Privacy Policy

Effective Date: August 5, 2026

Last Updated: October 14, 2026

Multi_Software (“we,” “our,” or “us”) provides UniWord, a commercial mobile application for learning vocabulary and languages. This Privacy Policy explains how information is collected, used, stored, disclosed, and protected when you use the UniWord app, the UniWord website (including https://capstab.com/uniword), and related services.

UniWord is intended for users aged 13 years and older. By accessing or using UniWord, you acknowledge that you have read this Privacy Policy.

UniWord can be used in Guest Mode without creating an account. Google Sign-In is available to save learning progress, synchronize data, and restore supported data across devices.

If you use Guest Mode, your learning progress may remain only on your device. It may not be recoverable if you uninstall the app, clear its data, reset the device, or switch to another device. Guest Mode does not prevent us from collecting limited analytics and diagnostics information as described in Sections 1.F and 1.G.

1. Information We Collect

We collect only information reasonably necessary to operate, maintain, secure, and improve UniWord.

A. Guest Mode

You can use UniWord without signing in.

In Guest Mode:

Learning progress, preferences, custom word lists, and user-added reading texts may be stored locally on your device.

Guest Mode learning data is not linked to a UniWord cloud account unless you later choose to sign in and synchronize supported data.

Locally stored learning data may be lost if the app is uninstalled, app data is cleared, or the device is replaced.

Limited product-analytics and diagnostics events may still be sent to our analytics providers using anonymous or device-based identifiers, as described in Sections 1.F and 1.G. If you later sign in, that analytics history may be associated with your UniWord account where supported.

To synchronize or restore supported learning progress across devices, you may sign in with Google.

B. Account Information

When you sign in using Google Sign-In, we may receive limited information associated with your Google account, such as:

Your name

Email address

Profile photo, if provided by Google

A unique account identifier

We use this information for:

Account authentication and access

Identifying your account inside the app

Synchronizing, backing up, or restoring supported learning data

Responding to support or account-deletion requests

Linking UniWord Pro subscription entitlements to your account, where applicable

Associating product-analytics events with your UniWord account

Authentication and account services may be handled by Google and Supabase.

We do not receive or store your Google account password.

C. Learning and App Data

When you use UniWord, we may process information related to your learning activity, including:

Saved vocabulary and custom word lists

Learning progress and revision history

Review, quiz, or exam status

Grammar lesson progress

Daily goals, streaks, preferences, and app settings

Saved catalog articles or stories

User-added reading texts, titles, translations, categories, difficulty labels, and related glossaries that you create or save

Language selections

Supported backup, synchronization, and restoration data

If you are signed in, supported learning data — including custom word lists and user-added reading content — may be stored in our cloud backend (Supabase) so it can be synchronized or restored on another device. Other users cannot access your private learning data through the app.

D. User-Added Reading Content and AI Features

UniWord lets you add your own reading texts (for example by typing, pasting, scanning with on-device OCR, or voice input) and generate translations, titles, categories, difficulty labels, and word glosses.

When you use these features:

The text you submit, and the generated translation and related learning metadata, are stored locally on your device.

If you are signed in, that content may be uploaded to our cloud backend and linked to your UniWord account for backup and device sync.

To generate a translation, glossary, or word-enrichment example, the relevant text (and, for word collection, selected words and optional surrounding context) is sent to our servers and then to third-party AI providers. We currently use OpenRouter, which may route the request to models such as Google Gemini or OpenAI.

On-device OCR generally extracts text on your device first. We do not upload OCR source images to our servers for advertising. If a feature sends an image to an AI provider for text extraction, that image is used only to provide the requested feature.

Do not submit passwords, financial account numbers, government ID numbers, health records, or other highly sensitive personal information as reading or vocabulary content. User-added content may include whatever you choose to provide. We process it to provide the feature you requested, not to sell it or use it for advertising.

We do not use your user-added reading texts to train our own public AI models. Third-party AI providers process submitted text according to their own terms and privacy policies, which may include limited logging or abuse monitoring.

E. Subscription Information

UniWord offers paid features through UniWord Pro subscriptions.

If you purchase UniWord Pro:

Payment is processed by Google Play.

We do not receive or store your full payment card details.

Google Play and RevenueCat may process purchase and subscription information.

We may receive subscription status, product identifiers, purchase status, expiration information, and entitlement status.

Subscription entitlement information may be associated with your UniWord account so Pro access remains consistent across supported devices.

Available plans, prices, free trials, introductory offers, renewal terms, and applicable taxes are shown in the app and in the Google Play purchase screen before purchase.

Where offered, the yearly subscription may include a 3-day free trial. Eligibility and availability are determined by Google Play. After the trial, the subscription automatically renews at the displayed price unless it is cancelled or otherwise managed through Google Play.

F. Product Analytics (PostHog)

UniWord uses PostHog, a third-party product-analytics service hosted in the European Union (https://eu.i.posthog.com), to understand how the app is used and to improve onboarding, learning features, and UniWord Pro.

We may collect:

App lifecycle events (such as app opened or backgrounded)

Onboarding steps and selected language pair

Feature-usage events (such as paywall viewed, free-feature limits reached, or daily goals completed)

Technical and device information commonly included by the analytics SDK (such as app version, device type, operating system, locale, and an analytics identifier)

If you sign in, your UniWord account identifier, together with limited properties such as selected languages and whether UniWord Pro is active

We do not send the following to PostHog:

Your Google email address, name, or profile photo

The full text of user-added readings, translations, or custom word lists

Payment card details

Session recordings or screen replay (session replay is disabled)

The app may also keep limited local counters on your device (for example paywall or feature-gate counts) to operate in-app limits. Those local counters are separate from PostHog.

We do not use PostHog for targeted or cross-context behavioral advertising, and we do not sell analytics data.

PostHog’s own privacy policy is available at: https://posthog.com/privacy

G. Firebase Analytics and Crash Reporting

UniWord also uses Google Firebase services:

Firebase Analytics (Google Analytics for Firebase) for automatic usage metrics such as app installs/opens, sessions, and approximate country or region

Firebase Crashlytics for crash and stability reports so we can find and fix bugs

Through these services, Google may process limited technical and device information, which can include app version, device type, operating system, crash logs, diagnostic data, an app instance identifier, Advertising ID (where available on the device), and approximate geographic information derived from IP address or similar signals.

We use this information to:

Measure how many people install and use UniWord

Understand aggregate usage by country or region

Improve reliability and fix crashes

We do not use Firebase Analytics to show you third-party ads inside UniWord, and we do not sell this data. We do not run our own targeted or cross-context behavioral advertising based on this information.

Firebase / Google privacy information is available at: https://policies.google.com/privacy and https://firebase.google.com/support/privacy

2. Information We Do Not Intentionally Collect

We do not intentionally collect:

Your Google account password

Full payment card information

Personal contacts or address-book data

Private messages from other applications

Biometric identifiers

Precise GPS location for advertising

Data for targeted or behavioral advertising by Multi_Software

Note: UniWord may access the device Advertising ID so Firebase Analytics can measure installs and usage. That is for analytics and app improvement, not for selling ads or building advertising profiles for third-party advertisers.

We do not sell your personal information.

We do not use personal information for cross-context behavioral advertising.

3. Local Device Processing

Many UniWord features operate locally on your device, including:

Vocabulary saving and review

Guest Mode learning progress

App preferences and settings

OCR text recognition

On-device translation

Downloaded language models

Certain usage counters

OCR and Images

When you choose an image or use the camera for OCR, the image may be processed on your device using Google ML Kit or related device services.

UniWord does not intentionally upload OCR source images to our servers for advertising or unrelated purposes.

Recognized text that you choose to save as learning or reading content may be stored locally or synchronized with your account when account-based synchronization is enabled. If you then use an AI translation or word-enrichment feature, the extracted text may be sent to AI providers as described in Section 1.D.

Translation

UniWord includes more than one translation path:

On-device translation may use Google ML Kit language models downloaded to your device. Text processed only through on-device translation is not intentionally uploaded to our servers solely for that translation.

Cloud AI translation (used for user-added reading texts and certain word-enrichment features) sends the submitted text to our servers and to third-party AI providers as described in Section 1.D.

Translated or saved content that you choose to add to your learning data may be stored locally or synchronized with your account.

Voice Typing and Speech Recognition

Voice typing may use on-device or network-based speech recognition depending on:

Your device

Operating-system settings

Installed language packs

Internet availability

Your selected speech-recognition provider

Speech input may be processed by Google, your device manufacturer, your operating-system provider, or another speech service configured on your device. Their processing is governed by their respective privacy policies. Text produced from speech that you save as learning or reading content is treated as user-added content under this policy.

4. Permissions We Request

UniWord may request device permissions only when needed for specific features.

Camera

Used to capture images for OCR when you choose to use the camera feature.

Photos or Storage

Used to select an image for OCR or access files that you explicitly choose.

Microphone

Used for voice typing or speech input when you activate that feature.

Notifications

Used for learning reminders, daily-goal notifications, streak reminders, or similar educational notifications when enabled.

Advertising ID

Used by Firebase Analytics for install and usage measurement on Android, where available. You can reset or limit Advertising ID in your device settings. UniWord does not use Advertising ID to show third-party ads in the app.

You may deny or revoke permissions through your device settings. Some related features may not function without the required permission.

5. How We Use Information

We may use information to:

Provide access to UniWord and its features

Authenticate and manage accounts

Save, synchronize, back up, or restore supported learning progress, including user-added reading content and custom word lists

Generate translations, glossaries, and learning examples you request through AI features

Provide and manage UniWord Pro access

Personalize learning goals and app preferences

Maintain streaks, progress, and learning history

Measure product usage (including installs and approximate country or region) and improve app functionality, reliability, onboarding, and user experience

Detect bugs, crashes, abuse, fraud, or security issues

Respond to support, privacy, and deletion requests

Comply with legal obligations

Enforce applicable terms and protect our rights

We process information only for purposes reasonably connected to operating UniWord and providing requested features.

6. Legal Bases for Processing

Where laws such as the European Union General Data Protection Regulation apply, we may process personal data based on:

Contract: To provide account, synchronization, subscription, user-added content storage, AI translation, and other app services you request.

Consent: When you grant permissions, enable optional features, or provide information voluntarily (including user-added texts you submit).

Legitimate interests: To maintain security, prevent abuse, troubleshoot issues, understand product usage (including aggregate install and country metrics), and improve UniWord, in a way that we consider does not override your rights.

Legal obligations: When processing is required by applicable law.

Vital interests or public interest: Where applicable and legally permitted.

You may withdraw consent for optional processing at any time. Withdrawal does not affect processing that occurred before consent was withdrawn. You can delete user-added reading items in the app, sign out, or delete your account as described in Section 12. To object to analytics processing or request deletion of analytics records, contact support@capstab.com.

7. Data Storage and Security

Guest Mode learning data may be stored locally on your device.

Account-linked information and synchronized learning data, including user-added reading content, may be stored using trusted service providers such as Supabase and related infrastructure providers. Access to your cloud learning data is restricted so that other UniWord users cannot read it.

Subscription and entitlement information may be processed by Google Play and RevenueCat.

Product-analytics events may be stored by PostHog in the European Union.

Firebase Analytics and Crashlytics data may be processed and stored by Google / Firebase according to Google’s practices and your Firebase project configuration.

Text submitted to AI features may be processed by OpenRouter and underlying model providers (currently including Google and OpenAI) to complete the request.

We use reasonable technical and organizational safeguards designed to protect information from unauthorized access, alteration, disclosure, or destruction.

However, no electronic storage, device, network, or transmission method is completely secure. We cannot guarantee absolute security.

You are responsible for maintaining the security of your Google account, device, and screen lock.

8. Data Retention

We retain information only for as long as reasonably necessary to:

Provide UniWord services

Maintain your account and synchronized data

Manage subscription entitlements

Measure and improve the product

Respond to support or legal requests

Prevent fraud or abuse

Comply with legal obligations

Account-linked learning data is generally retained while your account remains active, or until you delete the specific item or your account.

AI providers typically receive user-added text only to fulfill a request and are not used by us as a long-term store of your readings. They may retain limited logs according to their own policies.

PostHog analytics events are retained according to our PostHog project settings and as needed to understand product usage. We do not keep them for advertising profiles.

Firebase Analytics and Crashlytics data are retained according to Google / Firebase retention settings for our project and as needed for measurement, diagnostics, and product improvement.

If you request account deletion, we will delete or anonymize eligible account information and synchronized learning data, subject to reasonable processing time and any information we are legally required to retain. We will also request deletion or anonymization of associated PostHog person data to the extent supported by PostHog. Firebase Analytics and Crashlytics records may be deleted or become non-identifying according to Google / Firebase tools and retention cycles. Aggregated or de-identified analytics that no longer identify you may remain.

Some subscription transaction records may remain with Google Play or RevenueCat according to their legal, financial, fraud-prevention, and retention obligations.

Guest Mode learning data remains on your device until you clear the app’s data, uninstall the app, reset the device, or delete the data through available device or app controls.

Backups maintained by service providers may take additional time to expire through normal backup-retention cycles.

9. How We Share Information

We do not sell your personal information.

We may share or make information available only in the following circumstances:

Service Providers

We may use providers that help operate UniWord, including:

Google Sign-In

Supabase (authentication and cloud data storage)

Google Play Billing

RevenueCat

Google ML Kit

PostHog (product analytics)

Google Firebase (Analytics and Crashlytics)

OpenRouter and underlying AI model providers such as Google and OpenAI (translation and word-enrichment features)

Hosting and related infrastructure providers

These providers may process limited information to perform services on our behalf or provide their own platform services.

Legal Requirements

We may disclose information if reasonably necessary to:

Comply with applicable law or a valid legal request

Protect the rights, safety, and security of users, the public, or Multi_Software

Investigate fraud, abuse, or security incidents

Enforce applicable agreements

Business Changes

If UniWord or Multi_Software is involved in a merger, acquisition, restructuring, or transfer of assets, relevant information may be transferred as part of that transaction, subject to applicable law and appropriate protections.

10. Third-Party Services

UniWord may use or interact with the following third-party services:

Google Sign-In — account authentication

Supabase — authentication and cloud data storage, including synchronized learning data and user-added reading content

Google Play Billing — purchases, subscription billing, renewals, cancellations, and refunds

RevenueCat — subscription verification and entitlement management

Google ML Kit — OCR and on-device translation

PostHog — product analytics (EU cloud): https://posthog.com/privacy

Google Firebase Analytics — automatic install, session, and country/region metrics: https://firebase.google.com/support/privacy

Google Firebase Crashlytics — crash and stability reporting: https://firebase.google.com/support/privacy

OpenRouter — AI request routing: https://openrouter.ai/privacy

Google Gemini / Google AI — AI translation and enrichment when selected as a model

OpenAI — AI translation and enrichment when selected as a fallback model

Device speech-recognition services — voice typing and speech input

These providers may collect or process information under their own terms and privacy policies. We encourage you to review their privacy policies.

Multi_Software is not responsible for the independent privacy practices of third-party providers.

11. Purchases, Trials, and Subscriptions

UniWord Pro subscriptions are sold through Google Play.

Google Play handles:

Payment processing

Free-trial eligibility

Subscription activation

Automatic renewal

Plan changes

Cancellations

Billing issues

Refunds

RevenueCat helps verify your subscription status and maintain Pro entitlement information.

Prices, billing periods, available free trials, and renewal terms are displayed before purchase. Subscription offers may vary by country, account, eligibility, currency, and Google Play settings.

You can view or manage your subscription through Google Play.

Cancelling a subscription generally prevents future renewal but does not automatically create a refund for previous charges. Refund eligibility is determined by Google Play and applicable law.

12. Account Deletion and Data Requests

You may request permanent deletion of your UniWord account and eligible account-linked cloud data.

How to Request Deletion

You can request deletion in either of the following ways:

In the UniWord app (recommended):

Open the Profile tab.

Expand the Account section.

Tap Delete account.

Confirm the deletion.

When you delete your account from within the app while signed in, UniWord deletes your UniWord account and eligible synchronized cloud learning data (including user-added reading content and custom word lists stored in our cloud backend), then clears related local progress on that device. We also reset the local analytics identifier on that device and will request deletion or anonymization of associated PostHog person data to the extent supported by PostHog. Firebase Analytics and Crashlytics records may be handled according to Google / Firebase deletion and retention tools available for our project.

Outside the app (web / email):

If you have uninstalled UniWord, or cannot use the in-app option, you may submit a deletion request through:

Email: support@capstab.com

Support form: https://capstab.com/uniword/support

Where possible, send the request from the email address associated with your UniWord account. We may need to verify your identity before completing a request submitted by email or form.

Processing Time

In-app deletion: Eligible account and cloud data are generally deleted promptly after you confirm deletion in the app, subject to normal network and server processing time.

Email or support-form requests: After receiving and verifying a valid request, we aim to process account deletion within 24 to 48 hours. Complex or legally regulated requests may require additional time.

Data Removed

Account deletion may remove:

Your name

Email address

Profile photo reference

UniWord account identifier

Synchronized vocabulary and custom word lists

User-added reading texts, translations, and related glossaries stored in our cloud backend

Learning and revision progress

Grammar progress

Goals and account-linked settings

Other eligible account-linked learning data

Related learning progress stored locally on the device used to complete in-app deletion

Associated PostHog person records, to the extent we can delete or anonymize them through PostHog

Data Not Automatically Removed

Deleting your UniWord account may not automatically delete:

Google account information held by Google

Google Play purchase or transaction records

RevenueCat records that must be retained for legal, fraud-prevention, or subscription-verification purposes

Firebase Analytics or Crashlytics records retained by Google according to their tools and retention cycles until deleted or anonymized

Logs or residual copies held by AI providers according to their own policies

Aggregated or de-identified analytics

Information we are legally required to retain

Google Play subscriptions are not cancelled automatically when you delete your UniWord account. To stop future billing, manage or cancel your subscription in Google Play → Subscriptions.

Guest Mode data stored only on a device (without cloud sync) can generally be removed by clearing UniWord’s app data or uninstalling the app.

Sign-out vs Account Deletion

Signing out may remove or disconnect local data on that device. Signing out alone does not delete previously synchronized cloud data or historical analytics associated with your account. Use Delete account in the app, or submit an account-deletion request by email/support form, if you want eligible cloud data permanently removed.

13. Your Privacy Rights

Depending on your location, you may have rights regarding your personal information, including the right to:

Request access to your information

Request correction of inaccurate information

Request deletion

Request restriction of certain processing

Object to certain processing, including analytics based on legitimate interests

Request a portable copy of eligible information

Withdraw consent where processing is based on consent

Submit a complaint to an applicable data-protection authority

To exercise a privacy right, contact:

support@capstab.com

We may request reasonable verification before fulfilling a request.

These rights may be limited by applicable laws, security requirements, legal obligations, and legitimate record-retention needs.

14. International Data Processing

UniWord is available to users in multiple countries.

Our service providers may process or store information in countries other than the country where you live. For example:

Account and synchronized learning data may be processed by Supabase and related hosting providers

Product analytics are sent to PostHog’s EU cloud

Firebase Analytics and Crashlytics data may be processed by Google / Firebase in countries where Google operates, which may include the United States

AI translation and enrichment requests may be processed by OpenRouter and model providers that operate in multiple countries, including the United States

Privacy laws in those countries may differ from local laws.

Where required, we and our service providers use appropriate safeguards for international data transfers.

15. Children’s Privacy

UniWord is intended for users aged 13 years and older.

We do not knowingly collect personal information from children under 13. If we learn that personal information from a child under 13 has been collected without appropriate authorization, we will take reasonable steps to delete it.

If you are a parent or guardian and believe a child has provided personal information, contact:

support@capstab.com

Additional minimum-age or parental-consent requirements may apply in certain countries.

16. Website Preferences

The UniWord website may store limited preferences, such as light or dark theme selection, in browser local storage.

These preferences are used to remember your display settings and are not intended to identify you or link the preference to your UniWord app account.

If the website later begins using analytics, advertising, or non-essential cookies, this Privacy Policy and any required consent controls will be updated.

17. Links to Other Services

UniWord may contain links to third-party websites, applications, or services.

We are not responsible for the content, security, availability, or privacy practices of third-party services. Review the applicable policies before providing information to them.

18. Changes to This Privacy Policy

We may update this Privacy Policy to reflect:

Changes to UniWord features

Changes to service providers

Legal or regulatory requirements

Security or privacy improvements

When we update this Privacy Policy, we will revise the “Last Updated” date above.

If an update materially changes how we process personal information, we may provide additional notice where required.

19. Contact Us

For privacy questions, account-deletion requests, or support inquiries, contact:

Developer: Multi_Software

App: UniWord

Email: support@capstab.com

Website: https://capstab.com/uniword

Support: https://capstab.com/uniword/support