kkiruk studio

Privacy Policy / 개인정보 처리방침

Effective: April 17, 2026 · Developer: kkiruk studio · Contact:

kkiruk studio ("we") operates the apps listed below and is committed to protecting your privacy. This policy applies to all apps listed.

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Information we collect

All apps

We do not collect personally identifiable information. We do not use advertising or analytics SDKs.

Pinclip

Video URLs, titles, thumbnails, notes, tags, and folder information you save are stored on your device. For Pinclip Pro subscribers, this data is synced to your Apple iCloud account's private CloudKit database, subject to Apple's Privacy Policy. Metadata (titles, thumbnail URLs) fetched when sharing a URL is requested directly from the origin platform's public API (YouTube, TikTok, etc.) and never passes through our servers.

ThanYesterday

Your device location (precise or approximate) is used to provide weather data via Apple WeatherKit. Location is not stored outside your device.

RunNote

When using AI coaching features, your running data (distance, pace, heart rate, etc.) is sent to Anthropic's servers (Claude API). Your explicit consent will be requested before this feature is activated.

Running data (distance, time, pace, route) and health data via HealthKit (heart rate, calories, etc.) may be collected. This data is used solely to provide AI coaching and is never used for advertising, marketing, or data sales. If you do not use AI coaching, all data remains on-device only.

Sidefeed

Sidefeed accesses your YouTube liked videos and subscription data via Google OAuth. Consent is requested at sign-in.

Google OAuth tokens are securely stored in the device Keychain. Liked video and subscription data is used solely for interest category analysis and is never transmitted to or stored on our servers. Watch history and category preferences are stored on-device only.

Sidefeed's use of Google APIs complies with the , including the Limited Use requirements. YouTube liked and subscription data is used solely for interest category analysis, is never transmitted to or stored on our servers, is never transferred or sold to third parties, and is never used for advertising or purposes unrelated to providing the app's features. No human reads this data unless we have your explicit consent or are legally required to.

Talk Memo

Audio recorded via the Apple Watch microphone, text memos generated by on-device speech recognition, and recording timestamps are collected. All data is processed entirely on-device and is never transmitted to external servers. Apple's on-device Speech Recognition is used.

How we use information

Data is used solely to provide app functionality. We do not sell or share it with third parties.

Third-party services

Apple WeatherKitThanYesterday — weather data
Apple iCloud (CloudKit)Pinclip — Pro subscriber data sync
Apple HealthKitRunNote — health data
Anthropic (Claude API)RunNote — AI coaching (with consent)
Google OAuth 2.0Sidefeed — YouTube account auth
YouTube Data API v3Sidefeed — video discovery & trending
Apple Speech RecognitionTalk Memo — on-device speech-to-text

Data sent via Anthropic API is not used for model training and is automatically deleted after 7 days. See Anthropic's Privacy Policy for details.

YouTube API usage is subject to Google's Privacy Policy. Google OAuth tokens are stored only in the device Keychain and are never transmitted to our servers.

International data transfers

To provide certain features, your personal data may be transferred outside of your country as described below. If you do not wish to consent to a transfer, you may choose not to use the corresponding feature or app.

Apple Inc. (United States)

  • Data: location (ThanYesterday), health data (RunNote), iCloud-synced data (Pinclip Pro), speech recognition data (Talk Memo)
  • Timing & method: transmitted over TLS when the relevant API is called
  • Purpose: providing WeatherKit, HealthKit, iCloud (CloudKit), and Speech Recognition features
  • Retention: governed by the
  • Opt-out: revoke the relevant permission in iOS Settings, or disable iCloud sync

Anthropic, PBC (United States)

  • Data: running data (distance, duration, pace, heart rate, route)
  • Timing & method: Claude API calls when using RunNote's AI coaching feature
  • Purpose: generating AI coaching responses
  • Retention: automatically deleted within 7 days after processing
  • Opt-out: do not use the AI coaching feature

Google LLC (United States)

  • Data: OAuth tokens, YouTube liked videos / subscribed channels
  • Timing & method: during Google sign-in and YouTube Data API calls
  • Purpose: YouTube account authentication and retrieving liked / subscription data
  • Retention: governed by the . OAuth tokens are removed from the device immediately upon sign-out or app deletion
  • Opt-out: do not sign in to Sidefeed, or revoke Sidefeed's access from your Google Account security settings

Data retention & deletion

By default, all data is deleted when you uninstall the app. We do not retain user data on any external server.

Pinclip Pro's iCloud-synced data is stored in your iCloud account and may remain in iCloud even after the app is deleted. You can delete it directly from iOS Settings > Apple ID > iCloud > "Pinclip".

Data sent to Anthropic via RunNote's AI coaching feature is automatically deleted after 7 days.

Sidefeed's Google OAuth tokens are immediately removed from the device Keychain upon sign-out or app deletion.

Talk Memo's recordings and text data are stored only in the App Group local storage and are removed upon app deletion.

Security measures

We apply the following technical and organizational measures to protect your personal data:

  • All network traffic uses HTTPS (TLS); unencrypted HTTP is not used.
  • Sensitive data such as authentication tokens is stored encrypted in the iOS Keychain.
  • Processing is performed on-device whenever possible (speech recognition, thumbnail caching, etc.) to minimize external transmission.
  • The main app, Share Extension, and widgets share data only within the iOS App Group sandbox.
  • We do not include advertising, tracking, or third-party analytics SDKs.
  • We collect and process only the minimum data required to provide the service.
  • Transmissions to external services either require your prior consent (RunNote AI coaching, Sidefeed Google OAuth) or are limited to essential feature delivery.

Children's privacy

We do not knowingly collect personal information from children below the minimum age required by applicable local law (for example, age 14 in the Republic of Korea, age 13 in the United States, and between 13 and 16 in EU member states) without verified consent from a legal guardian. If we become aware that such a child has provided personal information without the required consent, we will delete it promptly.

EU User Rights (GDPR)

If you are located in the EU/EEA, you have the following rights.

Right of accessRequest a copy of data we hold about you
Right to erasureRequest deletion of your data (automatically deleted when app is uninstalled)
Right to restrictionRequest that we stop processing certain data
Right to objectObject to our processing of your data

Data transmitted to Anthropic for RunNote's AI coaching is based on Legitimate Interest for service provision.

Sidefeed's Google OAuth is based on explicit user Consent.

To exercise your rights, contact:

EU/EEA residents also have the right to lodge a complaint with the supervisory authority in their country of residence.

California Notice (CCPA)

We may not qualify as a "business" under the California Consumer Privacy Act (CCPA) / CPRA, but as a matter of policy, regardless of your location:

  • We do not sell your personal information.
  • We do not share your personal information with third parties for cross-context behavioral advertising.
  • You receive the same protections whether or not you submit a "Do Not Sell or Share My Personal Information" request.

Revoking Google API access (Sidefeed)

Signing out of Sidefeed immediately deletes all Google-related data (OAuth tokens, liked/subscription cache) from the device. You can also revoke Sidefeed's access from your Google Account security settings.

Privacy Officer

For privacy-related inquiries, complaints, or requests to exercise your data rights (access, correction, deletion, restriction of processing), please contact the representative below. We respond in accordance with applicable law.

  • Role: Privacy Officer / Data subject access request contact
  • Team: kkiruk studio development team
  • Contact:

Changes to this policy

We may update this policy. Changes will be posted on this page.

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