End user licence agreement

Last updated October 6, 2026

SacketChatty is licensed to You (End-User) by Francesco Sacco, the developer of the application ('Licensor'), for use only under the terms of this Licence Agreement.

By downloading the Licensed Application from Apple's software distribution platform ('App Store'), and any update thereto (as permitted by this Licence Agreement), You indicate that You agree to be bound by all of the terms and conditions of this Licence Agreement, and that You accept this Licence Agreement. The App Store is referred to in this Licence Agreement as the 'Services'.

The parties of this Licence Agreement acknowledge that the Services are not a Party to this Licence Agreement and are not bound by any provisions or obligations with regard to the Licensed Application, such as warranty, liability, maintenance and support thereof. The Licensor, not the Services, is solely responsible for the Licensed Application and the content thereof.

This Licence Agreement may not provide for usage rules for the Licensed Application that are in conflict with the latest Apple Media Services Terms and Conditions ('Usage Rules'). The Licensor acknowledges that it had the opportunity to review the Usage Rules and this Licence Agreement is not conflicting with them.

SacketChatty when purchased or downloaded through the Services, is licensed to You for use only under the terms of this Licence Agreement. The Licensor reserves all rights not expressly granted to You. SacketChatty is to be used on iPhone devices that operate with Apple's operating system ('iOS').

The application
Scope of licence
Technical requirements
Maintenance and support
Use of data
User-generated contributions
Contribution licence
Liability
Warranty
Product claims
Legal compliance
Contact information
Termination
Third-party terms of agreements and beneficiary
Intellectual property rights
Applicable law and jurisdiction
Miscellaneous

1. The application

1.1 SacketChatty ('Licensed Application') is a messaging application for iPhone devices ('Devices'). Messages and attachments are encrypted end-to-end on the Device, and every connection to a server travels through the Tor network to an onion service run inside the application.

1.2 The Licensed Application works only together with the servers operated by the Licensor ('Servers'). The Servers are operated exclusively by the Licensor. Access to a Server requires the connection details (onion address and access key) that the Licensor provides.

1.3 The Licensor may make available a public test server ('Test Server') for the sole purpose of evaluating the Licensed Application. The Test Server is reset every ten (10) days: on each reset, all accounts, messages, attachments and any other data stored on it are permanently deleted, without notice. The Test Server is provided without any guarantee of availability, continuity or data retention, and must not be used for communications You need to keep.

1.4 The Licensed Application contains no advertising.

1.5 You must be at least 16 years old to use the Licensed Application. The Licensor may close accounts that turn out to belong to younger users.

2. Scope of licence

2.1 This licence will also govern any updates of the Licensed Application provided by Licensor that replace, repair, and/or supplement the first Licensed Application, unless a separate licence is provided for such update, in which case the terms of that new licence will govern.

2.2 You may not share or make the Licensed Application available to third parties (unless to the degree allowed by the Usage Rules, and with the Licensor's prior written consent), sell, rent, lend, lease or otherwise redistribute the Licensed Application.

2.3 You may not, and may not attempt to, nor allow or help any third party to:

reverse engineer, translate, disassemble, decompile, decrypt or otherwise attempt to derive the source code, the algorithms, the internal structure or the network protocol of the Licensed Application or of the Servers, or any part thereof;
remove, modify, patch, adapt, combine, integrate, or create derivative works or updates of the Licensed Application, or any part thereof, including through runtime manipulation, code injection or instrumentation tools;
develop, distribute or use any client, library, bot, script or other software, other than the unmodified Licensed Application, to access or communicate with the Servers;
access the Servers through automated means, including scraping, crawling, mass account creation or bulk messaging;
circumvent, disable or interfere with any security, authentication, rate-limiting, encryption or abuse-prevention feature of the Licensed Application or of the Servers;
probe, scan or test the vulnerability of the Servers, or impose an unreasonable load on them;
disclose to third parties the connection details of a Server that the Licensor has provided to You individually, without the Licensor's prior written consent.

2.4 Section 2.3 applies except to the extent that mandatory law expressly permits such acts notwithstanding a contractual prohibition, in particular Articles 64-ter and 64-quater of Italian Law no. 633 of 22 April 1941, and only within the strict limits set by those provisions.

2.5 You may not copy (excluding when expressly authorised by this licence and the Usage Rules) or alter the Licensed Application or portions thereof. You may create and store copies only on devices that You own or control for backup keeping under the terms of this licence, the Usage Rules, and any other terms and conditions that apply to the device or software used. You may not remove any intellectual property notices. You acknowledge that no unauthorised third parties may gain access to these copies at any time. If you sell your Devices to a third party, you must remove the Licensed Application from the Devices before doing so.

2.6 Any breach, or attempted breach, of Sections 2.2, 2.3 or 2.5 is a material breach of this Licence Agreement and an infringement of the Licensor's rights. Without prejudice to any other remedy, the Licensor may:

immediately and without notice suspend or close Your account and revoke Your access to all Servers;
seek injunctive relief, including interim and urgent measures, and the seizure and destruction of infringing copies;
claim full compensation for all damages suffered, including the costs of investigation, technical analysis and legal assistance, to the extent permitted by applicable law;
report the facts to the competent authorities, since unauthorised reproduction, decompilation, distribution or modification of software may constitute a criminal offence under Article 171-bis of Italian Law no. 633/1941.

You shall indemnify and hold harmless the Licensor and the other users of the Servers from any damage, loss, claim or expense arising from Your breach of Sections 2.2, 2.3 or 2.5.

2.7 Licensor reserves the right to modify the terms and conditions of licensing. Changes will be published on the Licensor's website and will apply from the date indicated there; if You continue to use the Licensed Application after that date, You accept the modified terms.

2.8 Nothing in this licence should be interpreted to restrict third-party terms. When using the Licensed Application, You must ensure that You comply with applicable third-party terms and conditions.

3. Technical requirements

3.1 Licensor attempts to keep the Licensed Application updated so that it complies with modified/new versions of the firmware and new hardware. You are not granted rights to claim such an update.

3.2 Licensor reserves the right to modify the technical specifications as it sees appropriate at any time.

3.3 The Licensed Application requires an Internet connection that allows connections to the Tor network. In some networks or countries the Tor network may be blocked or restricted; in that case the Licensed Application may not work.

4. Maintenance and support

4.1 The Licensor is solely responsible for providing any maintenance and support services for this Licensed Application. You can reach the Licensor at the email address listed in Section 12 or in the App Store Overview for this Licensed Application.

4.2 The Licensor and the End-User acknowledge that the Services have no obligation whatsoever to furnish any maintenance and support services with respect to the Licensed Application.

5. Use of data

5.1 The personal data processed in connection with the Licensed Application and the Servers, the purposes of the processing, the retention periods and Your rights are described in the Licensor's privacy policy: https://sacketchatty.sacketcloud.it/privacy

5.2 The content of Your messages and attachments is encrypted end-to-end on Your Device: the Licensor cannot read it, except for content that a user voluntarily attaches to an abuse report sent to the Licensor.

6. User-generated contributions

The Licensed Application allows you to create, send and share content with other users, including but not limited to text, writings, video, audio, photographs, graphics, comments, suggestions, or personal information or other material (collectively, 'Contributions'). Contributions are visible to the users You send them to. When you create or make available any Contributions, you thereby represent and warrant that:

The creation, distribution, transmission, public display, or performance, and the accessing, downloading, or copying of your Contributions do not and will not infringe the proprietary rights, including but not limited to the copyright, patent, trademark, trade secret, or moral rights of any third party.
You are the creator and owner of or have the necessary licences, rights, consents, releases, and permissions to use and to authorise the Licensed Application and the recipients to use your Contributions in any manner contemplated by the Licensed Application and this Licence Agreement.
You have the written consent, release, and/or permission of each and every identifiable individual person in your Contributions to use the name or likeness of each and every such identifiable individual person to enable inclusion and use of your Contributions in any manner contemplated by the Licensed Application and this Licence Agreement.
Your Contributions are not unsolicited or unauthorised advertising, promotional materials, pyramid schemes, chain letters, spam, mass mailings, or other forms of solicitation.
Your Contributions are not obscene, lewd, lascivious, violent, harassing, libellous, slanderous, or otherwise objectionable.
Your Contributions do not ridicule, mock, disparage, intimidate, or abuse anyone.
Your Contributions are not used to harass or threaten (in the legal sense of those terms) any other person or to promote violence against a specific person or class of people.
Your Contributions do not violate any applicable law, regulation, or rule.
Your Contributions do not violate the privacy or publicity rights of any third party.
Your Contributions do not violate any applicable law concerning child sexual abuse material, or otherwise intended to protect the health or well-being of minors.
Your Contributions do not include any offensive comments that are connected to race, national origin, gender, sexual preference, or physical handicap.
Your Contributions do not otherwise violate, or link to material that violates, any provision of this Licence Agreement, or any applicable law or regulation.

The Licensed Application lets users block other users and report abusive content to the Licensor. Any use of the Licensed Application in violation of the foregoing violates this Licence Agreement and may result in, among other things, termination or suspension of your account and of your rights to use the Licensed Application.

There is no tolerance for objectionable content or abusive users. The Licensor reviews each report within 24 hours of receiving it and, where the report is founded, suspends or closes the account responsible and deletes the data associated with it from the Servers.

7. Contribution licence

7.1 You retain full ownership of all of your Contributions and of any intellectual property rights associated with them. The Licensor does not acquire any right in your Contributions, except the limited right to store, in encrypted form, and to transmit them to their recipients through the Servers, for the sole purpose of providing the service.

7.2 If You report content to the Licensor, You authorise the Licensor to examine the content attached to the report for the sole purpose of handling the report, preventing abuse and complying with legal obligations.

7.3 The Licensor is not liable for any statements or representations in your Contributions. You are solely responsible for your Contributions. The Licensor has no obligation to monitor Contributions, but may remove accounts and the data associated with them from the Servers in case of a breach of this Licence Agreement or where required by law.

8. Liability

8.1 Licensor takes no accountability or responsibility for any damages caused due to a breach of duties according to Section 2 of this Licence Agreement. To avoid data loss, You are required to make use of backup functions of the Licensed Application to the extent allowed by applicable third-party terms and conditions of use. You are aware that in case of alterations or manipulations of the Licensed Application, You will not have access to the Licensed Application.

8.2 Licensor takes no accountability and responsibility in case of events outside the Licensor's reasonable control (force majeure), including unavailability or blocking of the Tor network.

8.3 The Licensor is not liable for the loss of data stored on the Test Server, which is deleted by design as described in Section 1.3.

8.4 Nothing in this Licence Agreement excludes or limits the Licensor's liability for wilful misconduct or gross negligence (Article 1229 of the Italian Civil Code), or any other liability that cannot be excluded or limited under applicable law, including consumer protection law.

9. Warranty

9.1 Licensor warrants that the Licensed Application is free of spyware, trojan horses, viruses, or any other malware at the time of Your download. Licensor warrants that the Licensed Application works as described in the user documentation.

9.2 No warranty is provided for the Licensed Application that is not executable on the device, that has been unauthorisedly modified, handled inappropriately or culpably, combined or installed with inappropriate hardware or software, used with inappropriate accessories, regardless if by Yourself or by third parties, or if there are any other reasons outside of the Licensor's sphere of influence that affect the executability of the Licensed Application.

9.3 You are required to inspect the Licensed Application immediately after installing it and notify the Licensor about issues discovered without delay by email provided in Contact Information. The defect report will be taken into consideration and further investigated if it has been emailed within a period of ninety (90) days after discovery.

9.4 If we confirm that the Licensed Application is defective, the Licensor reserves a choice to remedy the situation either by means of solving the defect or substitute delivery.

9.5 In the event of any failure of the Licensed Application to conform to any applicable warranty, You may notify the Services Store Operator, and Your Licensed Application purchase price will be refunded to You. To the maximum extent permitted by applicable law, the Services Store Operator will have no other warranty obligation whatsoever with respect to the Licensed Application, and any other losses, claims, damages, liabilities, expenses, and costs attributable to any negligence to adhere to any warranty.

9.6 If the user is an entrepreneur, any claim based on faults expires after a statutory period of limitation amounting to twelve (12) months after the Licensed Application was made available to the user. The statutory periods of limitation given by law apply for users who are consumers.

10. Product claims

The Licensor and the End-User acknowledge that the Licensor, and not the Services, is responsible for addressing any claims of the End-User or any third party relating to the Licensed Application or the End-User's possession and/or use of that Licensed Application, including, but not limited to:
(i) product liability claims;
(ii) any claim that the Licensed Application fails to conform to any applicable legal or regulatory requirement; and
(iii) claims arising under consumer protection, privacy, or similar legislation.

11. Legal compliance

You represent and warrant that You are not located in a country that is subject to a US Government embargo, or that has been designated by the US Government as a 'terrorist supporting' country; and that You are not listed on any US Government list of prohibited or restricted parties.

12. Contact information

For general inquiries, complaints, questions or claims concerning the Licensed Application, please contact:

Francesco Sacco

95041 Caltagirone, CT, Italia

sacketchatty@proton.me

13. Termination

The licence is valid until terminated by the Licensor or by You. Your rights under this licence will terminate automatically and without notice from the Licensor if You fail to adhere to any term(s) of this licence; in that case the Licensor may also close Your account and revoke Your access to the Servers. Upon Licence termination, You shall stop all use of the Licensed Application, and destroy all copies, full or partial, of the Licensed Application.

14. Third-party terms of agreements and beneficiary

The Licensor represents and warrants that the Licensor will comply with applicable third-party terms of agreement when using Licensed Application.

In Accordance with Section 9 of the 'Instructions for Minimum Terms of Developer's End-User Licence Agreement', Apple and Apple's subsidiaries shall be third-party beneficiaries of this End User Licence Agreement and - upon Your acceptance of the terms and conditions of this Licence Agreement, Apple will have the right (and will be deemed to have accepted the right) to enforce this End User Licence Agreement against You as a third-party beneficiary thereof.

15. Intellectual property rights

15.1 The Licensed Application, the software of the Servers, their source code, network protocol, design, name and logo are the exclusive property of the Licensor and are protected by copyright and by the other applicable intellectual property laws. This licence grants You only the limited right of use described in Section 2; no other right is transferred to You.

15.2 The Licensor and the End-User acknowledge that, in the event of any third-party claim that the Licensed Application or the End-User's possession and use of that Licensed Application infringes on the third party's intellectual property rights, the Licensor, and not the Services, will be solely responsible for the investigation, defence, settlement, and discharge of any such intellectual property infringement claims.

16. Applicable law and jurisdiction

16.1 This Licence Agreement is governed by the laws of Italy excluding its conflicts of law rules. If You are a consumer, this choice does not deprive You of the protection granted by the mandatory provisions of the law of Your country of habitual residence.

16.2 If You are a consumer, the court of Your place of residence or domicile has jurisdiction, as provided by Article 66-bis of the Italian Consumer Code. In all other cases, the courts of Caltagirone, CT, Italia (Italy) have exclusive jurisdiction.

17. Miscellaneous

17.1 If any of the terms of this agreement should be or become invalid, the validity of the remaining provisions shall not be affected. Invalid terms will be replaced by valid ones formulated in a way that will achieve the primary purpose.

17.2 Collateral agreements, changes and amendments are only valid if laid down in writing. The preceding clause can only be waived in writing.

17.3 This Licence Agreement is drawn up in English. Any translation is provided for convenience only; in case of discrepancy, the English version prevails.