Your privacy is important to us. This policy explains how we collect, use, and protect your information.
Last updated: June 2026
RGBlind ("we," "our," or "us") operates the website rgblind.com (the "Service"). This Privacy Policy informs you of our policies regarding the collection, use, and disclosure of personal data when you use our Service and the choices you have associated with that data.
While using our Service, we may ask you to provide us with certain personally identifiable information that can be used to contact or identify you ("Personal Data"). This may include:
Important: Images you upload or capture are processed entirely within your browser using JavaScript and Web Workers. We do not upload, store, or have access to your images on our servers. All image processing happens locally on your device.
Our Color Blindness Simulator tool (/color-blindness-simulator) includes a webcam mode that requests access to your device's camera. This feature allows you to test real-time color vision simulation using your camera feed.
Camera Usage:
We may also collect information on how the Service is accessed and used ("Usage Data"). This Usage Data may include:
We use Google Analytics to analyze the use of our website. Google Analytics gathers information about website use by means of cookies. The information gathered relating to our website is used to create reports about the use of our website.
Google's privacy policy is available at: https://www.google.com/policies/privacy/
We use Google AdSense to display advertisements on our website. Google AdSense is an advertising service provided by Google LLC. Google AdSense uses cookies to serve ads based on your prior visits to our website or other websites on the Internet.
Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website or other websites. Google's use of advertising cookies enables it and its partners to serve ads to you based on your visit to our sites and/or other sites on the Internet.
You may opt out of personalized advertising by visiting Google Ads Settings. Alternatively, you can opt out of a third-party vendor's use of cookies for personalized advertising by visiting www.aboutads.info.
Note: If you have not opted out of third-party ad serving, the cookies of other third-party vendors or ad networks may also be used to serve ads on our site. You can visit those ad network websites to opt out of personalized advertising cookies (if the vendor or ad network offers this capability). Alternatively, you can visit www.aboutads.info to opt out of third-party vendors' use of cookies for personalized advertising.
In addition to the website rgblind.com, we publish the RGBlind Android application (packagecom.rgblind.app) on the Google Play Store. This section describes how the mobile app handles your data. Where the website and the app differ, the disclosures in this section govern the mobile app.
The camera permission is requested only when you open the live Camera tab. Frames are converted into a filtered preview and immediately discarded — they are never written to storage or transmitted off the device. When you pick a photo from your gallery and tap Share, a temporary PNG of the filtered image is written to the app's private cache directory so the system share sheet can read it; that file never leaves the device unless you yourself choose a destination in the share sheet.
The Firebase Analytics SDK (a Google service) is embedded in the app to give us anonymized usage statistics — how many people open the app, which countries they're in, which tabs they use, and how long sessions last. Firebase automatically collects the following on each session:
Firebase Analytics does not collect your name, email, photos, or the contents of your camera. We use the data only in aggregate, to understand how the app is used and to prioritize improvements. You can opt out of analytics collection at any time by disabling "Personalized ads" in your Android settings or by uninstalling the app. See Google's privacy policy: firebase.google.com/support/privacy.
The Google Mobile Ads SDK embedded in the app collects the following from your device on each ad request, in order to display and measure ads:
RGBlind itself does not receive, store, or forward any of the data above. It is transmitted by the Google Mobile Ads SDK directly to Google. See Google's policy for full details: policies.google.com/technologies/ads.
CAMERA — for the live preview on the Camera tab. Revoke at any time in Settings → Apps → RGBlind → Permissions.INTERNET — for ad requests in the release build (also used by Flutter hot-reload in debug builds, which are not distributed on Google Play).No other dangerous permissions are requested. In particular, the app does not request RECORD_AUDIO, ACCESS_FINE_LOCATION, READ_EXTERNAL_STORAGE, READ_CONTACTS, or READ_PHONE_STATE.
When you use the app from the European Economic Area, the United Kingdom, or Switzerland, the first time the app loads ads it presents a consent form powered by Google's User Messaging Platform (UMP). The form asks whether you consent to personalized advertising. Your choice is stored on your device and respected on every subsequent ad request. You can change your choice at any time from the in-app Privacy screen.
The mobile app is not directed at children under the applicable minimum age in your country (13 in most jurisdictions, 16 in parts of the EEA). The Google Mobile Ads SDK is initialized without the "Tag For Child-Directed Treatment" (TFCD) and "Tag For Users Under the Age of Consent" (TFUA) flags set, because the app is intended for a general audience. We do not knowingly collect personal information from children.
RGBlind retains nothing about you on its own servers — it has none. Data transmitted to Google by the Mobile Ads SDK is retained per Google's published retention rules.
We use cookies and similar tracking technologies to track activity on our Service and hold certain information. Cookies are files with small amounts of data which may include an anonymous unique identifier.
You can instruct your browser to refuse all cookies or to indicate when a cookie is being sent. However, if you do not accept cookies, you may not be able to use some portions of our Service.
We use the collected data for various purposes:
We may disclose your Personal Data in the following situations:
Important: We never share, sell, or access your uploaded images. All image processing happens locally in your browser.
The security of your data is important to us, but remember that no method of transmission over the Internet, or method of electronic storage is 100% secure. While we strive to use commercially acceptable means to protect your Personal Data, we cannot guarantee its absolute security.
You have certain rights regarding your personal data:
To exercise these rights, please contact us using the information provided below.
Our Service may contain links to other websites that are not operated by us. If you click on a third-party link, you will be directed to that third party's site. We strongly advise you to review the Privacy Policy of every site you visit. We have no control over and assume no responsibility for the content, privacy policies, or practices of any third-party sites or services.
Our Service does not address anyone under the age of 13 ("Children"). We do not knowingly collect personally identifiable information from anyone under the age of 13. If you are a parent or guardian and you are aware that your child has provided us with Personal Data, please contact us. If we become aware that we have collected Personal Data from children without verification of parental consent, we take steps to remove that information from our servers.
Your information, including Personal Data, may be transferred to — and maintained on — computers located outside of your state, province, country, or other governmental jurisdiction where the data protection laws may differ from those of your jurisdiction. Your consent to this Privacy Policy followed by your submission of such information represents your agreement to that transfer.
We may update our 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 at the top of this Privacy Policy. You are advised to review this Privacy Policy periodically for any changes.
If you have any questions about this Privacy Policy, please contact us:
If you are from the European Economic Area (EEA), you have additional rights under the General Data Protection Regulation (GDPR). We process your personal data based on legitimate interests for analytics and advertising purposes. You have the right to object to this processing.
If you are a California resident, you have rights under the California Consumer Privacy Act (CCPA), including the right to know what personal information we collect, the right to delete your personal information, and the right to opt-out of the sale of your personal information. We do not sell personal information.