Privacy Policy
Quire — a reading tracker.
Last updated 24 October 2026
This policy explains what Quire collects, why, who it is shared with, and how to get rid of it. It covers the Quire mobile app and its backend.
The short version. Quire stores what you read so it can show you your reading back to you. We don't sell your data, we don't run ads, and we don't track you across other apps or websites. You can export everything or delete your account from inside the app at any time.
Who we are
Quire is operated by the developer of the app. For any privacy question, or to request deletion of your data, contact danielparagas5@gmail.com.
Age requirement
Quire is for readers aged 13 and over. We ask for your birth year before an account is created and block sign-up for anyone under 13. We do not knowingly collect information from children under 13; if you believe a child has created an account, contact us and we will delete it.
Accounts belonging to 13–17 year olds are flagged as minors and are prevented from publishing public reviews.
What we collect
| Data | Why |
|---|---|
| Email address | To create and sign you into your account. |
| Birth year | To enforce the 13+ age requirement. We store the year only, never a full date of birth. |
| Display name, username, bio, profile photo | Optional. Shown on your profile and next to any public review you write. |
| Reading sessions — pages read, minutes, start and end times, which book | The core of the app: your stats, streak, pace and reading history. |
| Your books — shelves, status, progress, favourites, reading goals, preferred genres | To keep your library and recommendations. |
| Reviews and ratings | Shown to other readers when public. See “Content you publish”. |
| Time zone | Streaks depend on your local date, so we store your device's time zone and UTC offset. |
| Notification token | Only if you enable notifications, so we can send reading reminders to your device. |
| Usage events | A small set of product analytics — see “Analytics” below. |
We do not collect your location, contacts, calendar, microphone, or the contents of your device. The camera is used only when you choose to scan a book's barcode, and photos only when you choose one as a profile picture — neither is uploaded anywhere except a profile picture you deliberately set.
Analytics
We use PostHog to understand how the app is used. It records a handful of named events — completing onboarding, finishing a reading session, adding a book, using the mood recommender, checking in for the day — along with your account identifier and basic properties of the event (for example how many pages a session covered).
We do not use advertising identifiers, we do not build advertising profiles, and we do not track you across other apps or websites.
Content you publish
Reviews and ratings you write are public by default: other Quire readers can see them, along with your display name and profile picture, on the book's page. Don't put anything in a review you wouldn't want a stranger to read.
Every review has a Report action. Reporting a review sends it to us for review and immediately stops that reader's reviews from appearing to you. We remove content that is hateful, harassing, sexually explicit, violent, or spam, and we may suspend accounts that repeatedly post it.
Who we share it with
We do not sell your data. We share it only with the services needed to run the app:
| Service | What it receives |
|---|---|
| Supabase — database, authentication and file storage | All of your account and reading data. This is where Quire's data lives. |
| PostHog — product analytics | Your account identifier and the usage events described above. |
| Google Books API and Open Library — book catalogue | The words you type when searching for a book. No account identifier is sent. |
| Anthropic — AI book recommendations | Only when you use the mood recommender: the mood you describe, your genre preferences, and the titles of a few books you've read recently. No name or email is sent. |
| Expo push service, Google Firebase Cloud Messaging (Android) and Apple Push Notification service (iPhone) | Your notification token and the text of notifications, only if you enable them. |
| Google — if you sign in with Google | Standard sign-in. Google gives us your email address and basic profile; we don't get access to anything else in your Google account. |
| Apple — if you sign in with Apple | Standard sign-in. Apple gives us an identifier for your Apple ID, your email address (or a private relay address, if you choose “Hide My Email”) and, the first time only, your name. We also keep a token from Apple solely so that we can revoke Quire's access to your Apple ID when you delete your account. |
We may also disclose information if legally required to do so.
Where your data is stored
Quire's database and file storage are hosted by Supabase, and analytics by PostHog, on servers in the United States. If you use Quire from outside the US, your data is transferred and stored there.
How long we keep it
We keep your data for as long as your account exists. Delete your account and it is removed, permanently and immediately — see below.
Your choices
Export your data
Settings → Account → Export my data produces a file containing everything we hold about you.
Delete your account
Settings → Account → Delete account permanently deletes your account and all associated data — sessions, books, reviews, stats and profile. If you signed in with Apple, we also revoke Quire's access to your Apple ID. This cannot be undone. If you can't access the app, email danielparagas5@gmail.com from your account's email address and we'll do it for you.
Notifications
Turn any notification off in Settings → Notifications, or all of them off in your device settings.
Your rights
Depending on where you live, you may have the right to access, correct, export or delete your personal data, and to object to certain processing. The export and delete controls above cover most of this directly; for anything else, contact us.
Security
Traffic is encrypted in transit. Your data is protected by row-level security rules that restrict every record to its owner, so one account cannot read another's data. Passwords are hashed and never stored in readable form. No system is perfectly secure, but we take reasonable measures to protect your information.
Changes to this policy
If this policy changes materially we will update the date at the top and, where the change is significant, tell you in the app.