why

• Your mini-app content. The apps you create, their settings, and the data you save inside them. This is stored on our servers, scoped to your account, so your apps and their data persist and stay private to you.
• Coarse analytics. A small set of funnel events (such as opening the app or creating your first app), tied only to your anonymous session identifier. This helps us understand whether the basics are working. We do not build advertising or cross-app profiles.
• Crash logs. Technical diagnostics when something breaks, so we can fix it.
• Your contacts, and finding friends. If you use Invite, Blank asks your device for access to your address book so it can show you a list to choose from. Names and phone numbers are read on your device and are never uploaded. Blank sends nothing to anyone on its own — choosing someone opens your own Messages or Mail app with a message you send yourself.
  If you tap “Find friends” (the Invite sheet explains this first; “Invite without finding friends” skips it), Blank turns each email address in your contacts into a one-way scrambled code (a SHA-256 hash) on your device and sends only those codes to us. We compare them with the same code of each Blank account's email to show you which contacts are already here, add them to your Friends, and notify you when one of your contacts joins later — which also means a contact who has you in their address book may be told when you join and see you in their Friends. We store the codes linked to your account for exactly that purpose, and never use them for advertising or share them. An email hidden with Apple's “Hide My Email” cannot be matched.
  To delete them, open your account (tap your avatar) and tap “Delete contact data”, or delete your account. You can also refuse the contacts permission, or turn it off later in your device settings, and inviting still works by sharing a link.
• How you found us. If you installed Blank after tapping one of our ads, the App Store or Google Play tells us which campaign and search term brought you — nothing about you, and nothing about anything you did in another app. We store it with your account so we can tell which ads are worth paying for. This comes from Apple's and Google's own install-attribution APIs, not from a tracking SDK, which is why Blank never asks for tracking permission.

AI processing of your prompts

To build an app from your description, the prompt you type (and the context of the app being edited) is sent to a third-party AI provider that generates the app for you. Please avoid including sensitive personal information in your prompts. This processing exists solely to generate and modify your apps — it is not used to advertise to you or to profile you across apps.

What we do not do

• We do not track you across apps or across the web.
• We do not show ads.
• We do not embed third-party analytics or advertising SDKs.
• We do not sell your data.

Shared apps

Any app you choose to share gets a public link. Content in an app you share — and anything a person you share it with saves into a shared app — becomes visible to others with the link. Only share apps and data you are comfortable making accessible to the people you share the link with.

Deleting your account and data

You can delete your account and its data directly in the app: open your apps grid and tap “Delete my account & data.” This calls our account-deletion endpoint and removes your account and its access to your private per-user data. This action cannot be undone.

Data retention

We keep your mini-app content for as long as your account exists. When you delete your account, your account and its access to your private data scopes are removed. Coarse analytics and crash logs are retained only as long as useful for operating and improving the app.

Children

Blank is intended for a general audience and is not directed at children under 13. We do not knowingly collect personal information from children.

Contact

Questions about privacy, or a request regarding your data? Email support@feedox.com.