Legal · LGPD

Privacy Policy

Last updated: 20/07/2026 · Portuguese is the official document.

In short

Compendium runs entirely on your own computer, so your research data never leaves your device and we have no access to it. The only personal information we process today is the email you choose to send us directly, if and when you write to askcompendium@gmail.com. We do not use cookies, do not run analytics, and do not sell data.

Controller: Vitor Pio Daldegan, a natural person acting as a small-scale data processing agent under ANPD Resolution CD/ANPD No. 2/2022 (LGPD art. 5, VI). Data-protection contact channel: askcompendium@gmail.com. Additional controller identification details (including tax registration) will be provided directly to the data subject or to Brazil's National Data Protection Authority (ANPD) upon request, in observance of the minimization principle (LGPD art. 6, III).

Local-first principle: read this first Compendium is a desktop application for systematic review and meta-analysis that runs entirely on your own computer. All User Content (references, screening decisions, extractions, study data, risk-of-bias assessments, meta-analyses, and the model's own prompts and responses) is stored in a local database on your device. AI assistance runs locally, through the open Ollama runtime, over a loopback (localhost) interface, with no data sent to external servers. There is no cloud backend, user account, cloud authentication, cloud sync, or cloud AI in the current product. The license key is verified entirely offline, on the device itself, with no server call and no password. The app does not transmit User Content to us or to third parties. As a result, the controller does not process User Content within the meaning of LGPD art. 5, X — the only personal data processing actually carried out today is of emails the data subject voluntarily sends to askcompendium@gmail.com, described in this Policy.

Network use. The app may use a network connection for operations that do not involve User Content, such as downloading an AI model through Ollama. None of these operations transmits research data. If any cloud-processing option is offered in the future — including a possible reactivation of a waitlist with form-based email capture — it will require the data subject's explicit confirmation, and this Policy will be updated beforehand.

1. What Personal Data We Process

CategoryDataSource and notes
CommunicationEmail address and message contentVoluntarily provided by the data subject when writing to askcompendium@gmail.com; we do not automatically collect IP address, cookies, or other identifiers through this channel
LicensingLicense keyValidated offline, in the app itself, with no server call and no password
User ContentReferences, screening decisions, extractions, study data, risk-of-bias assessments, meta-analyses, local-model prompts and responses, attached documents and PDFsStored exclusively and locally on the data subject's device; not transmitted to the controller or to third parties

Sensitive data and research data. We do not collect sensitive personal data (LGPD art. 5, II) or data about patients or research participants. The platform is designed for metadata, summaries, and aggregate estimates, and does not verify content entered by the user. The user is responsible for not entering identifiable personal data of research participants into the app and, in case of doubt, should consult their institution's data protection officer or the relevant ethics committee.

Children and adolescents. Compendium is intended for researchers 18 years of age or older. We do not intentionally collect data from children or adolescents (LGPD art. 14) and do not target the waitlist or the product to that audience. If we identify a registration by someone under 18, the record will be deleted.

2. Purposes and Legal Bases

PurposeLegal basis (LGPD)Note
Support and communication, when the data subject contacts us by emailLegitimate interest (art. 7, IX)Restricted to handling the data subject's own request
Validate the license key offline, in the app itselfPerformance of a contract (art. 7, V)No data sent to a server
Screening, extraction, and drafting assisted by local AINo processing by the controllerRuns exclusively on the data subject's device

Billing/subscription, cloud account, cloud AI, sync, analytics, and an email-capturing waitlist do not exist in the product today. If any of these are introduced, this Policy will be updated beforehand, naming the relevant providers and legal bases, and new data collection will require new consent where legally required.

3. Who We Share Data With — Processors and Sub-processors

User Content is not shared with any provider — it stays stored locally on the data subject's device. The only personal-data flow today is the email a data subject chooses to send us:

ProviderRoleData and location
Google LLC (Gmail)Receiving and storing emails sent to askcompendium@gmail.comReceives the sender's email address and message content; data stored and processed by Google, which may occur on servers located in the United States — see Section 4

We do not sell, rent, or transfer personal data to third parties for commercial, advertising, or data-enrichment purposes. Any sharing arising from a legal obligation or an order from a competent authority (LGPD art. 7, II) will be restricted to what is strictly required and, where legally possible, communicated to the data subject.

4. International Data Transfer

4.1. User Content. In local-first mode, User Content does not leave the data subject's device; there is therefore no international transfer of that content.

4.2. Contact emails. If the data subject chooses to write to us, that message is received and processed by Google LLC (Gmail), which may occur on servers located in the United States — a country that, as of this date, is not the subject of an ANPD adequacy decision for this purpose. This transfer results from the data subject's own voluntary initiative to contact the controller through this channel; we ask that the data subject not include sensitive personal data of third parties in these messages.

4.3. Evolution of the mechanism. Should the controller reactivate a structured email-capture channel (for example, a waitlist with a form), the associated international transfer will be based on the data subject's specific and highlighted consent, under LGPD art. 33, VIII, with the collection mechanism described in this Policy beforehand.

5. Retention and Deletion

DataRetention periodEnd of processing (LGPD arts. 15–16)
Contact emailsFor as long as necessary to handle the request and meet legal requirementsDeletion or anonymization at the end, or upon the data subject's request
User ContentUnder the data subject's exclusive control, on their own deviceThe data subject deletes it whenever they wish, including by uninstalling the app; the controller holds no copy

6. Data Subject Rights (LGPD art. 18)

The data subject may, at any time, through a free request to the channel in Section 14, obtain: confirmation that processing exists; access to their data; correction of incomplete, inaccurate, or outdated data; anonymization, blocking, or deletion of unnecessary, excessive, or unlawfully processed data; portability; information about sharing with public and private entities; information about the option not to give consent and the consequences of refusal; and revocation of consent.

Response deadlines. Requests will be answered within the deadlines set by the LGPD and its regulations, observing the differentiated deadlines applicable to small-scale processing agents (Resolution CD/ANPD No. 2/2022).

Complaint to the ANPD. The data subject has the right to lodge a complaint about their data with Brazil's National Data Protection Authority (LGPD art. 18, §1), without prejudice to judicial remedies.

7. Information Security

The controller adopts technical and organizational measures reasonable and proportionate to the risk of processing (LGPD arts. 6, VII–VIII, and 46), including:

  • Restricting access to the contact mailbox (askcompendium@gmail.com) to the controller alone;
  • Minimization by design: only what is necessary for the purpose is collected (art. 46, §2);
  • No third-party trackers on this site, which hosts its own resources (including fonts), so that browsing does not expose the visitor's IP address to third parties;
  • Scheduled deletion as set out in Section 5;
  • In the app, the local-first architecture as a structural security measure: data that is never transmitted cannot be intercepted in transit or exposed by third parties.

There are no user accounts, cloud authentication, or password storage on this site or in the app. Local data follows the file permissions of the data subject's operating system: if the device is compromised, that data carries the same risk as the user's other files. No system is entirely secure; remaining risks are addressed in Section 8.

8. Security Incidents

In the event of a security incident that may cause relevant risk or harm to data subjects (LGPD art. 48), the controller will notify the ANPD and the affected data subjects under Resolution CD/ANPD No. 15/2024, observing the differentiated deadline applicable to small-scale processing agents, disclosing the nature of the affected data, the data subjects involved, the measures adopted, and the related risks.

9. Cookies and Analytics

This site does not use cookies, pixels, analytics tools, or any tracking technology, and does not build individual browsing profiles. If this changes (for example, adopting privacy-focused analytics), this Policy will be updated beforehand, and non-essential cookies will require the data subject's prior consent, in line with the ANPD's Guidance on Cookies and Personal Data Protection.

10. Data Protection Officer

The controller qualifies as a small-scale processing agent and is exempt from appointing a Data Protection Officer under art. 11 of Resolution CD/ANPD No. 2/2022, while maintaining the communication channel with the data subject required by that same rule. As a governance best practice (LGPD art. 50), the controller himself voluntarily serves as the point of contact for data-protection matters, a situation to be reassessed as operations grow, under Resolution CD/ANPD No. 18/2024. Data-protection contact: askcompendium@gmail.com.

11. Small-Scale Processing Agent Regime

This processing follows the simplified regime of Resolution CD/ANPD No. 2/2022, applicable to small-scale processing agents, which includes simplified record-keeping of processing operations (LGPD art. 37) and differentiated deadlines for responding to data subjects and reporting incidents. The benefits of this regime cease automatically in the event of high-risk processing (large-scale processing, data of children and adolescents, sensitive data, or exclusively automated decisions), which does not occur in the current operation.

12. Changes and Versioning

This Policy may be updated to reflect changes in the product, providers, or legislation. Material changes — especially new purposes, new providers, or a change in the international-transfer mechanism — will be published before they take effect, highlighted on the site. Each version is identified by number and date at the top of the document, and the controller keeps a version history for transparency purposes. Processing that depends on consent will not be expanded without a new expression of consent from the data subject.

13. Applicable Law

This Policy is governed by Brazilian law, in particular Law No. 13,709/2018 (LGPD), the Marco Civil da Internet (Law No. 12,965/2014) where applicable, and ANPD regulations, including Resolutions CD/ANPD No. 2/2022, 15/2024, 18/2024, 19/2024, and 32/2026.

14. Contact

Vitor Pio Daldegan · askcompendium@gmail.com · exclusive channel for data subject requests and communications about data protection.

This Privacy Policy was reviewed and consolidated by FSA Advogados Associados. It covers the product as it operates today: a local-first desktop app with no cloud backend and no active waitlist form — the only personal data processed is what a data subject sends by email. If a structured email-capture channel (waitlist) is reactivated, the corresponding consent notice and processing terms will be added to this Policy beforehand, before that channel goes live.