Privacy · الخصوصية

English

Effective date: September 11, 2026

This Privacy Policy explains how Therinds (“we”) handles information when you use LisanDocs.

Information processed on your device

Imported images and PDFs are used for on-device text recognition. Recognized text, extracted details, saved templates, favorites, and assistant output are stored locally in the app’s private storage. You can delete individual documents or all locally stored documents from the app.

Cloud AI processing

Cloud AI is optional. Before the first cloud request, the app asks for permission and identifies the AI provider. When cloud AI is required, recognized document text, requested action, source language, target language, and a random installation identifier are sent over HTTPS to our backend and to OpenAI. The current text-processing workflow does not upload the original scanned image.

The backend is designed not to place document text or generated output in normal application logs or database tables. Operational logs may contain a request identifier, action type, text length, duration, status, integrity-verification result, and sanitized error code. Supabase stores a one-way hash of a random installation identifier with rate counters, action balances, request identifiers, reservation state, and entitlement dates. To confirm that protected requests came from an authentic LisanDocs installation, the backend also stores an Apple App Attest key identifier, public key, Apple attestation receipt, increasing assertion counter, signed distribution category, and app version. OpenAI receives recognized text to produce the requested result with Responses application-state storage disabled. OpenAI’s default API abuse-monitoring logs may contain prompts and responses for up to 30 days unless different approved data controls apply.

Installation, security, and usage records

We use the installation hash, App Attest data, rate counters, balances, requests, reservations, and entitlement dates to operate the five free actions, the monthly Pro allowance, purchased credits, fraud prevention, and service security. We do not use Apple’s advertising identifier. Old reservations, rate counters, and inactive zero-balance installation rows are removed after 31 days. Active integrity and entitlement records are retained while reasonably necessary to protect and operate the service, verify purchases, prevent fraud, meet legal obligations, and resolve disputes, then deleted or de-identified when no longer needed.

Purchases

Apple processes App Store purchases. LisanDocs sends Apple-signed transaction information to our backend for verification, and Apple may send signed Server Notifications for purchase-state changes. We process transaction and original-transaction identifiers, notification identifier and type, product, quantity, App Store environment, purchase, expiration, grace-period and revocation dates, and resulting entitlement state to provide subscriptions or credits once, support eligible restoration, prevent duplicate delivery, and handle renewals, refunds, and revocations.

Support

If you contact support, we process your email address and the information you choose to send so we can respond, maintain appropriate support records, prevent abuse, and meet legal obligations. Do not send confidential documents unless support specifically provides an approved secure method. Support records are kept only as reasonably necessary for those purposes.

Purposes and sharing

We use information only to provide requested document actions, operate purchases and allowances, prevent abuse, secure the service, diagnose failures, and provide support. Current service providers are Supabase for backend hosting and usage records, OpenAI for cloud AI requested by you, Apple for distribution, purchases, and integrity services, and Cloudflare for the public website. These providers may process information in countries other than yours under their applicable safeguards and terms.

We do not sell personal information, use it for advertising, track you across other companies’ apps or websites, or use analytics or advertising SDKs in version 1.

Your choices

You may decline or withdraw cloud-AI permission and continue using available on-device features. You may delete local documents in the app. Version 1 is account-free and does not require Therinds registration or sign-in. Depending on your location, you may have rights to request access, correction, deletion, restriction, objection, or portability, and to complain to a data-protection authority. For a privacy or data request, email support@therinds.com. We may need a request ID or installation support identifier to locate service records and may retain information where law, security, fraud prevention, or purchase administration requires it.

Security, retention, and children

We use reasonable technical and organizational safeguards, but no system is completely secure. Local data remains until you delete it or remove the app, subject to iOS backup behavior controlled by Apple and your settings. LisanDocs is not designed for children below the minimum digital-consent age applicable where they live. If you believe a child provided personal information without required authorization, contact us.

Changes

We may update this policy as the app, providers, or law changes. We will update the effective date and communicate material changes where required.

Contact

Therinds · support@therinds.com