Privacy, in plain language.

1. Scope and contact

This policy applies to the CaffTrace iOS and iPadOS app and this website. For privacy questions or requests, email [email protected].

2. Data handled directly by CaffTrace

On-device caffeine data

Your caffeine entries, drink labels, timestamps, half-life preference, bedtime, threshold, reference drink, and language preference are stored in the app’s local storage. This information is used to calculate and display estimates. It is not transmitted to a first-party CaffTrace server.

Support email

If you contact us, your email address and message are used to answer your request and troubleshoot the issue. Please do not include health information or other sensitive personal data. Support correspondence is deleted when it is no longer needed, unless retention is required by law.

3. Advertising services

From version 0.2.0, CaffTrace uses Unity LevelPlay and the Unity Ads adapter. The app sends a declined personalized-advertising consent signal and a sale/sharing opt-out signal before starting the SDK. Advertising providers may still process:

• Approximate location inferred from an IP address
• Device or app-scoped identifiers available under iOS privacy controls
• Ads shown, ad interactions, and product interaction data
• Crash logs, performance data, and other diagnostics
• Other usage data and device environment, such as language, model, screen size, and connection type
• SDK-defined user identifiers and purchase-related information where applicable under the provider’s data practices
• Information you choose to submit when reporting an advertisement

Unity’s SDK disclosure also lists user identifiers and purchase information. These provider disclosures do not mean CaffTrace offers accounts or in-app purchases; CaffTrace has neither and does not send your caffeine records to the SDK.

This data may be used to provide and measure advertising, prevent fraud and abuse, analyze service performance, and improve advertising services. See Unity’s privacy policy and Unity’s app user privacy FAQ for details. Versions 0.1.x used Google Mobile Ads and Google UMP; Google’s privacy policy applies to those services.

4. Consent and your choices

Version 0.2.0 does not offer personalized-advertising opt-in. It sends declined consent and sale/sharing opt-out signals to LevelPlay. You can read this policy from Settings and use Unity’s privacy resources for provider-side requests. Versions 0.1.x used Google’s consent form and, where required, an “Ad privacy choices” entry point in Settings.

CaffTrace does not currently request App Tracking Transparency permission. If a future version introduces cross-app tracking, we will update this policy and request the required permission before such tracking occurs.

5. Retention and deletion

On-device caffeine data remains until you delete records, reset the app’s data, or remove the app. Because CaffTrace does not operate an account or caffeine-history server, there is no server-side caffeine record to delete.

Advertising providers retain or delete advertising data under their own policies and device settings. Contact us if you need help finding the applicable controls.

6. International processing and third parties

Unity and its advertising partners may process information in multiple countries. SDK privacy signals limit advertising uses but do not mean that no data is processed. CaffTrace does not send drink records or calculation settings to advertising providers.

7. Security and children

We limit direct data handling by keeping caffeine history on the device and by not requiring an account. No method of electronic storage is completely secure. CaffTrace is a general wellness planning tool and is not directed to children.

8. Changes to this policy

If app features, SDKs, or legal requirements change, we may revise this policy and update the effective date. Material changes will be communicated through the app or this page when appropriate.