Privacy Policy

Last updated: 2026-10-20

This Privacy Policy applies to the Spirograph Maker app for iOS and Android, operated by KYWorks. The app is designed to collect as little information as possible.

Data we collect

• No personal information such as your name, phone number, postal address, or age is collected in normal use. However, in the optional "Feedback" feature, an email address and the body of your message are sent only if you choose to enter them (see "Third-party SDKs" below).
• Location: The app does not request location permission and does not collect your device's precise location (such as GPS). However, to serve ads, your IP address is sent to the ad SDKs (Google AdMob / Meta Audience Network) when the app communicates with them, and it may be used to infer your approximate region. Your precise location (such as a street address or building) is never passed to ad providers.
• Advertising identifiers:
  • iOS (IDFA): collected by the ad SDKs only if you allow tracking in the App Tracking Transparency prompt.
  • Android (Advertising ID): collected by the ad SDKs. In regions where consent is required (such as the EEA and the UK), it is handled according to your choice in the Google UMP consent dialog.
• Crash and usage data: via Firebase Analytics / Crashlytics / Performance, we collect in-app interaction events, records of ad-removal purchases (product and price), crash logs, and diagnostic information (device model, OS version, app version, etc.) to detect bugs and understand which features are used. This data includes an identifier that distinguishes app installations, but it does not include information that directly identifies you, such as your name or email address.

Where your artwork lives

All artwork you create stays on your device, in the app's sandboxed storage. It is never sent to any KYWorks server, and we do not have the ability to view it.

Third-party SDKs

The app uses the following third-party SDKs. Their respective privacy policies apply when those services receive data:

• Google AdMob (banner ads + mediation) — receives your Advertising ID, IP address, app interactions (such as ad views and taps), and diagnostic information, used for ad delivery, analytics, and fraud prevention. policies.google.com/privacy
• Meta Audience Network (mediation) — when serving ads through AdMob mediation, receives your Advertising ID, IP address, app interactions (such as ad views and taps), and diagnostic information, used for ad delivery, analytics, and fraud prevention. facebook.com/about/privacy
• Firebase Analytics / Crashlytics / Performance — firebase.google.com/support/privacy
• Google Forms (Google LLC) — when you submit the in-app "Feedback" form, the body of your message and any contact email address you choose to provide are sent, along with device information (model, OS version), the app version, purchase status, and language setting for diagnostic context. This information is used solely to respond to your enquiry and to improve quality; it is never used for advertising. policies.google.com/privacy

Children

Spirograph Maker collects no personal information in normal use and is suitable for use by children. The only exception is the optional "Feedback" feature, which sends an email address solely if one is entered. We do not knowingly process children's personal data. If you allow a child to use the app without supervision, you may wish to enable the optional ad-removal in-app purchase.

Your choices

• You can opt out of personalized ads at any time via your device's OS settings.
• Uninstalling the app removes all device-side data. There is no separate request to delete server-side data because we do not store any.

Changes to this policy

We may update this policy from time to time. The "Last updated" date above reflects the most recent revision.

Contact

Questions about this policy: contact@kyworks.jp (response within 2 business days, JST).