/// Offline Invoice Maker

Privacy
Policy

Effective date: 2026-09-10  · Developer: Chronos Labs  · Contact: [email protected]
Applies to: Android (com.offlineinvoicemaker.app) and iOS (com.offlineinvoicemaker.app)
TL;DR — Your data never leaves your device. The App is offline-first. Your invoices, clients, catalog items, logos, photos, and backups are stored locally on your device. We do not operate servers for the App, we do not create user accounts, and we do not collect, transmit, or sell your business data.

Data we (the developer) collect

None. We do not collect, upload, or have access to any personal or business data you enter in the App. Everything stays in the on-device database until you choose to export, share, or delete it.

On-device data

The App stores the following only on your device:

Deleting data in the App deletes it from the device database. Uninstalling the App removes the local data (subject to OS behavior).

Permissions (optional, user-granted)

PermissionPurposeWhere the data goes
Contacts
READ_CONTACTS / NSContactsUsageDescription
One-tap import of client name, phone, email, addressStays on device; never transmitted by us
Camera
CAMERA / NSCameraUsageDescription
Capture job-site photos, attachments, signaturesStays on device / in your exports
Photos / media
NSPhotoLibraryUsageDescription, Android photo picker
Business logos and invoice attachmentsStays on device / in your exports
Storage / filesJSON backups, CSV exports, PDF invoices you createOnly where you save or share them

Denying a permission only disables the feature that needs it. The App has no ads and no analytics SDKs.

Exports, backups, and sharing

Backups (JSON), spreadsheets (CSV), and invoices (PDF) are created at your request and go only where you send them (your files, email, messenger, etc. via the system share sheet). We never see them.

Optional live currency rates

Currency conversion works fully offline with manual rates by default. Only if you explicitly toggle "Use live rates" does the App fetch current rates over HTTPS from open.er-api.com (only the currency code is sent; their privacy policy applies). You can switch back to manual rates at any time, and the App works fully offline without this.

In-app purchases (Pro)

Pro unlocks are sold through the Apple App Store (iOS) and Google Play (Android) and managed via the RevenueCat SDK. Purchase processing is handled by those third parties under their own policies:

We do not receive or store your payment details.

Ratings

The App may show the system store rating prompt (in_app_review). That flow is controlled by Apple/Google; we receive no data from it.

Children

The App is a general business utility, not directed at children under 13. Since all data stays on-device, we knowingly collect no children's data.

Your rights and choices

Regulatory requests (e.g. GDPR/CCPA): email [email protected] — note there is no server-side data for us to retrieve or erase.

Data retention

We retain nothing server-side. On-device data is kept until you delete it or uninstall the App.

Security

Local data benefits from OS-level protections (device encryption, sandboxing, lock screen). No method is 100% secure — protect your device, keep regular JSON backups, and store exports safely.

Data safety declarations (store forms)

Changes

Material changes will be posted at chronos-labs.tech/invoicemaker/privacy-policy with a new effective date. Continued use after the effective date constitutes acceptance.

Contact

Chronos Labs — [email protected]