Privacy Policy
Last updated: August 7, 2026
Introduction
Sigma AI Limited ("we", "our", or "us") operates the NutriOn mobile application. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our application.
Information We Collect
Personal Information
When you create an account, we may collect your email address, name, age, gender, height, weight, and fitness goals to provide personalized nutrition recommendations.
Usage Data
We collect information about how you use the app, including food logs, photos you take for analysis, and interaction patterns to improve our services.
Device Information
We may collect device type, operating system, unique device identifiers, and mobile network information for app optimization, troubleshooting, and advertising measurement. On iOS, the advertising identifier is available only when you allow tracking through Apple's system permission.
How We Use Your Information
- Provide personalized nutrition analysis and recommendations
- Improve our AI food recognition accuracy
- Send you relevant notifications and updates
- Respond to your inquiries and support requests
- Analyze usage patterns to improve our services
- Measure advertising performance and attribute registrations and subscriptions
- Comply with legal obligations
Data Security
We implement appropriate technical and organizational security measures to protect your personal information. All data is encrypted in transit and at rest. However, no method of transmission over the Internet is 100% secure, and we cannot guarantee absolute security.
Data Sharing
We do not sell, trade, or rent your personal information to third parties. We may share limited advertising measurement events with Adjust, Meta, and TikTok when permitted. These events may include registration, paywall views, checkout starts, trial starts, subscriptions, renewals, refunds, amount, currency, plan type, and an event identifier. We do not send food logs, meal photos, health or nutrition data, Apple receipts, transaction numbers, names, or email addresses to these advertising services. We may also disclose information if required by law or to protect our rights.
Advertising Measurement and Tracking
On iOS, we ask for permission using Apple's App Tracking Transparency prompt. If you allow tracking, Adjust, Meta, and TikTok may receive real-time commercial events and use the advertising identifier to measure campaigns and improve ad delivery.
If you decline or restrict tracking, we do not send identifiable user-level events directly to Meta or TikTok. Adjust may still receive events without the advertising identifier and may provide aggregated attribution, including through SKAdNetwork. You can change this permission at any time in iOS Settings.
Your Rights
- Access and receive a copy of your personal data
- Request correction of inaccurate data
- Request deletion of your data
- Object to processing of your data
- Data portability
You can delete your account and all associated data at any time from the app settings. See our Data Deletion Instructions.
Third-Party Services
Our app uses third-party services including Google Cloud (for AI processing), Firebase (for authentication and analytics), Apple (for payments), Adjust (for attribution), and Meta and TikTok (for advertising measurement when authorized). These services have their own privacy policies governing the use of your information.
Children's Privacy
Our service is not intended for users under 13 years of age. We do not knowingly collect personal information from children under 13.
Changes to This Policy
We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last updated" date.
Contact Us
If you have any questions about this Privacy Policy, please contact us at support@sigmaaihealth.com