Retainory Start Retaining Free

Terms of Service

Last updated: 12 August 2026

These Terms of Service ("Terms") are a binding agreement between you and Mauricio Salinas, an individual operating Retainory ("Retainory," "we," "us," or "our").

These Terms govern your access to and use of the Retainory mobile application, its features, and related services.

The Retainory application is distributed through Apple's App Store. Your license to the application is also subject to Apple's applicable Standard End User License Agreement and other applicable Apple terms. These Terms supplement, and do not replace, Apple's terms. If these Terms conflict with Apple's Standard EULA regarding your license to the application, Apple's Standard EULA controls as to that license.

By downloading, installing, accessing, or using Retainory, you agree to these Terms. If you do not agree, do not use Retainory.

1. Retainory

Retainory is a study and spaced-repetition application designed to help users create, organize, and review flashcards.

Retainory currently allows eligible users to:

Retainory's review scheduling uses an FSRS-based spaced-repetition system that operates on-device.

Certain features, including AI-powered flashcard generation, require an internet connection and access to Retainory's backend and third-party services.

We may add, modify, replace, restrict, suspend, or discontinue features from time to time.

Nothing in these Terms guarantees that any particular feature, AI model, algorithm, interface, service provider, generation limit, or functionality will remain available indefinitely.

2. Age requirements

You must be at least 13 years old to use Retainory.

Users under 13

Retainory is not intended for children under 13.

If you are under 13, you may not use Retainory.

Users ages 13 through 17

If you are between 13 and 17 years old, you may use eligible manual study features of Retainory, including manually creating and reviewing flashcards and using supported on-device spaced-repetition functionality.

You may not use Retainory's AI-powered flashcard generation features.

If you are under the age of legal majority where you live, you represent that you have permission from your parent or legal guardian to use Retainory. To the extent required by applicable law, your parent or legal guardian must agree to these Terms on your behalf.

Users age 18 and older

Users who are 18 years of age or older may use manual Retainory features and, subject to these Terms, availability, and applicable restrictions, AI-powered functionality.

Retainory may use an age eligibility screen to determine which features are available to you.

You agree to provide truthful age information.

Attempting to circumvent an age restriction, manipulate age eligibility, or otherwise gain unauthorized access to an age-restricted feature violates these Terms.

3. License and Apple Standard EULA

Retainory is licensed, not sold.

Subject to these Terms and Apple's applicable terms, you receive a limited, personal, revocable, non-exclusive, non-transferable, and non-sublicensable right to use Retainory for lawful personal purposes on Apple devices on which Apple permits you to use the application.

Your license to the Retainory application through the App Store is governed by Apple's applicable Standard End User License Agreement unless Apple or Retainory expressly provides otherwise through the App Store.

These Terms govern the Retainory service and your relationship with Retainory in addition to Apple's license terms.

Nothing in these Terms grants you ownership of Retainory or any part of its software, infrastructure, branding, technology, or intellectual property.

Except where applicable law or an applicable open-source license expressly permits otherwise, you may not:

4. No account and local study data

Retainory currently does not require user accounts or sign-in.

Your ordinary study data, including saved objectives, flashcards, review history, ratings, scheduling state, and app settings, is stored locally on your device under Retainory's current architecture.

Retainory does not provide a Retainory-hosted cloud backup, synchronization, account recovery, or study-data restoration service.

You are responsible for maintaining your device and your locally stored study data.

Deleting Retainory, losing or erasing your device, resetting your device, corruption of local application storage, or other loss of local data may permanently destroy your study data.

Retainory cannot recover study data that no longer exists on your device.

You agree that Retainory has no obligation to reconstruct, restore, or recover lost local study data.

Any backup, synchronization, or device-restoration functionality independently provided by Apple or another third party is outside Retainory's control and subject to that provider's terms.

5. AI-powered flashcard generation

Eligible users may submit text or supported documents to Retainory for AI-assisted flashcard generation.

When you intentionally initiate a generation request, the material you submit is transmitted to Retainory's backend and may be processed through third-party artificial intelligence infrastructure used by Retainory.

Retainory currently uses Google's Gemini API for AI-assisted flashcard generation.

Our Privacy Policy explains how submitted content and related technical information are processed.

Use of AI generation is subject to:

Retainory may deny, limit, suspend, or discontinue AI generation at any time.

6. AI-generated content is not guaranteed correct

IMPORTANT: AI-GENERATED FLASHCARDS CAN BE WRONG.

Flashcards generated through Retainory may contain inaccurate, incomplete, outdated, misleading, inconsistent, fabricated, or incorrectly interpreted information.

Generative AI systems may provide information that appears confident and authoritative even when it is incorrect.

You are responsible for reviewing generated flashcards and comparing them with your original source material and other authoritative sources before relying on them.

Do not assume that a flashcard is correct merely because Retainory generated it.

Retainory does not guarantee:

Retainory is a study tool. It is not a replacement for your own judgment, studying, reading, instruction, tutoring, instructor guidance, or verification of source material.

7. No professional advice

Retainory does not provide medical, mental-health, legal, financial, investment, tax, or other professional advice.

Retainory also does not provide authoritative academic or institutional advice concerning matters such as:

You should consult an appropriate qualified professional, educational institution, instructor, or authoritative source when professional or official guidance is required.

Do not make significant medical, legal, financial, safety, academic-integrity, or similar decisions solely on the basis of Retainory-generated content.

8. Spaced repetition and academic performance

Retainory uses spaced-repetition techniques intended to assist users in organizing study and review.

Individual learning, memory, retention, and academic performance vary substantially.

A scheduled review time does not guarantee that you will remember particular material.

A difficulty estimate does not guarantee the actual difficulty of a question, topic, examination, or course.

Retainory's scheduling calculations and recommendations are tools, not promises of performance.

You remain responsible for deciding what to study, when to study, and whether additional preparation is necessary.

9. Your content

"Submitted Content" means text, PDFs, notes, excerpts, documents, course materials, or other material that you submit through Retainory.

You retain whatever rights you already possess in your Submitted Content.

Retainory does not acquire ownership of Submitted Content merely because you use it with the Service.

By submitting content, you represent and warrant that:

  1. you own the content or otherwise have the rights and permissions necessary to submit and process it;
  2. Retainory's processing of the content as requested by you will not infringe or misappropriate another person's intellectual-property rights;
  3. your submission does not violate applicable law;
  4. you have the right to disclose any confidential information contained in it;
  5. you will not submit material in violation of another person's privacy or contractual rights; and
  6. you will not knowingly submit unlawful material.

Educational use does not automatically give you permission to copy, upload, or process copyrighted material. Exceptions such as fair use are fact-specific.

You are responsible for determining whether you have the right to submit third-party material.

10. Limited license to process submitted content

By submitting content for AI generation, you grant Retainory a limited, non-exclusive, worldwide, royalty-free license to receive, reproduce, transmit, format, and process that content only as reasonably necessary to:

This license does not authorize Retainory to sell your Submitted Content, publicly redistribute it, or use it for advertising.

Under Retainory's current architecture, Retainory does not use your Submitted Content to train a Retainory-owned generative AI model.

Third-party processing of submitted content is described in Retainory's Privacy Policy.

11. Generated flashcards

As between you and Retainory, Retainory does not claim exclusive ownership of flashcards generated specifically in response to your Submitted Content.

Subject to applicable law and third-party rights, you may use generated flashcards for lawful study and personal purposes.

AI-generated material is not guaranteed to be unique.

The same or substantially similar material may be generated for other users.

Nothing in these Terms guarantees that generated content is eligible for copyright protection or that your use of generated content cannot implicate third-party rights.

You are responsible for your use of generated content.

12. Sensitive and confidential information

Retainory is designed for study material.

Do not submit information that you do not need for the generation request or information that you are not authorized to disclose.

In particular, you should avoid submitting highly sensitive or confidential information such as:

If you voluntarily include sensitive information in material submitted for generation, it may be processed as part of that generation request.

Our Privacy Policy provides additional information regarding processing and retention.

13. Acceptable use

You may use Retainory only for lawful purposes and in accordance with these Terms.

You may not:

We may restrict or block activity that we reasonably believe violates these Terms or threatens the Service, our providers, our infrastructure, other users, or third parties.

14. Security and anti-abuse controls

Retainory may use technical measures intended to protect its systems and maintain fair access to limited services.

These may include:

You may not interfere with or circumvent these systems.

Retainory does not guarantee that any security system is completely effective or that unauthorized access, bugs, vulnerabilities, or service abuse can never occur.

15. Availability and service limits

Retainory is provided without a service-level agreement.

We do not guarantee uninterrupted or continuous availability.

AI generation depends on network connectivity, Retainory's backend, third-party cloud infrastructure, and third-party AI services.

Generation may be unavailable because of:

Retainory may impose or modify per-request, per-device, per-installation, per-IP, daily, global, or other usage limits.

You are not guaranteed a particular number of AI generations.

Existing locally stored flashcards and supported on-device review functionality may continue to work without AI generation or backend availability.

16. Third-party services

Retainory depends on services provided by third parties.

These currently include Apple and Google infrastructure and services.

Third-party services may be governed by their own terms, policies, restrictions, and availability requirements.

Retainory does not control the operation of independent third-party services.

A third-party provider may change, suspend, restrict, or discontinue its service.

To the maximum extent permitted by law, Retainory is not responsible for losses caused solely by a third-party service outage, restriction, discontinuation, or other event outside Retainory's reasonable control.

17. Apple App Store

Retainory is distributed through Apple's App Store.

Apple is not a party to these Terms between you and Retainory.

Your acquisition and use of the Retainory application through the App Store are also governed by Apple's applicable terms, including Apple's Standard End User License Agreement where applicable.

These Terms do not expand or reduce rights and obligations imposed directly by Apple.

Retainory, not Apple, is responsible for Retainory's own online service, support communications, and content to the extent required by applicable law.

Apple independently controls the App Store, Apple accounts, Apple devices, and Apple services.

You must comply with applicable Apple terms when using Retainory.

18. Current free service and future paid features

Retainory is currently offered without a purchase price, paid subscription, or advertising.

We may introduce paid features, subscriptions, or other paid functionality in the future.

Before you authorize a future purchase, applicable pricing and material billing terms will be disclosed.

Where required by Apple's rules, purchases of digital features or subscriptions offered within Retainory will be processed using Apple's In-App Purchase system.

Purchases made through Apple may also be subject to Apple's billing, subscription, cancellation, and refund rules.

Additional terms may apply to future paid functionality where disclosed before purchase or use.

The existence of dormant or unshipped paid-feature code does not authorize Retainory to charge you.

19. Retainory intellectual property

Except for Submitted Content, generated material as described above, third-party material, and open-source components, Retainory and its licensors retain all right, title, and interest in the Retainory application and Service.

This includes, as applicable:

No license to Retainory's trademarks, branding, or other intellectual property is granted except for the limited right to use the application and Service under these Terms.

20. Open-source and third-party software

Retainory may include or depend upon software distributed under open-source or third-party licenses.

Those components are governed by their applicable licenses.

Where an applicable open-source license gives you rights that conflict with a restriction in these Terms, the open-source license controls with respect to that component.

21. Feedback

If you voluntarily provide suggestions, ideas, feature requests, bug reports, comments, or other feedback concerning Retainory, you grant Retainory a perpetual, irrevocable, worldwide, royalty-free, transferable, and sublicensable right to use that feedback for any lawful purpose without compensation or obligation to you.

This provision does not give Retainory ownership of study material you submit for flashcard generation.

22. Privacy

Retainory's handling of information is described in the Retainory Privacy Policy, available through the application and on retainory.com.

The Privacy Policy should be read together with these Terms.

These Terms do not eliminate or reduce privacy rights that applicable law makes non-waivable.

23. Copyright complaints

Retainory is not designed as a public user-content hosting or social-sharing service.

Material submitted for generation is not intentionally made available to other Retainory users through a public repository.

If you nevertheless believe that material provided by Retainory itself infringes your copyright or other intellectual-property rights, contact support@retainory.com.

Please provide enough information for us to identify and investigate the issue, including:

24. Disclaimers

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, RETAINORY, THE APPLICATION, AI GENERATION, GENERATED CONTENT, SPACED-REPETITION FEATURES, AND RELATED SERVICES ARE PROVIDED "AS IS," "AS AVAILABLE," AND "WITH ALL FAULTS."

TO THE MAXIMUM EXTENT PERMITTED BY LAW, RETAINORY DISCLAIMS ALL EXPRESS, IMPLIED, AND STATUTORY WARRANTIES, INCLUDING WARRANTIES OF:

Retainory does not warrant that:

No oral or written statement, marketing material, support response, website content, or other communication creates a warranty unless Retainory expressly identifies it as a warranty.

Some jurisdictions do not allow certain warranty disclaimers.

Nothing in these Terms excludes a warranty, remedy, or consumer right that applicable law does not permit us to exclude.

25. Limitation of liability

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, MAURICIO SALINAS, RETAINORY, AND ANY AFFILIATES, CONTRACTORS, AGENTS, LICENSORS, SERVICE PROVIDERS, SUCCESSORS, OR ASSIGNS WILL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, PUNITIVE, OR CONSEQUENTIAL DAMAGES ARISING OUT OF OR RELATING TO RETAINORY OR THESE TERMS.

TO THE MAXIMUM EXTENT PERMITTED BY LAW, THIS INCLUDES LOSS OR DAMAGE ASSOCIATED WITH:

This limitation applies whether a claim is based on contract, tort, negligence, strict liability, statute, or another legal theory, even if Retainory was advised that the damage could occur.

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE TOTAL AGGREGATE LIABILITY OF MAURICIO SALINAS AND RETAINORY ARISING OUT OF OR RELATING TO RETAINORY, THE SERVICE, OR THESE TERMS WILL NOT EXCEED THE GREATER OF:

  1. THE TOTAL AMOUNT YOU ACTUALLY PAID DIRECTLY FOR RETAINORY DURING THE 12 MONTHS IMMEDIATELY BEFORE THE EVENT GIVING RISE TO THE CLAIM; OR
  2. US $100.

The limitations in this section apply even if a limited remedy fails of its essential purpose, to the maximum extent permitted by law.

Nothing in these Terms excludes or limits liability that applicable law does not allow to be excluded or limited.

Depending on applicable law, this may include certain liability involving fraud, intentional misconduct, gross negligence, personal injury, statutory consumer protections, or other non-waivable rights.

26. Indemnification

To the extent permitted by applicable law, you agree to indemnify, defend, and hold harmless Mauricio Salinas and Retainory, together with their contractors, agents, licensors, service providers, successors, and assigns, from third-party claims, damages, liabilities, judgments, losses, and reasonable costs arising out of or relating to:

Retainory may control the defense and settlement of a covered claim.

You agree to provide reasonable cooperation.

Retainory will not settle a claim in a manner that imposes a material non-monetary obligation on you without your consent unless applicable law permits otherwise.

This provision does not require you to indemnify Retainory for liability caused solely by Retainory's own conduct where such an indemnity would be prohibited by law.

27. Suspension and termination

You may stop using Retainory at any time.

You may terminate your use of the application by deleting it from your device.

Retainory may suspend, restrict, or terminate access to network-dependent functionality if we reasonably determine that:

Because Retainory does not maintain ordinary user accounts, restriction may consist of refusing network requests or limiting access to particular online features.

Termination does not require Retainory to restore or retain local study data.

Provisions that by their nature should survive termination will survive, including provisions concerning intellectual property, Submitted Content, disclaimers, limitation of liability, indemnification, governing law, disputes, and general contractual terms.

28. Export controls and sanctions

You may use Retainory only in compliance with applicable United States export-control, sanctions, and trade laws and the laws applicable where you use the application.

You represent and warrant that you are not:

You may not use, export, re-export, transfer, or provide Retainory in violation of applicable export-control or sanctions laws.

You also agree not to use Retainory for purposes prohibited by United States law, including prohibited activities involving the development, design, manufacture, or production of nuclear, missile, chemical, or biological weapons.

29. U.S. Government users

To the extent applicable, Retainory and related documentation are commercial computer software and commercial computer software documentation.

U.S. Government end users receive only those rights granted to other end users under these Terms and applicable license terms, consistent with applicable federal procurement law.

30. Changes to Retainory

Retainory may evolve over time.

We may:

Where applicable law requires advance notice or additional consent for a particular change, we will comply with those requirements.

31. Changes to these Terms

We may update these Terms to reflect:

When these Terms change, we will update the "Last updated" date.

For material changes, we will provide reasonable notice through Retainory, retainory.com, or another appropriate method before the changes take effect where required or reasonably practicable.

If applicable law requires affirmative consent to a change, the change will not apply to you until that consent is obtained.

Your continued use of Retainory after revised Terms become effective constitutes acceptance of the revised Terms to the extent permitted by law.

If you do not agree to revised Terms, stop using Retainory.

32. Governing law

These Terms and any dispute arising out of or relating to Retainory, the Service, or these Terms are governed by the laws of the State of Illinois, without regard to Illinois conflict-of-law principles, except where federal law applies.

This choice of law does not deprive you of mandatory consumer protections that the law of your place of residence does not allow to be waived by contract.

The United Nations Convention on Contracts for the International Sale of Goods does not apply.

33. Disputes and court jurisdiction

These Terms do not require mandatory arbitration.

Subject to any non-waivable right you may have under applicable law to bring a claim elsewhere, you and Retainory agree that disputes arising out of or relating to these Terms or Retainory may be brought in the state courts located in Chicago, Illinois, or the United States District Court serving Chicago, Illinois, where federal jurisdiction exists.

You and Retainory consent to personal jurisdiction in those courts to the extent permitted by law.

Nothing in these Terms prevents either party from bringing an eligible claim in small-claims court.

Nothing in these Terms eliminates any right to a forum that applicable law makes non-waivable.

34. Informal resolution of disputes

Before filing a lawsuit, we encourage you to contact Retainory and attempt to resolve the issue informally.

Legal dispute notices to Retainory may be sent to support@retainory.com, with the subject line Legal Dispute Notice.

The notice should reasonably describe:

This informal process does not prevent either party from seeking urgent court relief or filing a claim where waiting would cause a claim to expire under an applicable statute of limitations.

35. General terms

Entire agreement

These Terms, Retainory's Privacy Policy, Apple's applicable Standard EULA, and any additional terms expressly presented for a particular feature or purchase constitute the applicable agreements governing your use of Retainory.

Nothing in these Terms overrides a non-waivable right under applicable law.

Order of precedence

These Terms govern Retainory's Service.

Apple's applicable terms govern matters controlled by Apple, including the App Store and the license granted through Apple's distribution platform.

Where these Terms and Apple's Standard EULA directly conflict regarding the app license, Apple's applicable license terms control.

Severability

If a provision of these Terms is held invalid or unenforceable, the provision will be enforced to the maximum extent permitted by law and the remaining provisions will remain in effect.

No waiver

A failure to enforce any provision of these Terms is not a waiver of the right to enforce it later.

Assignment

You may not assign or transfer these Terms or your rights under them without Retainory's prior written consent.

Mauricio Salinas may assign these Terms and the Retainory business to a company or other legal entity formed to operate Retainory, or in connection with a merger, acquisition, financing, sale, reorganization, transfer of substantially all Retainory assets, or operation of law, subject to applicable law.

If Retainory is later transferred to or operated by a separate legal entity, these Terms may be updated to identify that entity as the contracting party.

No agency

These Terms do not create a partnership, employment relationship, joint venture, franchise, fiduciary relationship, or agency relationship between you and Retainory.

Force majeure

To the extent permitted by applicable law, Retainory is not liable for delay or failure caused by circumstances beyond its reasonable control, including internet failures, cloud-provider failures, AI-provider outages, governmental action, natural disasters, widespread infrastructure failures, labor disputes, cyberattacks by third parties, or similar events.

No third-party beneficiaries

Except to the extent rights arise under Apple's own applicable agreements or applicable law, these Terms do not create enforceable rights for third parties.

Headings

Headings are provided for convenience and do not affect interpretation of these Terms.

36. Contact

Retainory is operated by:

Mauricio Salinas
Individual operator of Retainory
Chicago, Illinois, United States

Questions, complaints, or claims concerning Retainory may be sent using the contact information above.