Privacy Policy — Jitterbug

Jitterbug ("we," "our," or "the app") is a caffeine tracking app for iOS. We built it to be simple and private. This policy explains what information we collect, why we collect it, and how it is handled.

What we collect

We collect only what is necessary for the app to work:

Caffeine logs — drink name, drink type, caffeine amount, and timestamps you enter.
User profile — your display name, daily baseline, caffeine goal, taper pace, bedtime, and notification preferences.
Device identifiers — anonymous device IDs used only for debugging crashes and subscription state (no name, email, or contact info attached).

We do not collect your legal name, email address, or any other personally identifiable information unless you contact us directly at support@kyvera.app.

How your data is stored

Your data is stored locally on your device using on-device encrypted key-value storage. Jitterbug is offline-first — the app is fully functional without an internet connection, and your caffeine logs never leave your device unless you explicitly enable a cloud sync feature in a future version.

We do not sell, rent, or share your personal data with third parties.

Apple Health integration

If you grant permission, Jitterbug writes your caffeine intake to Apple Health so it can appear alongside your other health data. The only data we read back from Apple Health is the caffeine entries Jitterbug itself created — we do not read your Apple Health data from other sources, and we never transmit any health data off your device. You can revoke Apple Health access at any time in the iOS Health app.

AI-assisted drink identification

Jitterbug offers an optional "scan a drink" feature. When you use it, an image of the drink (or a short text description) is sent to one or more third-party AI providers — Google Gemini, Groq, and Cohere — which return the drink name and estimated caffeine content.

These providers process the request to generate a response. No personal identifiers are included in the request. You can avoid this feature entirely by logging drinks manually.

Google Gemini: policies.google.com/privacy
Groq: groq.com/privacy-policy
Cohere: cohere.com/privacy

Subscriptions

Jitterbug offers optional paid subscriptions processed entirely through Apple's In-App Purchase system. We use RevenueCat to manage subscription state and entitlements. RevenueCat receives anonymized purchase receipts from Apple — no payment card information. We never see or store your payment details at any point.

You can review RevenueCat's privacy practices at revenuecat.com/privacy.

Analytics

At launch, Jitterbug does not send any usage analytics to a third-party service. If we add privacy-respecting anonymous analytics in the future, this policy will be updated and you will be notified before the change takes effect.

Children's privacy

Jitterbug is not directed at children under 13. We do not knowingly collect data from children. If you believe a child has provided us information, please contact us and we will delete it promptly.

Changes to this policy

We may update this privacy policy from time to time. When we do, we will update the "Last updated" date at the top of this page. Continued use of the app after changes means you accept the updated policy.

Contact

Questions or concerns? Reach us at support@kyvera.app.