Software End-User Licence Agreement

This End User License Agreement (the "EULA") is a binding legal contract between you ("you," "your") and Adblock Labs, Inc., 2810 N Church St, Unit 28339, Wilmington, DE 19802, United States ("Adblock Labs," "we," "us," "our"). This EULA governs your use of Adblock for Windows and any associated installer, updater, command-line tools, or background services that are bundled with the Software.

1. Acceptance and scope

This EULA governs your use of:

• Adblock for Windows — the desktop ad-blocking software we make available under the "Adblock" name (the "Software"); and
• Any associated installer, updater, command-line tools, or background services that are bundled with the Software.

This EULA does not govern your use of our adblocklabs.com websites or marketing landing pages, which are covered by the Privacy Policy and any website-specific terms we publish.

2. License grant

Subject to your continuous compliance with this EULA and (where applicable) your payment of all fees due, Adblock Labs grants you a personal, limited, non-exclusive, non-transferable, non-sublicensable, revocable license to:

• Install and run the Software on Windows computers that you own or control;
• Use the Software for your own personal, non-commercial purposes (or, where you have a Business or Team subscription, for the internal business purposes specified in your subscription plan); and
• Activate the Software on up to the number of devices permitted by your subscription plan or by the free-trial allowance.

You may deactivate a previously activated device through the in-application Manage Subscription screen and then activate a new device, subject to any rate limits we impose to prevent abuse.

2.1 Components installed on your computer

By installing the Software, you authorize Adblock Labs to install the following components:

• A background filtering service that performs network filtering, license validation, and update checks.
• A network driver that, while the filtering service is running, redirects outbound HTTP and HTTPS traffic from supported web browsers to the filtering service running on your computer. The driver does not redirect traffic from other applications.
• A local root certificate authority ("Adblock CA"). To filter ads and trackers carried inside encrypted HTTPS traffic, the filtering service performs local TLS inspection on your computer. It installs a self-signed root certificate into your computer's "Trusted Root Certification Authorities" store and uses it to issue short-lived, per-domain leaf certificates that your browser sees in place of each website's real certificate. All decryption and inspection happens entirely on your computer. The corresponding root-certificate private key is generated when the service starts, is held only in memory, and is destroyed when the service stops — it is never written to disk and never leaves your computer.

The Software does not transmit decrypted HTTPS traffic, URLs, request or response content, headers, cookies, or form data to Adblock Labs or any third party. See our Privacy Policy §4c for full detail on what is transmitted.

2.2 What the Software does not do

Adblock Labs commits that the Software:

• Does not inject advertising or sponsored content into the webpages you visit.
• Does not modify your browser settings — including your default search engine, homepage, or new-tab page — or your operating-system settings beyond what is required for the filtering functionality described in Section 2.1.
• Does not bundle other applications. Our installer installs only Adblock for Windows and its required components, downloaded from Adblock Labs servers.
• Does not download or execute code from origins other than Adblock Labs servers — with the narrow exception of filter-list bodies fetched directly from their upstream maintainers, as described in Section 7.
• Is distributed as a code-signed binary whose signature is issued by a code-signing authority that has verified our publisher identity.

3. Subscription, free trial, and automatic renewal

Adblock for Windows is available on a subscription basis. The pricing, currency, billing period, and specific features included in each plan are presented to you on the checkout page before you confirm your purchase.

3.1 Free trial

We may offer a time-limited free trial at our discretion. At the end of the trial period, the Software's premium features will deactivate unless you have started a paid subscription.

3.2 Auto-renewal — what you authorize

When you start a paid subscription, you authorize Adblock Labs and our payment processors (Chargebee Inc. and Stripe, Inc.) to charge your designated payment method on a recurring basis. Renewals will be charged at the renewal price disclosed at checkout, not at any discounted introductory price. If we change the renewal price, we will notify you by email at least 30 days before the change takes effect.

3.3 Your right to cancel

You can cancel your subscription at any time through:

• The in-application Subscription screen;
• The license-management portal accessible from the email we send you when you subscribe; or
• support@adblocklabs.com.

When you cancel, your subscription remains active for the rest of the billing period you have already paid for, and we will not charge you again.

3.4 Notices required by U.S. state automatic-renewal laws

If you are a resident of California, New York, Colorado, Oregon, Tennessee, or another U.S. state with an automatic-renewal law: the subscription will automatically renew at the cadence and price disclosed at checkout until you cancel. You may cancel at any time using the methods in Section 3.3. For California residents, in compliance with Cal. Bus. & Prof. Code § 17602, our acknowledgment email after each renewal will include the automatic-renewal terms and cancellation procedures.

4. Fees, taxes, and billing

4.1 Fees

You agree to pay all fees applicable to your subscription plan at the price disclosed to you at checkout. Prices are shown exclusive or inclusive of value-added tax depending on your country of residence.

4.2 Payment processors

Your payment is processed by Chargebee Inc. (subscription billing and hosted checkout) and Stripe, Inc. (card and payment-method processing). Card details are collected directly by these processors — we never see your full card number, CVV, or PIN.

4.3 Taxes

You are responsible for all sales, use, value-added, withholding, and similar taxes assessed on your subscription, except for taxes assessed on our net income.

4.4 Failed payments

If your payment method is declined, we will retry the charge over several days. If we cannot collect payment, your subscription will be suspended and premium features will deactivate until you provide a working payment method.

5. Refunds and cancellation

We offer a 30-day money-back guarantee on new subscriptions only. The 30-day window begins on the date of your initial purchase.

To request a refund, email support@adblocklabs.com within 30 days of your initial purchase, including your order number or the email used at checkout. Eligible refunds are returned to your original payment method within 5–10 business days.

Refunds are not provided for

• Renewals — auto-renewals or manual renewals of an existing subscription.
• Subscriptions purchased through a third-party reseller — refunds for these are handled by the reseller.
• Promotional or discounted plans purchased at a non-standard price (for example, through a seasonal sale, with a coupon code, or as part of a bundled offer).
• Subsequent purchases by a customer who has received a refund under this guarantee in the prior 24 months. This guarantee is available only once per customer in any rolling 24-month period.

Statutory rights

Nothing in this section limits any statutory right of withdrawal, cooling-off period, or refund you may have under applicable consumer-protection law (for example, the 14-day right of withdrawal under EU Directive 2011/83/EU and the UK Consumer Contracts Regulations 2013).

6. Restrictions

You agree that you will not, and will not allow any third party to:

1. 1.Reverse engineer, decompile, disassemble, or otherwise attempt to derive the source code of the Software, except to the extent expressly prohibited by applicable law.
2. 2.Modify, adapt, translate, or create derivative works of the Software or any portion of it.
3. 3.Rent, lease, lend, sell, sublicense, assign, distribute, publish, transfer, or otherwise make available the Software to any third party, except as expressly permitted by this EULA.
4. 4.Remove, obscure, or alter any proprietary notice (including any notice of copyright or trademark) of Adblock Labs or its licensors.
5. 5.Circumvent or attempt to circumvent any license-enforcement, activation, anti-piracy, or rate-limiting mechanism in the Software.
6. 6.Extract, scrape, or otherwise harvest filter lists, blocking rules, or other content distributed through the Software for the purpose of redistribution, building a competing commercial product, or training machine-learning models.
7. 7.Use the Software to interfere with, disrupt, or attempt to gain unauthorized access to any network, computer system, or service.
8. 8.Use the Software in any way that would cause us to violate our agreements with our suppliers (including Cloudflare, Inc., Keygen LLC, Chargebee Inc., Stripe, Inc., and HelpScout, Inc.).
9. 9.Use the Software in any safety-critical environment, including nuclear facilities, aircraft navigation, life-support systems, or any application where failure of the Software could lead to death, personal injury, or severe property damage.

7. Telemetry and filter-list updates

By installing and using the Software, you acknowledge that:

• The Software periodically transmits telemetry events describing the Software's lifecycle, license state, and update state to our servers, as described in our Privacy Policy, Section 4c. No URL, domain, IP address, or page content that you visit, request, or block is ever transmitted off your device by the Software.
• The Software periodically downloads filter-list updates from Adblock Labs servers and, for filter-list bodies, may fetch directly from the upstream filter-list maintainer's published URL.

You can stop all telemetry and filter-list traffic by uninstalling the Software. Some traffic is strictly necessary for the Software's operation (for example, the initial filter-list download, license validation, and update delivery) and cannot be disabled while the Software is installed.

8. Automatic software updates

The Software includes an automatic-update component that periodically checks Adblock Labs servers for new signed releases. By default, the Software will download and install signed updates automatically. Updates may add, change, or remove features; where an update materially reduces a feature you rely on, we will provide reasonable notice before the change takes effect.

You agree not to attempt to prevent the Software from checking for or applying updates by tampering with our certificates, our update endpoints, or our cryptographic verification logic.

9. Third-party software and open-source components

The Software incorporates third-party and open-source software components licensed under their own terms. A current list is available on request from legal@adblocklabs.com. Where any open-source component's license conflicts with this EULA, the open-source license governs your use of that component.

10. Intellectual property

The Software and all worldwide intellectual property rights in and to the Software — including all copyrights, patents, trademarks, trade secrets, and other proprietary rights — are and shall remain the exclusive property of Adblock Labs and its licensors. Nothing in this EULA transfers ownership of the Software or any associated intellectual property rights to you.

"Adblock," "Adblock Labs," and the Adblock Labs logo are trademarks of Adblock Labs, Inc. You are not granted any right to use these marks except as expressly permitted by a separate written agreement with us.

11. User feedback

You may, at your option, provide us with comments, suggestions, ideas, or feedback about the Software ("Feedback"). You grant us a perpetual, worldwide, royalty-free, irrevocable, non-exclusive license to use, modify, and incorporate the Feedback into our products and services without any obligation to you.

You agree that you will not include in any Feedback information you consider confidential, proprietary, or subject to a third-party non-disclosure obligation. We have no obligation to use any Feedback or to credit you for it.

12. Disclaimer of warranties

We do not warrant that:

• The Software will block every advertisement, tracker, or other piece of content you may wish to block;
• The Software will be uninterrupted, error-free, or secure;
• Filter lists or update servers will be continuously available;
• The Software will be compatible with all third-party software you may run on the same device; or
• Any errors in the Software will be corrected.

You use the Software at your own risk and are responsible for any damage to your device or data that results from your use.

Statutory consumer warranties preserved

If you are a consumer in the EEA, the UK, Switzerland, Australia, or another jurisdiction that grants non-excludable statutory warranties, nothing in this EULA limits or excludes those statutory rights.

13. Limitation of liability

Aggregate cap. Our total cumulative liability to you under this EULA — for any and all causes of action — is limited to the greater of (a) the fees you have actually paid to us in the 12 months preceding the event giving rise to the claim, and (b) US$100.

Carve-outs

The limitations in this Section 13 do not apply to (a) liability that cannot be excluded or limited under applicable law (including liability for death or personal injury caused by negligence, or for fraud or fraudulent misrepresentation), and (b) breach of Section 6 (Restrictions) and Section 16 (Export controls and sanctions).

14. Indemnification

You agree to defend, indemnify, and hold harmless Adblock Labs, its affiliates, and its and their respective officers, directors, employees, contractors, and agents from and against any claim, demand, loss, liability, or expense (including reasonable attorneys' fees) arising out of or related to:

• Your breach of this EULA or any policy referenced herein;
• Your use of the Software in violation of applicable law or any third party's rights; or
• Your use of the Software in any safety-critical environment described in Section 6(9).

15. Termination

This EULA is effective when you accept it and remains in effect until terminated.

Termination by you

You may terminate this EULA at any time by uninstalling the Software from all of your devices and (if you have a paid subscription) cancelling the subscription. When you uninstall, the uninstaller removes all Software components, reverts the system settings the Software changed, and removes the "Adblock CA" root certificate from your computer's Trusted Root Certification Authorities store. If your uninstaller did not perform the certificate removal, contact support@adblocklabs.com for manual removal steps.

Termination by us

We may suspend or terminate your license immediately and without notice if:

• You materially breach this EULA, including any of the restrictions in Section 6;
• Your payment method fails and we cannot collect payment after our standard retry period;
• We have a reasonable belief that you are using the Software fraudulently, abusively, or in a manner that disrupts our service or harms other users;
• We are required to do so by law or by a binding order of a competent authority; or
• We discontinue the Software, in which case we will provide reasonable advance notice and a pro-rated refund of any prepaid fees for the unused portion of your subscription term.

Surviving clauses

Sections 6, 10, 11, 12, 13, 14, 16, 18, and 19 survive termination of this EULA.

16. Export controls and sanctions

You acknowledge that the Software is subject to the export control and economic sanctions laws of the United States and other jurisdictions. You represent and warrant that:

• You are not located in, organized in, or a resident of any country or region that is the target of comprehensive U.S., EU, or UK sanctions (currently including Cuba, Iran, North Korea, Syria, and the Russian-occupied regions of Ukraine);
• You are not identified on the U.S. Treasury Department's Specially Designated Nationals and Blocked Persons List, the U.S. Commerce Department's Denied Persons List or Entity List, the EU Consolidated Financial Sanctions List, or the UK OFSI Consolidated List; and
• You will not export, re-export, or otherwise transfer the Software in violation of any applicable export control or sanctions law.

17. U.S. government end users

If you are a U.S. government end user, the Software is "commercial computer software" and the associated documentation is "commercial computer software documentation" as those terms are used in the Federal Acquisition Regulation and the Defense Federal Acquisition Regulation Supplement. The Software is licensed to U.S. government end users (a) only as a commercial item and (b) with only those rights granted to all other end users under the standard commercial license terms in this EULA.

18. Governing law and dispute resolution

18.1 Governing law

This EULA is governed by the laws of the State of Delaware, U.S.A., excluding its conflict-of-laws rules. The United Nations Convention on Contracts for the International Sale of Goods does not apply. If you are a consumer, nothing in this section deprives you of the protection afforded by mandatory provisions of the law of the country in which you have your habitual residence.

18.2 Informal dispute resolution

Before filing any formal dispute, you agree to first contact us at legal@adblocklabs.com with a brief written description of the dispute and the resolution you are seeking. We will attempt in good faith to resolve the dispute informally for at least 60 days after we receive your notice.

18.3 Binding arbitration and class-action waiver (U.S. residents only)

If you are a resident of the United States, you and Adblock Labs agree that any dispute arising out of or related to this EULA or the Software will be resolved by binding individual arbitration rather than in court, except as provided below.

• The arbitration will be administered by the American Arbitration Association under its Consumer Arbitration Rules, held in New Castle County, Delaware, or by videoconference at your option.
• You and we waive any right to participate in a class action, class arbitration, or representative proceeding. Arbitration will be conducted on an individual basis only.
• Small-claims carve-out: Either party may bring an individual claim in small-claims court, so long as the claim qualifies for that court's jurisdiction.
• IP carve-out: Either party may seek injunctive or other equitable relief in any court of competent jurisdiction to protect its intellectual-property rights.

18.4 Courts (rest of world)

For users who are not U.S. residents, and for U.S. users who have validly opted out of arbitration, any dispute arising under this EULA shall be brought exclusively in the federal and state courts located in New Castle County, Delaware, U.S.A. Nothing in this Section 18.4 limits any right you may have, as a consumer, to bring proceedings in the courts of the country in which you have your habitual residence.

19. General provisions

• Entire agreement. This EULA, together with our Privacy Policy and any plan-specific terms presented at checkout, is the entire agreement between you and Adblock Labs regarding the Software.
• Severability. If any provision of this EULA is held to be unenforceable, the remaining provisions remain in full force, and the unenforceable provision will be modified to the minimum extent necessary to make it enforceable.
• No waiver. Our failure to enforce any provision of this EULA is not a waiver of our right to enforce that provision later.
• Assignment. You may not assign or transfer this EULA without our prior written consent. We may assign this EULA to an affiliate or in connection with a merger, acquisition, or sale of all or substantially all of our assets.
• Force majeure. Neither party is liable for any failure or delay in performance caused by events beyond its reasonable control, including acts of God, war, terrorism, internet outages, or pandemic-related restrictions. Payment obligations are not excused under this clause.
• Notices. We will provide notices by email to the address associated with your account or via in-app notice. You will provide notices to us at legal@adblocklabs.com.
• Electronic signatures. Your acceptance of this EULA by clicking "I Agree" (or any equivalent electronic affirmation) has the same legal effect as a handwritten signature.

20. Changes to this EULA

We may update this EULA from time to time. When we do, we will:

• Update the "Last updated" date at the top of this document.
• For changes that materially reduce your rights or materially increase your obligations, provide at least 30 days' advance notice by email and / or through an in-app notice. Your continued use of the Software after the new EULA takes effect constitutes acceptance of the changes.

The current version of this EULA is always available at https://adblocklabs.com/software-eula.

21. Contact

Legal and EULA-related questions

• Email: legal@adblocklabs.com
• Post: Attn: Legal, Adblock Labs, Inc., 2810 N Church St, Unit 28339, Wilmington, DE 19802, United States

Billing, refunds, and subscription support

• Email: support@adblocklabs.com
• In-app: use the Help screen in Adblock for Windows

Privacy questions

See the Privacy Policy.