Colorino · Hano Studio

Privacy Policy

Effective date: July 10, 2026

1Introduction

Colorino ("App", "we", "us", or "our") is a mobile application that turns your photos and text descriptions into coloring pages and AI-generated artwork. This Privacy Policy explains how we collect, use, store, and protect information when you use Colorino on iOS and Android.

Colorino does not require you to create an account or sign in. You can use the app without providing your name, email address, or phone number.

2Information We Collect

2.1 Information You Provide

2.2 Information Collected Automatically

2.3 Information Stored on Your Device

Most of this data is stored locally on your device. Uninstalling the app may delete much of this local data.

3Device Permissions

PermissionPurpose
CameraTake photos for AI generation
Photo Library (read)Select photos from your device
Photo Library (write)Save generated images to your photo library (when you choose to)
NotificationsSend updates on generation progress and important information
InternetAI processing, Premium verification, and data synchronization

You may deny or revoke these permissions in your device settings. Some features may not work without the relevant permission.

4How We Use Your Information

We use your information to:

  1. Provide the service: Process your images and prompts, generate coloring pages and AI artwork, and display your personal gallery.
  2. Manage Premium subscriptions: Verify, activate, renew, and restore purchases.
  3. Send push notifications: Notify you about generation progress and important updates (with your permission).
  4. Improve the app: Analyze crashes, fix bugs, and improve performance and security.
  5. Protect our services: Use Firebase App Check to help prevent API abuse.
  6. Provide support: Respond to your requests via email.

We do not sell your personal information to third parties.

5Image and AI Content Processing

Before generating your first image, the app asks you to confirm that your photo will be sent to Google for AI processing. You can decline and choose not to use the AI generation feature.

When you submit a photo or text prompt, it is transmitted to our servers (hanodecor.com), which forward it to Google's Gemini API (Gemini 2.5 Flash Image) for AI image processing. Google processes this content solely to generate your output image, in accordance with the Gemini API Additional Terms of Service and Google Privacy Policy.

Output images are stored on our servers and/or your device so you can view, share, print, or save them. We do not publish your images or prompts publicly unless you choose to share them yourself.

We encourage you not to upload sensitive images (such as ID documents, medical information, or images of minors without proper consent).

6In-App Purchases

Colorino offers Premium subscriptions (weekly and yearly) through:

We do not store your payment card or banking details. All payments are processed by Apple or Google under their respective privacy policies. We receive only the data necessary to verify your purchase (product ID, transaction ID, and receipt/token).

Restore Purchases is available in Settings and uses the same Apple ID or Google Account used for the original purchase.

7Third-Party Services

We use the following third-party services, each governed by its own privacy policy:

ServicePurpose
Google Gemini APIAI image generation from your photos and prompts
Firebase (Google)Push notifications, crash reporting (Crashlytics), API security (App Check)
Apple App StorePayment processing and subscription management (iOS)
Google PlayPayment processing and subscription management (Android)
Google FontsTypography displayed in the app

For more information, please review the Gemini API Terms, Firebase Privacy Policy, Apple Privacy Policy, and Google Privacy Policy.

8Data Retention and Security

9Children

Colorino is a creative app suitable for various ages, but it is not directed at children under 13 for the purpose of knowingly collecting personal information. If you are a parent or guardian and believe your child under 13 has provided us with personal information, please contact us at contact@hano.to and we will take steps to delete such information.

10Your Rights

Depending on your location, you may have the right to:

To delete local data: Remove images in your Profile gallery or uninstall the app.

To request deletion of server-side data: Email contact@hano.to with your Device ID (found in Settings → User ID).

11International Data Transfers

Your data may be processed in Vietnam, the United States, and/or other countries where our servers and service providers (including Google) operate. We apply appropriate safeguards when transferring data across borders.

12Changes to This Policy

We may update this Privacy Policy from time to time. The latest version will always be available at this page with an updated effective date. Your continued use of Colorino after any changes constitutes your acceptance of the updated policy.

13Contact Us

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