Privacy policy
Privacy policy
Last updated & effective: 9 June 2025
Caldien Inc. (“Caldien,” “we,” “us,” or “our”) operates the Deepen AI Dictionary mobile application and related services (collectively, the “Service”). By installing, accessing, or using the Service you acknowledge that you have read and understood this Privacy Policy and agree to the practices described below.
Scope & Consent
This Policy applies to all personal and non-personal data we process in connection with the Service, regardless of where you live.
By (a) creating an account, (b) connecting a third-party login, or (c) otherwise using the Service,
you:
consent to the collection, use, disclosure, and retention of your information as described here; and
confirm that you are at least 13 years old (or the minimum age of digital consent in your jurisdiction, whichever is higher).
Information We Collect
A. Information you provide directly
Account data – e-mail address, display name, birthday (for age verification), native language, and any profile photo you upload.
User content – search terms, saved word collections, feedback, and customer-support messages.
B. Information from third-party log-ins
When you sign in with Apple, Google, LINE, or KakaoTalk we receive the limited data those providers make available (typically an e-mail address, encrypted user-ID token, locale, and avatar URL). We never receive your password for those services.
C. Information collected automatically
Device & diagnostics – IP address, device model, OS version, language, time zone, crash logs, and advertising identifiers (via Firebase).
Usage analytics – search queries, screen views, feature taps, session length, and referral source.
Audio snippets – text sent to ElevenLabs for speech generation.
D. Payment data
All monetary transactions are processed by Apple or Google. We receive only anonymized transaction IDs and subscription status—never complete card or banking details.
How We Use Your Information & Legal Bases
We process personal data only when we have a legal basis (GDPR Art. 6), typically performance of a contract, legitimate interests, consent, or compliance with a legal obligation.
Purpose | Legal basis |
Deliver core functionality (definitions, text-to-speech, saved collections) | Contract |
Operate, secure, troubleshoot, and improve the Service—including training and evaluating AI models | Legitimate interests |
Personalize content (e.g., rank search suggestions in your chosen language) | Legitimate interests / Consent |
Send transactional messages, security alerts, policy updates, and—where permitted—promotions (opt-out anytime) | Contract / Legitimate interests / Consent |
Enforce our Terms; detect, investigate, and prevent fraud or abuse | Legitimate interests / Legal obligation |
Generate aggregated, de-identified analytics and product insights | Legitimate interests |
We do not sell your personal data and do not use it to build advertising profiles.
How & With Whom We Share Data
We disclose only the minimum data required for each purpose and bind recipients to strict confidentiality and security obligations.
Recipient | Purpose | Retention by recipient |
OpenAI | Receives your text query to generate a response | Deleted per OpenAI policy after processing |
ElevenLabs | Receives text and speaker settings to produce audio | Per ElevenLabs retention schedule |
Firebase (Google) | Analytics, crash reporting, in-app messaging | Per Firebase retention schedule |
Courts / Law enforcement | Compliance with legal obligations or to protect rights, property, or safety | As required by law |
Corporate successor | Merger, acquisition, or sale of assets | Bound by this Policy or one offering materially equal protection |
We do not allow third-party ad-tracking cookies or SDKs.
International Transfers
Our servers and primary subprocessors are located in the United States. By using the Service you acknowledge that your information may be transferred to, processed, and stored in the U.S. or other countries whose laws may differ from yours. For EU/UK users we rely on the European Commission’s Standard Contractual Clauses or other legally recognized safeguards.
Data Retention
Data category | Typical retention |
Active accounts | Until you delete the account |
Inactive accounts | Auto-deleted after 12 months with no sign-in |
Audio clips | Purged 12 months after subscription cancellation or immediately upon permanent-deletion request |
Support tickets | 24 months after resolution |
Aggregated / de-identified data | Retained indefinitely |
Legal holds | As long as necessary to comply with law or enforce Terms |
Security
We use industry-standard safeguards: TLS encryption in transit, AES-256 encryption at rest, least-privilege access, periodic penetration tests, and continuous monitoring. No system is 100 % secure; you are responsible for protecting your device and credentials.
Your Privacy Rights
Depending on your location (e.g., GDPR, CCPA/CPRA, LGPD), you may have the right to:
access, correct, download, or delete personal data;
object to or restrict certain processing;
withdraw consent without affecting prior processing;
lodge a complaint with a supervisory authority;
receive equal service and price even if you exercise privacy rights.
Submit requests in-app or e-mail hello@getdeepen.com. We will verify your identity and respond within the timeframe required by law (30 days in most regions). We will not discriminate against you for exercising your rights.
Children’s Privacy
The Service is not directed to children under 13 (or the applicable age of digital consent). We do not knowingly collect data from such users. If we discover that a child below the minimum age has provided personal information, we will delete it and terminate the account.
Changes to This Policy
We may update this Policy periodically. Material changes will be announced in-app or by e-mail at least 15 days before they take effect. Continued use after the effective date constitutes acceptance.
Contact Us
Caldien Inc.
5900 Balcones Drive, Suite 100
Austin, TX 78731, USA
E-mail: hello@getdeepen.com
Last updated & effective: 9 June 2025
Caldien Inc. (“Caldien,” “we,” “us,” or “our”) operates the Deepen AI Dictionary mobile application and related services (collectively, the “Service”). By installing, accessing, or using the Service you acknowledge that you have read and understood this Privacy Policy and agree to the practices described below.
Scope & Consent
This Policy applies to all personal and non-personal data we process in connection with the Service, regardless of where you live.
By (a) creating an account, (b) connecting a third-party login, or (c) otherwise using the Service,
you:
consent to the collection, use, disclosure, and retention of your information as described here; and
confirm that you are at least 13 years old (or the minimum age of digital consent in your jurisdiction, whichever is higher).
Information We Collect
A. Information you provide directly
Account data – e-mail address, display name, birthday (for age verification), native language, and any profile photo you upload.
User content – search terms, saved word collections, feedback, and customer-support messages.
B. Information from third-party log-ins
When you sign in with Apple, Google, LINE, or KakaoTalk we receive the limited data those providers make available (typically an e-mail address, encrypted user-ID token, locale, and avatar URL). We never receive your password for those services.
C. Information collected automatically
Device & diagnostics – IP address, device model, OS version, language, time zone, crash logs, and advertising identifiers (via Firebase).
Usage analytics – search queries, screen views, feature taps, session length, and referral source.
Audio snippets – text sent to ElevenLabs for speech generation.
D. Payment data
All monetary transactions are processed by Apple or Google. We receive only anonymized transaction IDs and subscription status—never complete card or banking details.
How We Use Your Information & Legal Bases
We process personal data only when we have a legal basis (GDPR Art. 6), typically performance of a contract, legitimate interests, consent, or compliance with a legal obligation.
Purpose | Legal basis |
Deliver core functionality (definitions, text-to-speech, saved collections) | Contract |
Operate, secure, troubleshoot, and improve the Service—including training and evaluating AI models | Legitimate interests |
Personalize content (e.g., rank search suggestions in your chosen language) | Legitimate interests / Consent |
Send transactional messages, security alerts, policy updates, and—where permitted—promotions (opt-out anytime) | Contract / Legitimate interests / Consent |
Enforce our Terms; detect, investigate, and prevent fraud or abuse | Legitimate interests / Legal obligation |
Generate aggregated, de-identified analytics and product insights | Legitimate interests |
We do not sell your personal data and do not use it to build advertising profiles.
How & With Whom We Share Data
We disclose only the minimum data required for each purpose and bind recipients to strict confidentiality and security obligations.
Recipient | Purpose | Retention by recipient |
OpenAI | Receives your text query to generate a response | Deleted per OpenAI policy after processing |
ElevenLabs | Receives text and speaker settings to produce audio | Per ElevenLabs retention schedule |
Firebase (Google) | Analytics, crash reporting, in-app messaging | Per Firebase retention schedule |
Courts / Law enforcement | Compliance with legal obligations or to protect rights, property, or safety | As required by law |
Corporate successor | Merger, acquisition, or sale of assets | Bound by this Policy or one offering materially equal protection |
We do not allow third-party ad-tracking cookies or SDKs.
International Transfers
Our servers and primary subprocessors are located in the United States. By using the Service you acknowledge that your information may be transferred to, processed, and stored in the U.S. or other countries whose laws may differ from yours. For EU/UK users we rely on the European Commission’s Standard Contractual Clauses or other legally recognized safeguards.
Data Retention
Data category | Typical retention |
Active accounts | Until you delete the account |
Inactive accounts | Auto-deleted after 12 months with no sign-in |
Audio clips | Purged 12 months after subscription cancellation or immediately upon permanent-deletion request |
Support tickets | 24 months after resolution |
Aggregated / de-identified data | Retained indefinitely |
Legal holds | As long as necessary to comply with law or enforce Terms |
Security
We use industry-standard safeguards: TLS encryption in transit, AES-256 encryption at rest, least-privilege access, periodic penetration tests, and continuous monitoring. No system is 100 % secure; you are responsible for protecting your device and credentials.
Your Privacy Rights
Depending on your location (e.g., GDPR, CCPA/CPRA, LGPD), you may have the right to:
access, correct, download, or delete personal data;
object to or restrict certain processing;
withdraw consent without affecting prior processing;
lodge a complaint with a supervisory authority;
receive equal service and price even if you exercise privacy rights.
Submit requests in-app or e-mail hello@getdeepen.com. We will verify your identity and respond within the timeframe required by law (30 days in most regions). We will not discriminate against you for exercising your rights.
Children’s Privacy
The Service is not directed to children under 13 (or the applicable age of digital consent). We do not knowingly collect data from such users. If we discover that a child below the minimum age has provided personal information, we will delete it and terminate the account.
Changes to This Policy
We may update this Policy periodically. Material changes will be announced in-app or by e-mail at least 15 days before they take effect. Continued use after the effective date constitutes acceptance.
Contact Us
Caldien Inc.
5900 Balcones Drive, Suite 100
Austin, TX 78731, USA
E-mail: hello@getdeepen.com
Learn through what moves you.
Deepen – your personal AI English dictionary.
Learn through
what moves you.
Deepen – your personal AI English dictionary.