Privacy Policy

Your privacy is important to us. This policy explains how we collect, use, and protect your information.

📅 Last Updated

This Privacy Policy was last updated on August 5, 2026. We may update this policy from time to time, and we will notify you of any material changes by posting the new Privacy Policy on this page.

🏢 About Mile150

Mile150 is a mobile app development studio based in New York City, United States. We are committed to protecting your privacy and ensuring transparency about how we handle your data.

Data Processing Location: All data collected through our apps is processed and stored in the United States of America. By using our apps, you consent to the transfer of your information to the United States.

📊 Information We Collect

We collect information to provide, improve, and personalize our services. The types of information we collect depend on which apps you use:

1. Information You Provide

  • Account information (username, email address, if you create an account)
  • User-generated content (scores, game progress, preferences)
  • Feedback and support communications

2. Automatically Collected Data

  • Device information (device type, operating system version, unique device identifiers)
  • Usage data (app features used, time spent in app, interactions)
  • Performance data (crash reports, error logs)
  • IP address and general location information

3. Advertising Data (AdMob)

Important: Advertising data collection through Google AdMob applies only to the following apps:

Location Guesser
Location Guesser: GeoGuesser — This app uses Google AdMob to display advertisements. AdMob may collect advertising data as described below.
5th Grader Quiz
Are You Smarter Than a Fifth? 5th Grader Trivia — This app uses Google AdMob to display advertisements. AdMob may collect advertising data as described below.

For these apps, Google AdMob may collect:

  • Advertising identifiers (IDFA on iOS, AAID on Android)
  • Device information for ad personalization
  • Interaction data with advertisements
  • Approximate location for ad targeting

Other Apps: Our other apps do not use advertising services and do not collect advertising data.

4. Photos and Incidental Face Imagery (Banana AI)

For our Banana AI app, users may voluntarily select photos from their photo library (or attach an optional reference image) to perform an AI edit or generation. Those photos may incidentally contain faces. Details of collection, use, sharing, storage, retention, and deletion of this face-related imagery are explained in the dedicated Face Data (Banana AI) section below.

🤳 Face Data (Banana AI)

This section explains how Banana AI handles face-related imagery. It is the primary disclosure for Apple App Review and users regarding collection, use, disclosure, sharing, retention, and deletion of face data.

What Face Data Banana AI Collects

Banana AI does not collect Face ID data, TrueDepth facial meshes, facial geometry templates, or biometric identifiers used for authentication. The only face-related data we process is imagery that may appear in photos the user voluntarily selects from their photo library (or attaches as an optional reference image) in order to perform an AI edit or generation. Faces are incidental content inside those user-chosen photos, not a separate face-scan product.

Use of Face Data

Photos that may contain faces are used only to fulfill the user’s requested AI edit or generation (for example hair, age, makeup, clothing try-on, meet-famous composites, remove objects, restore), display the result in-app, and optionally keep the result in the on-device Gallery. We do not use face imagery for advertising profiles, selling personal data, or training our own models.

Sharing with Third Parties

To generate results, the selected image(s) and text instructions are sent over HTTPS to AI processors acting on our behalf for that request: Google Gemini API (primary) and, only if needed as a fallback, xAI Grok Imagine API. We do not sell face data or share photos with advertisers. Face data is shared only with these processing providers as required to complete the user’s edit.

Where Face Data Is Stored

Images are processed by those providers to return a result. Processing occurs on those providers’ servers (which may include the United States and other regions where they operate). Successful exports saved in Gallery are stored locally on the user’s device in the app sandbox (Application Support). We do not operate a separate cloud photo album of user face images. Before upload, the app re-encodes images and strips common EXIF/GPS metadata. Supabase is used for category catalog, referral, and push token features and is not used to store face photos or Gallery exports.

How Long Face Data Is Retained

Banana AI does not keep a permanent developer-side archive of face photos. Provider retention follows their API terms:

  • Google Gemini (paid API): limited retention for safety and prohibited-use detection per Google’s Gemini API terms. Google states that paid API prompts, images, and responses are not used to improve Google products.
  • xAI (fallback): typically up to 30 days for abuse auditing by default, then deleted. xAI states it does not train on API inputs/outputs without permission.
  • On-device Gallery: exports remain until the user deletes them, clears app data, or uninstalls the app.

Banana AI does not intentionally retain face photos permanently in the cloud.

Deletion of Face Data

Users can delete Gallery items in-app (this removes local app copies). Uninstalling the app removes local Gallery storage. Photos previously saved to Apple Photos are not deleted by removing a Gallery item. Users may also contact nils@steffmann.com for privacy or deletion requests.

Summary: Banana AI does not scan faces for biometrics. Faces appear only as incidental content in user-selected photos used to fulfill an AI edit. Images are sent securely to Google Gemini (and xAI as fallback) solely to complete that request; lasting copies the user keeps remain on-device in Gallery.

🔒 How We Use Your Information

We use the information we collect for the following purposes:

  • Service Delivery: To provide, maintain, and improve our apps and services
  • Personalization: To customize your experience and provide relevant content
  • Analytics: To understand how users interact with our apps and identify areas for improvement
  • Advertising: To display relevant advertisements in apps that use AdMob (Location Guesser and 5th Grader Quiz only)
  • Support: To respond to your inquiries and provide customer support
  • Legal Compliance: To comply with applicable laws and regulations

🤝 Data Sharing and Disclosure

We do not sell your personal information. We may share your information in the following circumstances:

  • Service Providers: We work with third-party service providers (such as Google AdMob for advertising, and for Banana AI the Google Gemini API and xAI Grok Imagine API as AI processors) who help us operate our apps. These providers are contractually obligated to protect your information. Face-related photo processing for Banana AI is described in Face Data (Banana AI).
  • Legal Requirements: We may disclose information if required by law or in response to valid legal requests
  • Business Transfers: In the event of a merger, acquisition, or sale of assets, your information may be transferred as part of that transaction

Google AdMob: For apps using AdMob, Google's advertising services are subject to Google's Privacy Policy. You can opt out of personalized advertising in your device settings.

🛡️ Data Security

We implement appropriate technical and organizational measures to protect your personal information against unauthorized access, alteration, disclosure, or destruction. However, no method of transmission over the internet or electronic storage is 100% secure.

👤 Your Rights and Choices

Depending on your location, you may have certain rights regarding your personal information:

  • Access: Request access to your personal information
  • Correction: Request correction of inaccurate information
  • Deletion: Request deletion of your personal information
  • Opt-Out: Opt out of personalized advertising through your device settings
  • Data Portability: Request a copy of your data in a portable format

To exercise these rights, please contact us using the information provided below.

👶 Children's Privacy

Our apps are not directed to children under the age of 13. We do not knowingly collect personal information from children under 13. If you believe we have collected information from a child under 13, please contact us immediately, and we will take steps to delete such information.

🌍 International Users

If you are using our apps from outside the United States, please note that your information may be transferred to, stored, and processed in the United States where our servers are located. By using our apps, you consent to the transfer of your information to the United States.

🔄 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. We encourage you to review this Privacy Policy periodically for any changes.

Contact Us

If you have any questions about this Privacy Policy or our data practices, please contact us:

📧 Banana AI privacy / deletion: nils@steffmann.com
📍 New York City, NY, USA

Last Updated: August 5, 2026

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