PRIVACY POLICY

Last updated: April 7, 2026

This Privacy Policy explains how PDF AI Lab ("we", "us", or "our") collects, uses, discloses, and protects information in connection with Evolve and any related websites, applications, products, and services that link to this Privacy Policy (collectively, the "Services").

Evolve is an audio-first book summary product. The Services allow users to discover, play, and manage spoken book summaries. In current and upcoming versions, the Services may also allow users to create accounts, purchase subscriptions, receive notifications, and upload documents or other materials so we can generate summaries, audio content, or related outputs.

By accessing or using the Services, you acknowledge the practices described in this Privacy Policy.

1. Information We Collect

We may collect the following categories of information, depending on how you use the Services and which features are enabled in the version of the Services you use.

1.1 Information You Provide Directly

You may provide information to us when you:

  • create an account;
  • subscribe to a paid plan;
  • contact customer support;
  • respond to surveys or promotions;
  • upload documents, files, text, or other content;
  • save preferences, playlists, bookmarks, or other in-app settings.

This information may include your name, email address, account credentials, billing-related details, support communications, uploaded content, and any information you choose to provide.

1.2 Account, Subscription, and Transaction Information

If account creation, subscriptions, or purchases are available, we may collect information related to your account, plan, purchase history, renewal status, and transaction metadata. Payment card details are generally processed by our payment processors or app store partners and are not stored by us except as necessary for receipts, accounting, fraud prevention, or legal compliance.

1.3 Content and Inputs

If you upload documents, files, notes, text, or other materials to the Services, we may collect and process:

  • the files and content you upload;
  • metadata associated with those files, such as file name, file type, upload time, and size;
  • prompts, instructions, edits, or feedback you submit;
  • generated summaries, scripts, transcripts, audio, and related outputs.

We use this information to provide, maintain, improve, and secure the Services, including generating audio summaries and related features you request.

1.4 Device, Log, and Usage Information

We may automatically collect certain information about your device and use of the Services, such as:

  • device model, operating system, app version, language, time zone, and identifiers;
  • IP address, approximate region, network type, and crash or diagnostic data;
  • pages or screens viewed, session length, playback activity, feature usage, and referral information;
  • log data relating to access times, requests, and system activity.

1.5 Information from Third Parties

We may receive information from business partners, analytics providers, attribution providers, advertising partners, app stores, payment processors, or identity providers, including information needed to operate accounts, subscriptions, analytics, fraud prevention, and marketing.

If you choose to sign in through a third-party service in the future, we may receive information permitted by that service and your settings with that provider.

2. How We Use Information

We may use information we collect to:

  • provide, operate, maintain, and improve the Services;
  • create and manage accounts;
  • process subscriptions, payments, renewals, refunds, and related support;
  • generate, deliver, and personalize summaries, audio, recommendations, and other outputs;
  • process and store user uploads and generated content;
  • analyze usage, debug issues, and monitor performance;
  • protect the security and integrity of the Services;
  • detect, investigate, and prevent fraud, abuse, and other harmful activity;
  • communicate with you about product updates, support, and administrative matters;
  • send marketing or promotional messages where permitted by law;
  • comply with legal obligations and enforce our terms, policies, and rights.

3. Permissions and Access

The Services may request certain permissions depending on the features available in your version of the Services and your device platform.

3.1 Notifications

If enabled, we may request permission to send push notifications for service updates, reminders, new content, account notices, billing notices, or promotional communications. You can typically manage notification permissions in your device settings.

3.2 File or Document Access

If you choose to upload documents or other files, the Services may request access to files, folders, or storage locations that you specifically select through your device or operating system. We do not access unrelated files without your action.

3.3 Future Permissions

If we introduce features requiring additional permissions, such as microphone or media library access, we will request those permissions in accordance with applicable platform requirements and laws.

4. Advertising, Analytics, Attribution, and Similar Services

We may use third-party tools and services for analytics, attribution, crash reporting, performance monitoring, advertising, or marketing. Depending on which services are enabled in a given release, these providers may collect or receive information such as device identifiers, app instance identifiers, advertising identifiers, IP address, usage data, event data, diagnostics, and approximate location inferred from IP address.

These services may include, where enabled and applicable:

  • AdMob;
  • AppLovin;
  • Liftoff;
  • Facebook Audience Network;
  • Crashlytics;
  • Flurry Analytics;
  • AppsFlyer;
  • Facebook Pixel or related Meta measurement tools.

Some of these services may support personalized advertising, attribution measurement, audience building, fraud prevention, or campaign performance analysis. If we enable features that involve tracking or personalized advertising, we will seek any consent or authorization required under applicable law or platform rules before doing so.

5. Cookies and Similar Technologies

Our websites and certain third-party services may use cookies, SDKs, pixels, local storage, and similar technologies to remember preferences, measure performance, understand user behavior, and support analytics, attribution, and advertising.

You may be able to control cookies through your browser settings. On mobile devices, you may also be able to control certain advertising and tracking settings through system settings or platform permissions.

6. How We Share Information

We may share information in the following circumstances:

  • with vendors, contractors, and service providers that perform services on our behalf;
  • with payment processors, app stores, hosting providers, analytics providers, cloud storage providers, customer support tools, and security partners;
  • with advertising, attribution, or measurement partners, where enabled and permitted;
  • if you direct us to share information through your use of integrations or sharing features;
  • in connection with a merger, acquisition, financing, asset sale, or other corporate transaction;
  • to comply with law, legal process, or governmental requests;
  • to protect the rights, property, safety, and security of us, our users, or others.

We do not sell personal information in exchange for monetary payment in the ordinary sense of that term. However, some data sharing with advertising or analytics partners may be treated as a "sale," "sharing," or "targeted advertising" under certain laws.

7. Data Retention

We retain information for as long as reasonably necessary to provide the Services, fulfill the purposes described in this Privacy Policy, comply with legal obligations, resolve disputes, enforce agreements, and maintain security.

Retention periods may vary depending on the type of information, the sensitivity of the data, whether the information relates to an active account or subscription, and our legal or operational requirements.

8. Security

We use commercially reasonable administrative, technical, and organizational measures designed to protect information. However, no method of transmission over the Internet or electronic storage is completely secure, and we cannot guarantee absolute security.

9. International Data Transfers

Your information may be processed and stored in countries other than your own, including the United States, where data protection laws may differ from those in your jurisdiction.

10. Children's Privacy

The Services are not directed to children under 13, and we do not knowingly collect personal information from children under 13. If we learn that we have collected personal information from a child under 13 without appropriate authorization, we will take reasonable steps to delete it.

If you believe a child has provided us with personal information, please contact us at [email protected].

11. Your Rights and Choices

Depending on your location and applicable law, you may have rights regarding your personal information, such as the right to:

  • access, correct, or delete certain information;
  • withdraw consent where processing is based on consent;
  • object to or restrict certain processing;
  • opt out of certain marketing communications;
  • request information about certain data practices.

You may also have account controls within the Services to manage certain information and preferences.

12. Third-Party Services

The Services may contain links to or integrations with third-party websites, tools, payment services, content providers, or other services. Their privacy practices are governed by their own policies, not this Privacy Policy.

13. Changes to This Privacy Policy

We may update this Privacy Policy from time to time to reflect changes in the Services, legal requirements, or our practices. The updated version will be posted within the Services or otherwise made available to you, and the "Last updated" date will be revised accordingly.

14. Contact Us

If you have questions, comments, or requests regarding this Privacy Policy or our data practices, please contact us at:

[email protected]