Privacy Policy

Last updated: May 7, 2026

The short version: The Convexy app does not collect, store, transmit, or share any of your data. Your files never leave your device. There is no server. There is nothing to hack. (This marketing site uses privacy-friendly analytics — see below.)

What Data We Collect

The Convexy app collects no personal data, usage data, analytics, diagnostics, or telemetry of any kind. This marketing site (convexy.app) uses a privacy-friendly, self-hosted analytics tool — see the Website analytics section.

How Your Files Are Processed

All file conversions happen entirely on your device using the operating system's built-in frameworks (CoreImage / AVFoundation / PDFKit on iOS; BitmapFactory / Media3 / PDFBox on Android). Your files are:

Read from where you selected them (Photos / Gallery, Files, or another app)
Copied to a temporary working directory on your device
Converted locally using on-device processing
Saved to the location you choose (Photos / Gallery, or Files)
Temporary copies are deleted immediately after conversion

At no point are your files uploaded to any server, cloud service, or third party. The app works fully offline.

Network Access

Convexy makes no network requests except for:

Apple StoreKit (iOS) / Google Play Billing (Android): To verify your purchase status and process the one-time in-app purchase. This communication is between your device and the App Store / Google Play, handled entirely by the operating system. Convexy has no server of its own.

The app functions fully without an internet connection. You can enable Airplane Mode and every feature works normally (except purchasing).

Accounts and Authentication

Convexy does not require or support user accounts, logins, email addresses, or any form of authentication. You open the app and use it.

Third-Party Services

The Convexy app uses no analytics services, crash reporters, ad networks, or tracking tools. The app uses only the platform's native frameworks plus a small number of open-source libraries for specific conversions (e.g., Media3, PDFBox, FFmpegKit on Android). None of these contact any server.

Website analytics

This marketing site (convexy.app) uses Umami, a privacy-friendly analytics tool we self-host on our own infrastructure. It does not set cookies, does not store IP addresses, and does not track visitors across sites — we use it only to see which pages get traffic. The Convexy app itself does not load Umami or any other analytics.

Trial and Purchase Data

When you first open Convexy, a trial start date is saved locally on your device (in the iOS Keychain on iOS, or in local preferences with Auto Backup on Android). This date is used solely to calculate how many days remain in your 14-day free trial. It is never transmitted anywhere.

Purchase status is managed by the platform's StoreKit (iOS) or Google Play Billing (Android) on your device. Convexy does not operate any server to track purchases.

Children's Privacy

The Convexy app does not collect data from anyone, including children. The app contains no social features, no user-generated content, and no communication capabilities.

Changes to This Policy

If this policy changes, the updated version will be posted at this URL with a new "Last updated" date.

Contact

If you have questions about this privacy policy, contact us at [email protected].