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Terms of Service

Last updated: April 3, 2026

1. Acceptance of Terms

By downloading, installing, accessing, or using The Last Will application ("the App"), you agree to be bound by these Terms of Service ("Terms"). If you do not agree to these Terms, do not download, install, or use the App. These Terms constitute a legally binding agreement between you ("User" or "you") and ZKidz Dev ("we," "us," or "our").

Your use of the App is also governed by our Privacy Policy, which is incorporated into these Terms by reference.

2. Description of Service

The Last Will is a fully offline encrypted vault application designed to help you organize and store information related to your wills, beneficiaries, assets, and sensitive documents. Key features of the App include:

  • Creating and managing will documents, beneficiary records, and asset inventories
  • Storing sensitive information in an encrypted on-device vault secured with AES-256-CBC encryption and PBKDF2-SHA256 key derivation
  • Exporting encrypted backup files in the proprietary .mlw format, each with an independent encryption key
  • Operating entirely offline with no cloud storage, no user accounts, and no internet connection required

The App is available as a one-time purchase for $24.99 USD from the Apple App Store and Google Play Store. There are no subscriptions, in-app purchases, or recurring fees.

3. License Grant

Subject to your compliance with these Terms, we grant you a limited, personal, non-commercial, non-exclusive, non-transferable, and revocable license to download, install, and use the App on devices that you own or control, solely for your personal use. This license does not include the right to:

  • Copy, modify, distribute, sell, lease, sublicense, or reverse-engineer the App or any portion thereof
  • Use the App for any commercial purpose or on behalf of any third party
  • Remove, alter, or obscure any proprietary notices, labels, or marks on the App
  • Attempt to derive the source code, algorithms, or underlying structure of the App

4. User Responsibilities

Because the App is fully offline and we have no access to your data, you bear sole responsibility for:

  • Remembering your security questions and answers. These are the only means of accessing your encrypted data. We cannot recover them for you under any circumstances.
  • Creating and maintaining backups. You should regularly export .mlw backup files and store them in a secure location. Loss of your device without a backup means permanent loss of your data.
  • Ensuring the accuracy of your content. The information you enter into the App, including will details, beneficiary designations, and asset records, is your responsibility to verify for accuracy and completeness.
  • Sharing exported files responsibly. If you choose to share .mlw files with attorneys, family members, or other parties, you are responsible for doing so through secure channels and for communicating the corresponding security answers only to intended recipients.
  • Keeping your device secure. The security of your data depends on the physical security of your device, your device passcode, and any biometric protections you have enabled.

5. Data Ownership

You own all data you create, enter, and store within the App. We do not collect, access, transmit, or store any of your data on our servers. Your data exists solely on your device and in any .mlw export files you create.

Because we have no access to your data, we cannot recover, retrieve, or reconstruct any data that is lost due to device failure, accidental deletion, forgotten security questions, or any other reason. You acknowledge and accept this limitation as a fundamental aspect of the App's privacy-first design.

6. Disclaimer: Not Legal Advice

The Last Will is a digital organizational tool. It is not a legal service and does not provide legal advice, legal representation, or legal counsel of any kind. The App does not guarantee that any document created within it constitutes a legally valid or enforceable will, trust, or estate planning document.

Wills and estate planning documents are subject to specific legal requirements that vary by jurisdiction, including but not limited to witness requirements, notarization, and formalities of execution. A document created in this App may not be legally binding without proper legal formalization.

We strongly recommend that you consult a qualified attorney or estate planning professional to ensure that your wishes are properly documented and legally enforceable in your jurisdiction. The App should be used as a complement to, not a replacement for, professional legal counsel.

7. Security Questions & Access

The App uses a question-based encryption system rather than traditional passwords. Your security question answers are used to derive an encryption key that protects all data within the App. This design means:

  • Your answers are never stored anywhere. Only a one-way verification hash is kept on your device.
  • If you forget your security question answers, we cannot help you recover access to your data. There is no password reset, no recovery email, and no support override.
  • This is an intentional security design choice to ensure that only you can access your sensitive information.
  • You are solely responsible for choosing memorable answers and for keeping a personal record of them in a secure location outside the App.

8. Export & Sharing

The App allows you to export your data as encrypted .mlw files. Each export file is encrypted with an independent key derived from security questions you set at the time of export. Regarding exported files:

  • You are responsible for the security and distribution of any exported files.
  • Once data is exported from the App, we have no control over and accept no responsibility for how that data is stored, transmitted, or used.
  • You should only share .mlw files and their corresponding security answers with trusted individuals through secure communication channels.
  • We are not responsible for unauthorized access to exported files that results from your sharing practices.

9. Intellectual Property

The App, including its design, source code, user interface, graphics, logos, icons, branding, the .mlw file format, and all related intellectual property, is and remains the exclusive property of ZKidz Dev. These Terms do not grant you any ownership interest in the App or its intellectual property.

"The Last Will," the App's logo, and all associated branding are trademarks of ZKidz Dev. You may not use these marks without our prior written permission.

10. Disclaimer of Warranties

THE APP IS PROVIDED ON AN "AS IS" AND "AS AVAILABLE" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, OR COURSE OF PERFORMANCE.

We do not warrant that:

  • The App will meet all legal requirements for will creation or estate planning in your jurisdiction
  • The App will operate uninterrupted, error-free, or free of harmful components
  • Any documents or data created within the App will be legally valid or enforceable
  • The encryption or security features of the App are impervious to all forms of attack or compromise
  • The App will be compatible with all devices, operating systems, or future platform updates

11. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL ZKIDZ DEV, ITS OFFICERS, DIRECTORS, EMPLOYEES, AGENTS, OR AFFILIATES BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, INCLUDING BUT NOT LIMITED TO:

  • Loss of data stored within the App or in exported files
  • Inability to access your data due to forgotten security questions or device failure
  • The legal validity, enforceability, or adequacy of any will or document created using the App
  • Any decisions made or actions taken based on information stored in the App
  • Any damages resulting from unauthorized access to your device or exported files
  • Loss of profits, goodwill, use, or other intangible losses arising from your use of or inability to use the App

IN NO EVENT SHALL OUR TOTAL LIABILITY TO YOU FOR ALL CLAIMS ARISING FROM OR RELATED TO THESE TERMS OR YOUR USE OF THE APP EXCEED THE AMOUNT YOU PAID FOR THE APP (USD $24.99).

12. Indemnification

You agree to indemnify, defend, and hold harmless ZKidz Dev, its officers, directors, employees, agents, and affiliates from and against any and all claims, damages, losses, liabilities, costs, and expenses (including reasonable attorneys' fees) arising out of or related to:

  • Your use of or inability to use the App
  • Any content you create, store, or export using the App, including the legal validity of wills or documents
  • Your violation of these Terms
  • Your violation of any rights of any third party, including intellectual property rights
  • Any claim that information stored or distributed through the App caused damage to a third party

13. Termination

We may update, modify, suspend, or discontinue the App or any part of it at any time, with or without notice, for any reason. We may also terminate or suspend your license to use the App if you violate these Terms.

In the event of discontinuation or termination, your locally stored data remains on your device and in any .mlw export files you have previously created. We have no ability to remotely delete or modify your local data. We recommend maintaining current backups at all times.

14. Modifications to Terms

We reserve the right to modify these Terms at any time. Updated Terms will be made available within the App or on our website at zkidzdev.com. The "Last updated" date at the top of this page indicates when the most recent changes were made.

Your continued use of the App after any modifications to these Terms constitutes your acceptance of the revised Terms. If you do not agree to the updated Terms, you must discontinue use of the App.

15. Governing Law

These Terms shall be governed by and construed in accordance with the laws of the jurisdiction in which ZKidz Dev operates, without regard to its conflict of law provisions. Any disputes arising under or in connection with these Terms shall be subject to the exclusive jurisdiction of the courts located in that jurisdiction.

16. Severability

If any provision of these Terms is found to be invalid, illegal, or unenforceable by a court of competent jurisdiction, that provision shall be enforced to the maximum extent permissible, and the remaining provisions of these Terms shall remain in full force and effect. The invalid provision shall be modified to the minimum extent necessary to make it valid and enforceable while preserving its original intent.

17. Entire Agreement

These Terms, together with our Privacy Policy, constitute the entire agreement between you and ZKidz Dev regarding your use of the App. These Terms supersede any prior agreements, communications, or understandings, whether written or oral, relating to the subject matter hereof.

No waiver of any provision of these Terms shall be deemed a further or continuing waiver of such provision or any other provision. Our failure to exercise or enforce any right or provision of these Terms shall not constitute a waiver of such right or provision.

18. Contact Us

If you have any questions, concerns, or feedback regarding these Terms of Service, please contact us: