Privacy Policy

Effective date: 24 May 2026 · Last updated: 24 May 2026

This Privacy Policy explains how AiKCalify ("AiKCalify", "we", "us") handles information when you use the AiKCalify mobile application (the "App"). The App is operated by Lars Prins, an independent developer ("Developer").

We've tried to keep this readable. The short version: most of your data stays on your phone, photos are sent to an AI service for food identification and not retained by us, and you can email us to delete what we do hold.

1. Data we collect

1.1 Data you provide

• Profile & goals. Age range, biological sex, height, current and target weight, activity level, dietary preferences, allergies, eating pattern and motivation note. Stored locally on your device.
• Food and weight logs. Meals you log (including photos you choose to capture), weights and activities. Stored locally on your device.
• Support correspondence. If you email support@aikcalify.com, we receive your email address and message content.

1.2 Camera and photos

If you grant camera or photo-library access, you can take or select a picture of a meal. That photo is sent over HTTPS to our AI vision service (currently OpenAI) solely to identify the food items in the image. The photo is not stored on our servers after processing, and is not used to train AI models. A downscaled thumbnail is kept locally on your device alongside the meal log so you can review it later. You can delete any meal at any time from the Diary screen.

1.3 Apple Health (HealthKit)

If you connect Apple Health, the App may read steps, active energy, body mass and dietary energy, and may write dietary energy and body mass that you log in the App, so your data stays in sync across your devices. HealthKit data is never transmitted off your device by AiKCalify and is never shared with any third party. You can revoke access at any time in iOS Settings → Health → Data Access & Devices.

1.4 Subscription and purchase data

Purchases are processed by Apple. We use RevenueCat to verify your subscription status and entitlements. RevenueCat receives a pseudonymous app-user ID, your country, and transaction metadata from Apple — never your name, email or payment details.

1.5 Analytics and advertising attribution

The App uses the following SDKs to understand how features are used and to measure marketing effectiveness:

• Firebase Analytics (Google) — usage events and aggregate funnel data, tied to a Firebase Installation ID.
• Meta SDK (Facebook) — installation and conversion events when AppTrackingTransparency permission is granted; otherwise events are aggregated.
• TikTok Business SDK — installation and conversion events when AppTrackingTransparency permission is granted; otherwise events are aggregated.

These SDKs may receive your IDFV, app version, OS version, device model, country and the timestamp of events. If you decline App Tracking Transparency, the IDFA is not shared and conversion attribution is limited to Apple's SKAdNetwork / AdAttributionKit.

1.6 Crash and diagnostic data

If you've opted in to share analytics with developers in iOS, Apple may forward anonymised crash reports to us via Xcode Organizer.

2. How we use data

• To run the App: calculate your daily calorie target, project weight trends, schedule reminders, and identify food from photos.
• To process subscriptions and grant access to paid features.
• To understand which features are used and to improve the App.
• To measure whether marketing campaigns lead to installs.
• To respond to your support requests.
• To detect abuse and prevent fraud.

3. Legal bases (EU / UK / EEA users)

Where GDPR applies, we rely on the following bases:

• Contract — to provide the service you signed up for.
• Legitimate interests — to keep the App secure, debug issues, and measure aggregate performance.
• Consent — for App Tracking Transparency, push notifications, camera, photos and Health permissions. You can withdraw consent in iOS Settings at any time.
• Legal obligation — to comply with tax and consumer-protection law.

4. Sharing

We do not sell your personal data. We share limited data with:

• OpenAI — meal photos for food identification (not retained by them per their API terms).
• Apple — purchase, subscription and crash data.
• RevenueCat — subscription state.
• Google Firebase — analytics events.
• Meta and TikTok — attribution events (subject to your ATT choice).
• Hosting provider — our website is hosted on infrastructure in the EU.

Each of these is bound by their own terms and acts as a processor or independent controller as appropriate.

5. International transfers

The processors above operate globally. Where data is transferred outside the EEA or UK, we rely on the Standard Contractual Clauses or equivalent safeguards published by each processor.

6. Retention

• On-device data (profile, logs, photos): kept until you delete the meal/entry or uninstall the App.
• Analytics events: up to 14 months in Firebase, then aggregated.
• Subscription records: kept for the lifetime of your subscription plus the period required by tax law (typically 7 years).
• Support emails: kept until the matter is closed, then deleted within 12 months.
• Meal photos sent to OpenAI: not retained on our servers; processed and discarded.

7. Your rights

Depending on where you live you may have the right to:

• Access the personal data we hold about you.
• Correct or delete that data.
• Object to or restrict certain processing.
• Receive a portable copy of your data.
• Withdraw consent at any time.
• Lodge a complaint with your data-protection authority (in the EU/EEA, your national supervisor; in the UK, the ICO).

California residents have additional rights under the CCPA/CPRA including the right to know, delete, correct and opt out of "sharing". We do not sell personal information in the CCPA sense.

To exercise any of these rights, email support@aikcalify.com from the address associated with your account or include enough information for us to identify your records. We respond within 30 days.

8. Children

AiKCalify is not directed to children under 13 (or under 16 in the EEA/UK). We do not knowingly collect personal data from children. If you believe a child has provided us with personal data, contact us and we will delete it.

9. Security

Data in transit is protected with TLS. On-device data is protected by iOS sandboxing and the user's device passcode. No method of electronic transmission or storage is completely secure; we can't guarantee absolute security but we take reasonable measures.

10. Health disclaimer

AiKCalify is a wellness tool, not a medical device. Calorie estimates from photographs are approximations. Do not use the App to manage a medical condition or eating disorder without consulting a qualified clinician. If you're struggling, the App includes a list of eating-disorder support resources under Profile → Resources.

11. Changes to this policy

If we make material changes, we'll update the "Last updated" date above and, where appropriate, notify you in-app or by email.

12. Contact

Lars Prins (Developer of AiKCalify)
Email: support@aikcalify.com
For EU/UK data-protection requests, please mark your email "GDPR request".