AxisCalc Privacy Policy

How AxisCalc works

AxisCalc performs its core engineering and mathematics calculations on your device. The calculation catalog is bundled with the app and can be used offline. You do not need an AxisCalc account, and the app does not operate an account-based cloud-sync service.

Information kept by the app

AxisCalc keeps your unit, angle and display preferences, favorites and recent scientific expressions in local app storage. Some workspaces also keep a draft so you can resume your inputs.

When you save a calculation, the app stores its inputs, units, results, assumptions, tool and version information, record identifiers and dates. Saved work may also include names, notes, projects and earlier revisions. Recovery can retain raw data from unreadable drafts or records, or conflicts encountered during import. Information you enter in these fields may identify you, your client or your project.

Reports, backups and files you choose

You can create PDF reports, CSV tables and JSON exports through the device's sharing controls. These files can contain the entered information and saved calculation details. The app creates temporary local copies; they are not automatically erased when the share sheet closes.

Back up library creates a readable, unencrypted JSON file containing Saved calculations and revisions, projects and notes, Trash, favorites and Recovery. Workspace drafts, scientific history and Settings are excluded from that backup.

Restore backup opens the system file picker. AxisCalc reads the selected backup locally and presents an import preview before adding its contents. Existing records and projects are retained; conflicting incoming data can be kept in Recovery. The app copies the selected file to temporary local storage to read it.

The file picker and share sheet may offer local folders, other apps or cloud providers you have enabled. If you select a cloud provider, it may download or upload the file through its own service. The destination you choose handles and retains its copy under its own terms and privacy policy. Keep exported backups in a location you trust, and avoid sharing confidential project information unintentionally.

Device backup and data controls

Android may include eligible local app data in operating-system backup or device transfer, depending on the device, settings and service. This is separate from the Saved-library backup feature. The iOS local-storage library excludes its data from iCloud Backup by default. AxisCalc does not guarantee recovery after deletion, reinstallation or a device change.

You can clear scientific history in Settings and remove favorites. Moving a Saved record to Trash keeps it available for restoration; it does not permanently erase the record. Earlier revisions and Recovery data are also retained locally. Removing app storage or uninstalling can remove local data, but operating-system backups, device transfers and files you already exported may retain copies. Manage those copies through the relevant device settings, app or provider.

Device access and purchases

AxisCalc's calculation and drawing features do not request camera, photo-library, microphone, location, contacts or advertising-tracking access. Restoring a backup accesses the document you select through the system picker.

App purchases and redownloads are handled by the store account used to buy the app. AxisCalc's calculation screens do not request payment-card details.

Customer support

For AxisCalc customer support, email developer@kdtdatasolution.com. The Contact support control opens your email app with an AxisCalc/version subject. It does not automatically attach calculations or send a message. You choose what to include and whether to send it. Provide only the information needed to explain your issue; an invented calculation example can help avoid sharing confidential project information.

When you email support or make a privacy inquiry, we receive your email address, message and any attachments or other information you choose to provide. We use this correspondence to understand and respond to your request, provide support, keep related support records and meet applicable legal obligations. Our email service provider processes correspondence for delivery and storage.

We retain correspondence only as long as needed for those purposes, including related support records and applicable legal obligations. To ask about your information or request access, correction or deletion, contact developer@kdtdatasolution.com.