Privacy Policy

Last updated: April 15, 2026

MBTI Test - By A Photo ("we", "our", or "the App") is operated at mbti.lotlot.ai. This Privacy Policy explains how we collect, use, and protect your information when you use our mobile application.

Information We Collect

We collect minimal information to provide our service:

Privacy About Your Photo

Your privacy regarding uploaded photos is extremely important to us:

Privacy About Facial Data

This section provides a complete and transparent answer to the questions reviewers and users commonly ask about our handling of facial data.

What face data does the app collect?

The App does not extract, compute, or store any facial templates, faceprints, face geometry, face embeddings, or any other biometric identifiers. The only "face data" involved is the photo image itself, which you voluntarily provide by uploading it from your camera or photo library. We do not run any face detection, face recognition, or face landmark extraction on our own servers.

Provide a complete and clear explanation of all planned uses of the collected face data.

The uploaded photo is used for one purpose only: to generate your MBTI personality result. The image is forwarded once, in real time, to a third-party vision AI model (currently Google Gemini), which interprets visual cues such as expression, posture, and styling and returns a textual personality analysis. The photo is never used for advertising, profiling, training AI models, building any biometric database, or any purpose beyond producing your single MBTI result.

Will the face data be shared with any third parties? Where will this information be stored?

The photo is shared only with the AI model provider that performs the inference (currently Google Gemini), and only for the duration of that single inference call. We do not store the photo on our servers or in any database. The AI model provider processes the image in accordance with its own privacy and data handling policies; we do not authorize the provider to retain the image for training or any secondary use beyond returning the result.

How long will face data be retained?

We retain the photo for zero seconds beyond the inference call. As soon as the AI model returns the MBTI result, the in-memory image data on our infrastructure is discarded. The photo is never written to persistent storage, logs, or backups under our control.

How We Use Your Information

Data Storage and Security

Your analysis history is stored locally on your device using the App's local storage. We use encryption for data transmitted between the App and our servers. Your anonymous device identifier and quota information are stored securely on our cloud infrastructure.

No Account System

The App does not require you to create an account, provide an email address, or sign in. All identification is anonymous and device-based.

Third-Party Services

The App uses the following third-party services:

Children's Privacy

The App is not directed to children under 13. 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 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@lotlot.ai.