Last updated: 19 May 2026
Invoice is an iOS app published by Zhang Jiahao (Atrium Studio). The app is designed so that your invoices, clients, and generated PDFs stay on your iPhone unless you explicitly opt in to iCloud sync.
None — by default. Invoice has no analytics SDK, no advertising SDK, no crash-reporting SDK, and no third-party tracking of any kind. The binary makes no network call to any server we operate, because we do not operate a server.
If you turn on "iCloud sync" in Settings, your data is replicated between your own devices using Apple CloudKit. The data sits inside your private iCloud database, encrypted in transit and at rest by Apple. We have no ability to read it. You can turn the toggle off and your data will stop syncing; deleting the app and signing out of iCloud will remove the records.
Subscriptions are handled entirely by Apple StoreKit and Apple In-App Purchase. We never see your card or any payment instrument. We do not connect to Venmo, Zelle, Stripe, PayPal, or any bank API. When you "mark an invoice as paid" inside the app, that is a manual flag and stays in local storage.
Invoice is rated 4+. It does not knowingly collect any personal information from anyone, including children under 13.
Questions about privacy? Email jasperabundant@gmail.com.