Terms of Use and Legal Disclaimer

Last Updated: June 16, 2026

Welcome to A/B Test Pro (available at abtestpro.com). By accessing or using our website, statistical calculation tools, and related services (collectively, the "Service"), you agree to be bound by these Terms of Use ("Terms"). If you do not agree to these Terms, you must not access or use the Service.

1. Description of Service

A/B Test Pro provides web-based statistical calculation tools, including A/B test duration calculators, sample size calculators, and statistical significance checkers, designed for digital marketers, product managers, and data analysts.

2. "As-Is" Provision and Disclaimer of Warranties

2.1. Informational Purposes Only: The tools, calculations, and statistical models provided by A/B Test Pro are for informational and educational purposes only.

2.2. No Warranties: THE SERVICE IS PROVIDED ON AN "AS IS" AND "AS AVAILABLE" BASIS. A/B TEST PRO EXPRESSLY DISCLAIMS ALL WARRANTIES OF ANY KIND, WHETHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.

2.3. Accuracy of Models: While we strive to provide useful statistical calculation tools, we do not warrant or guarantee the absolute accuracy, completeness, reliability, or validity of any statistical models, algorithms, or outputs generated by the Service. Variables in real-world testing environments often deviate from theoretical models.

3. Not Professional Advice

The outputs, calculations, and data generated by A/B Test Pro do not constitute professional statistical, financial, legal, or business management advice. You should not act or refrain from acting on the basis of any output from the Service without independently verifying the data and, where applicable, seeking the advice of a qualified professional.

4. Limitation of Liability for Business Decisions

4.1. User Responsibility: You acknowledge and agree that you are solely responsible for any strategic, financial, marketing, or operational decisions you make based on the outputs generated by A/B Test Pro.

4.2. Exclusion of Damages: TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL A/B TEST PRO, ITS FOUNDERS, AFFILIATES, OR AGENTS BE LIABLE FOR ANY INDIRECT, PUNITIVE, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES.

4.3. Specific Exclusions: This comprehensive limitation of liability includes, but is not limited to, damages for:

  • Lost revenue or lost actual or anticipated profits.
  • Failed, underperforming, or miscalculated marketing campaigns.
  • Misallocation of business resources or marketing spend.
  • Loss of goodwill or business reputation.
  • Any other business outcomes resulting from the use or inability to use the Service.

4.4. Liability Cap and Non-Excludable Rights: To the maximum extent permitted by law, our total aggregate liability for any claim relating to the Service shall not exceed CAD $100. Nothing in these Terms excludes or limits any liability that cannot be excluded or limited under applicable law, including liability for fraud or your non-waivable statutory consumer rights.

5. Intellectual Property Rights

5.1. Our Content: The software, source code, user interface, visual design, written guides, and other original content of A/B Test Pro are the exclusive property of A/B Test Pro and are protected by intellectual property laws. The underlying statistical methods are standard, publicly available techniques that we do not claim as proprietary, and which we document openly in our learn guides.

5.2. Prohibited Actions: You are strictly prohibited from:

  • Reverse engineering, decompiling, or disassembling the Service's software.
  • Scraping, framing, or utilizing any automated means (including bots or spiders) to access, copy, or monitor any portion of the Service.
  • Copying, reproducing, or redistributing our software, source code, visual design, or written content to build a competing product.

6. Data Privacy and Calculation Inputs

6.1. Local Processing of Inputs: The calculators process your numeric inputs (such as estimated audience sizes, baseline conversion rates, and desired lift) entirely within your browser to generate mathematical outputs. These inputs are not transmitted to, retained by, or stored on our servers.

6.2. No System of Record: The Service is not intended to serve as a system of record for your business metrics; we do not save your calculations between sessions. For details on how we handle data, see our Privacy Policy.

7. Indemnification

You agree to defend, indemnify, and hold harmless A/B Test Pro from and against any claims, liabilities, damages, judgments, awards, losses, costs, expenses, or fees (including reasonable attorneys' fees) arising out of or relating to your violation of these Terms or your use of the Service, including, but not limited to, any business decisions or marketing actions taken based on the Service's outputs.

8. Governing Law and Jurisdiction

8.1. Governing Law: These Terms, and any dispute or claim arising out of or in connection with them or their subject matter, shall be governed by and construed in accordance with the laws of the Province of Ontario and the federal laws of Canada applicable therein, without giving effect to any choice or conflict of law provision or rule.

8.2. Exclusive Jurisdiction: Any legal suit, action, or proceeding arising out of, or related to, these Terms or the Service shall be instituted exclusively in the courts of the Province of Ontario, located in the City of Toronto. You waive any and all objections to the exercise of jurisdiction over you by such courts and to venue in such courts.

8.3. Mandatory Local Law: Nothing in this section deprives you of the protection of the mandatory consumer-protection laws of your country of residence, or of any right to bring proceedings in your local courts where such laws so require.

9. Modifications to the Service and Terms

We reserve the right to modify, suspend, or discontinue, temporarily or permanently, the Service (or any part thereof) with or without notice. We may also revise these Terms from time to time. The most current version will always be posted on our website. By continuing to access or use the Service after those revisions become effective, you agree to be bound by the revised Terms.

10. Severability

If any provision of these Terms is held by a court of competent jurisdiction to be invalid, illegal, or unenforceable for any reason, such provision shall be eliminated or limited to the minimum extent such that the remaining provisions of the Terms will continue in full force and effect.

11. Entire Agreement

These Terms constitute the sole and entire agreement between you and A/B Test Pro regarding the Service and supersede all prior and contemporaneous understandings, agreements, representations, and warranties, both written and oral, regarding the Service.

12. Contact Information

If you have any questions, concerns, or require legal notices regarding these Terms, please contact us at:

A/B Test Pro
Email: contact@abtestpro.com