Barnacle Privacy Policy

Last updated: 16 August 2026

Barnacle tracks what you pay for subscriptions. This policy explains what the app handles and what leaves your device. The short answer is that nothing leaves your device, and the rest of this page is the detail behind that claim.

The short version. Barnacle collects no data. There is no account, no sign-in, and no server to sign in to. Your subscriptions live in a database on your phone. The app makes no network requests of any kind: no analytics, no crash reporting, no advertising, no tracking, and no rate lookups.

1. What the app stores, and where

Everything you enter stays in a SQLite database in Barnacle's own storage on your device:

Subscription names, prices, billing periods, categories, and renewal dates.
An optional card label and its last four digits, if you choose to type them.
Who a subscription is paid for, notes, and price history.
Your settings: display currency, reminder timing, and an optional email address.

We have no copy of any of it. There is no server, so there is nothing to breach, subpoena, or sell.

2. What the app sends

Nothing. Barnacle contains no networking code. It does not call an API, load remote content, or report errors home. Two things that usually require a network in other apps do not here:

Currency conversion. Exchange rates are bundled into the app when it is built and shown with a tilde to mark them as approximate. Barnacle never fetches rates.
Reminders. Charge reminders are scheduled locally by iOS on your device. Barnacle uses no push notification service and holds no push token.

3. Purchases

Unlocking Barnacle is a single non-consumable purchase handled entirely by Apple's App Store. Payment details go to Apple, never to us, and we never see them. Apple tells the app whether the unlock is owned; the app records that one fact locally. Apple provides us the usual aggregate, anonymous sales reporting that every developer receives.

4. Backups and export

You can export your data yourself. Where it goes is your choice, and once it leaves the app it is outside this policy:

Encrypted backup. Encrypted with a passphrase only you know. We cannot recover it. Lose the passphrase and the file is unreadable for good.
CSV. Not encrypted, and it contains the last four digits of any card you recorded. Treat that file the way you would treat a bank statement.

5. App lock

You can require Face ID, Touch ID, or your passcode before Barnacle opens. iOS performs that check and tells the app yes or no. Biometric data never reaches Barnacle, and the app cannot read it.

6. Your email address

The settings screen has an optional email field. It is stored on your device and used only to fill in a support email you choose to send. It is not transmitted anywhere by the app.

7. Children

Barnacle is a general-audience budgeting tool. It collects nothing from anyone, of any age.

8. Your rights

Because your data is on your device and nowhere else, you already have full access and deletion: edit or delete any subscription in the app, and delete the app to remove everything. There is no server copy for us to hand over or erase, and no request you need to file with us.

9. Changes to this policy

If a future version of Barnacle changes what it handles, this page changes with it and the date above is updated.

10. Contact

Questions about this policy: arun@defyd.com.