Privacy
policy

Last Updated: June 1, 2026

Thank you for using Bitkit Watch. Bitkit Watch is made available by Synonym Software Ltd., registered in El Salvador and having its registered office at 87 avenida norte, calle El Mirador, edificio Torre Futura, oficina 06, nivel 11, colonia Escalón, del municipio de San Salvador, departamento de San Salvador, Código Postal 01101, República de El Salvador, (“Synonym”, “we”, “our”, or “us”).

We at Synonym respect and protect the privacy of Bitkit Watch users. This privacy notice (“Privacy Policy”) sets out the basis on which Personal Information about you (“you”, “your”, or “customer”) is processed by us. “Personal Information” is typically data that identifies an individual or relates to an identifiable individual and includes any information which, either alone or in combination with other data, enables you to be directly or indirectly identified, for example your name, email address, username, contact details or any unique identifier such as an IP address, device ID or other online identifier. Personal information includes information you provide to us, information which is collected about you automatically, and information we obtain from third parties. The exact definition of Personal Information depends on the applicable law based on your physical location. Only the definition that applies to your physical location will apply to you under this Privacy Policy.

Synonym acts as data controller for your Personal Information and has appointed Rickert RechtsanwaltsgesellschaftmbH, whose registered office is Colmantstraße 15, 53115, Bonn, Germany, as its EU/UK representative.

Please read the following carefully to understand what Personal Information we collect, how that Personal Information is used and the ways it can be shared by us. If you do not agree with or you are not comfortable with any aspect of this Privacy Policy, you should immediately discontinue access or use of Bitkit Watch and any related services.

  1. Information associated with your use of Bitkit Watch.

    Bitkit Watch is a browser-based website that does not require downloading via a third-party platform or app store. No account creation, authentication, or provision of personal information to Synonym is required to use Bitkit Watch.

    All data associated with your use of Bitkit Watch, including monitored Bitcoin addresses, user preferences, display settings, and cached blockchain or market data, is stored exclusively in your browser using standard web storage mechanisms. This data resides solely on your device and is not transmitted to, or accessible by, Synonym. You may delete locally stored Bitkit Watch data at any time by clearing your browser’s site data or local storage through the browser’s settings.

    • When you enter a Bitcoin address into Bitkit Watch, the application queries third-party external API services (“External API Providers”) to retrieve publicly available blockchain data and market data. In connection with these queries, the following information may be transmitted to External API Providers:
    • the public Bitcoin address(es) entered by you;
    • your IP address;
    • standard HTTP request metadata, including user-agent string, request timestamps, and protocol headers; and
    • any additional technical data inherent in your browser-to-API communication.

  2. Information transmitted to External API Providers.

    The External API Providers currently used by Bitkit Watch include mempool.space and Blockstream for publicly available blockchain data, and Coinbase Exchange and Coinbase for market data and exchange rates. Each External API Provider operates under its own privacy policy, and you are encouraged to review those policies to understand how your data may be collected, used, or retained by those providers. Synonym is not responsible for, and makes no representations regarding, the data practices of any External API Provider. Synonym does not receive, log, intercept, or store any of the data described above.

  3. Privacy implications of public blockchain data.

    You should be aware that Bitcoin addresses and their associated transaction histories are publicly visible on the Bitcoin blockchain. Monitoring an address through Bitkit Watch does not create any additional on-chain exposure of that address. However, the act of querying a Bitcoin address through an External API Provider may associate your IP address (or other network-level identifiers) with that Bitcoin address in the logs or records of the External API Provider.

  4. Aggregated Data.

    We may anonymize or aggregate Personal Information and other data captured by us so that it cannot be associated with a specific individual (“Aggregated Data”). Aggregated data may cover patterns of usage or information and data that you provide to us, and we reserve the right to use this aggregated information for the purposes of improving and enhancing our services, generating insights, for use in marketing to other users and current and potential partners and otherwise for the purposes of our business. Except for this section, none of the other provisions of this Privacy Policy applies to Aggregated Data.

  5. How your Personal Information is used.

    Our primary purpose in collecting Personal Information is to provide you with a secure, smooth, efficient, and customized experience. Because Synonym does not directly collect or store personal data in connection with Bitkit Watch, the following purposes apply primarily to any data that may be processed by External API Providers or as otherwise described in this Privacy Policy. We may use your Personal Information in the following ways:

    Compliance with legal and regulatory obligations

    Certain of our core services may be subject to laws and regulations requiring us to collect, use, and store your Personal Information in certain ways. This includes legal obligations imposed by relevant laws to which we are subject, as well as specific statutory requirements. There are also various supervisory authorities whose laws and regulations apply to us.

    These obligations may apply at various times, including during the operation and maintenance of Bitkit Watch and systemic checks for risk management.

    To ensure network and information security

    We may process your Personal Information to enhance security, monitor and verify identity or service access, combat malware or security risks and to comply with applicable security laws and regulations.

    To enforce our terms of use and other agreements

    We handle sensitive information so it is very important for us and our customers that we actively monitor, investigate, prevent, and mitigate any potentially prohibited or illegal activities, enforce our agreements with third parties, and/or prevent and detect violations of our posted terms of use or agreements for other services. We may use any of your Personal Information collected for these purposes.

    To enable us to provide Bitkit Watch to you

    We may process your Personal Information to allow you to use Bitkit Watch and its features. We also process your Personal Information when you contact us to resolve any questions, disputes or to troubleshoot problems. Without processing your Personal Information for such purposes, we cannot respond to your requests and ensure your uninterrupted use of our services and/or Bitkit Watch.

    To ensure quality control

    We may process your Personal Information for quality control and staff training to make sure we continue to provide you with accurate service and information.

    For the purpose of safeguarding legitimate interests

    We may process personal data so as to safeguard the legitimate interests pursued by us or by a third party. A legitimate interest is when we have a business or commercial reason to use your information. It is, for example, in the interest of our organization to conduct and manage our business; this includes protecting our interests and enforcing agreements with others, as well as comply with industry best practices. We might have legitimate interest to process Personal Information in other contexts. We ensure that we balance any potential impact on you and your rights before we process your Personal Information on that basis. You can obtain further information about how we assess our legitimate interests against any potential impact on you in respect of specific activities by contacting us. Please also consult the section “Your rights” below.

    We may process your Personal Information in this context

    • to better understand the way you use and interact with Bitkit Watch. In addition, we use such information to customize, measure, and improve our services and the content and layout of Bitkit Watch, and to develop new services. Without such processing, we cannot ensure your continued enjoyment of Bitkit Watch and services made available through Bitkit Watch;
    • to provide a personalized experience, and implement the preferences you request. For example, you may choose to provide us with access to certain Personal Information stored by third parties. Without such processing, we may not be able to ensure your continued enjoyment of part or all of Bitkit Watch and services made available through Bitkit Watch; and
    • to facilitate corporate acquisitions, mergers, or transactions. We may, in particular, process any information regarding your use of Bitkit Watch and services made available through Bitkit Watch as is necessary in the context of corporate acquisitions, mergers, or other corporate transactions.

    For any purpose that you provide your consent

    We will not use your Personal Information for purposes other than those purposes we have disclosed to you, without your permission. From time to time, and as required under applicable law, we may request your permission to allow us to share your Personal Information with third parties. In such instances, you may opt out of having your Personal Information shared with third parties, or allowing us to use your Personal Information for any purpose that is incompatible with the purposes for which we originally collected it or subsequently obtained your authorization. If you choose to limit the use of your Personal Information, certain features of Bitkit Watch may not be available to you.

  6. Legal Basis for processing your Personal Information

    For individuals who are located in the European Economic Area, the United Kingdom or Switzerland (collectively “EEA Residents”) at the time their Personal Information is collected, our legal bases for processing your information under the EU General Data Protection Regulation (“GDPR”) will depend on the Personal Information at issue, the specific context in the which the Personal Information is collected and the purposes for which it is used.

    Generally, we may process Personal Information, including data pertaining to EEA Residents, as described in Section 5 of this Privacy Policy, based on the following corresponding legal bases:

    Section & Purpose of Processing Legal Bases for Processing
    Section 5.1 – Compliance with a legal and regulatory obligations Based on our legal obligations, or the public interest.
    Section 5.2 – To ensure information security
    Section 5.3 – To enforce our terms in our terms of use and other agreements Based on our contract with you or to take steps at your request prior to entering into a contract
    Section 5.4 – To provide Bitkit Watch and allow you to use its features
    Section 5.5 – To ensure quality control (to the extent strictly necessary to provide Bitkit Watch)
    Section 5.6 – For the purpose of safeguarding legitimate interests Based on our legitimate interests (as balanced, as described under Section3.6)
    Section 5.6.2 – Personalization (to the extent that we asked for your consent) Based on your consent
    Section 5.7 – For any purpose that you provide your consent

    If you have questions about or need further information concerning the legal basis on which we collect and use your Personal Information, please contact us using the contact details provided under the “How to contact us” heading below.

  7. Security and confidentiality of your Personal Information.

    We are committed to protecting your privacy. Bitkit Watch’s systems and data are reviewed periodically to ensure that you are getting a quality service and that leading security features are in place. We have put in place appropriate physical, technical and administrative safeguards to protect the security and confidentiality of the Personal Information you entrust to us, as well as procedures to deal with any actual or suspected data breach and will notify you and any applicable regulator of a breach where we are legally required to do so.

    For example, we use computer safeguards such as firewalls and data encryption and we authorize access to Personal Information only for those contractors or employees who require it to fulfill their job responsibilities.

    Although Synonym does not collect or store User data in connection with Bitkit Watch, Synonym takes reasonable measures to ensure that Bitkit Watch code served to Users is free from malicious content. All connections between your browser and External API Providers are made over encrypted channels. Synonym does not, however, control the security practices of External API Providers and disclaims responsibility for any unauthorized access to data held by those providers.

  8. Transfers.

    We take care to allow your Personal Information to be accessed only by those who require access to perform their tasks and duties, and to share your Personal Information only with third parties who have a legitimate purpose for accessing it. We will never sell or rent your Personal Information to third parties without your explicit consent. As necessary, we may share your Personal Information with:

    • Any member of our group, including any of our associates or affiliates or any of their representatives;
    • Our service providers, to the extent they process your data on our behalf. Our data processing agreements require these service providers to only use your information in connection with the services they perform for us, and prohibit them from selling your information to anyone else. Examples of the types of service providers we may share Personal Information with (other than those mentioned above) include:
    • Network infrastructure, cloud storage, document repository services, and other Internet / IT related providers necessary to run and provide Bitkit Watch and services made available through Bitkit Watch;
    • Transaction monitoring, and other services provided in connection with Bitkit Watch;
    • Service providers specializing in security issues or customer support;
    • Selected third parties, including analytics and search engine providers that assist us in the improvement and optimization of Bitkit Watch and services;
    • Authorities and law enforcement agencies worldwide either when ordered to do so or on a voluntary basis if this appears reasonable and necessary to us;
    • Companies or other entities that we plan to merge with or be acquired by, in which case Personal Information held by it about its customers will be one of the transferred assets;
    • Our professional advisors who provide banking, legal, compliance, insurance, accounting, or other consulting services in order to complete third party financial, technical, compliance and legal audits of our operations or otherwise comply with our legal obligations;
    • Any other third party, if we are under a duty to disclose or share your Personal Information in order to comply with any legal obligation, or in order to enforce or apply our terms of and other agreements; or to protect the rights, property, or safety of us, our clients, or others, including to defend ourselves from legal claims.

  9. Data Retention

    We have data retention and deletion policies designed to retain Personal Information for no longer than necessary for the purposes set out herein or as otherwise required to meet legal or business needs. Because of those retention requirements, we might not be able to honor erasure requests.

    If we no longer process your Personal Information for the described purposes, we will remove it from our systems and records or make it completely anonymous so that you can no longer be identified from it. Your data will not be erased or made completely anonymous if and as long as we have to store your data in order to fulfil legal or regulatory obligations, e.g., legal retention requirements, which may arise from applicable national legislation.

  10. Your Rights

    General provisions

    Depending on applicable law where you reside, you may be able to assert certain rights related to your Personal Information identified below. If any of the rights listed below are not provided under law for your operating entity or jurisdiction, Synonym has absolute discretion in providing you with those rights.

    Your rights to Personal Information are not absolute. Depending upon the applicable law, access to your rights under the applicable law may be denied: (a) when denial of access is required or authorized by law; (b) when granting access would have a negative impact on another’s privacy; (c) to protect our rights and properties; (d) where the request is frivolous or vexatious, or for other reasons.

    Special provisions for EEA Residents

    If you are an EEA resident you have a number of rights in relation to how we process your Personal Information:

    • Access and portability. You may request that we provide you with a copy of your Personal Information held by us. This information will be provided without undue delay, unless such provision adversely affects the rights and freedoms of others. In certain circumstances, you may request to receive your Personal Information in a structured, commonly used and machine-readable format, and to have us transfer your Personal Information directly to another data controller.
    • Rectification of incomplete or inaccurate Personal Information. You may request us to rectify or update any of your Personal Information held by us that is inaccurate.
    • Erasure. You may have your Personal Information erased in certain circumstances, for example, where it is no longer necessary for us to process your Personal Information to fulfill our processing purposes; or where you have exercised your right to object to the processing.
    • Restrict the processing of your Personal Information. You have this right where, for example, the information is inaccurate or it is no longer necessary for us to process such information or where you have exercised your right to object to our processing. We may continue to process your Personal Information if it is necessary for the defense of legal claims, or for any other exceptions permitted by applicable law.
    • Object to the processing of your Personal Information. This right may be exercised in certain circumstances under applicable law, for example, where we are processing your Personal Information for direct marketing purposes, or where your own legitimate interests outweigh ours.
    • Data portability. You have the right to have your Personal Information transferred to a new service provider if you no longer wish to use Bitkit Watch and services made available through Bitkit Watch. You may exercise this right by contacting us.
    • Withdraw consent. When we rely on your consent to process Personal Information, you have the right to withdraw your consent at any time. Your withdrawal will not affect the lawfulness of our previous processing based on consent before your withdrawal.
    • Automated individual decision-making, including profiling. We rely on automated tools to help determine whether a user presents a fraud or legal risk. In some jurisdictions, you have the right not to be subject to a decision based solely on automated processing of your Personal Information, including profiling, which produces legal or similarly significant effects on you, save for the exceptions applicable under relevant data protection laws.

  11. Third-Party records

    Please be aware that Bitcoin addresses and their associated transaction histories are recorded on a public blockchain. Public blockchains are distributed ledgers, intended to immutably record transactions across wide networks of computer systems. Many blockchains are open to forensic analysis which can lead to deanonymization and the unintentional revelation of private financial information, especially when blockchain data is combined with other data.

    Because blockchains are decentralized or third-party networks which are not controlled or operated by Synonym, we are not able to erase, modify, or alter Personal Information from such networks.

  12. Changes to this Privacy Policy

    Any changes we make to our Privacy Policy in the future will be posted on this page and, where material, notified to you. Please check back frequently to see any updates or changes to our Privacy Policy. Any changes will be posted on this page and will take effect on the date indicated at the top of the revised notice. Continued use of Bitkit Watch following the posting of changes constitutes acceptance of those changes.

  13. Contact

    Questions, comments and requests regarding this Privacy Policy should be addressed to info@synonym.to.

    If you are an EEA Resident and you have any concerns about how we handle your Personal Information, please contact us in the first instance by email at info@synonym.to. You can also contact our EU/UK representative. We will do our best to resolve your concern. You can also submit a complaint to the national supervisory authority within your jurisdiction, details of which can be found here.