Privacy Policy

Last updated: 2026-09-23

VisualMem is an independent educational project that publishes vocabulary-learning video lessons on YouTube, offers the VisualMem mobile app, and operates this website, along with an internal publishing tool ("VisualMem Publisher") that uses YouTube API Services.

This website

• visualmem.com is a static informational site. It sets no cookies and collects no personal data. It uses Cloudflare Web Analytics, a cookie-less, privacy-first script that records aggregate page-view counts only.
• Web fonts are loaded from Google Fonts (fonts.googleapis.com); your browser's request for those font files is subject to Google's Privacy Policy.
• The interactive demo on the homepage plays image and audio files hosted on this site; no data about your interaction is recorded or transmitted. The blog is static text and embeds no third-party widgets.

VisualMem mobile app (iOS and Android)

The VisualMem app teaches vocabulary with images and audio. It has no accounts, no advertising and no in-app purchases during the beta. It is not directed at children under 13.

• Your learning data stays on your device. Your word lists, review history, streak and settings are stored locally on your phone. They are not uploaded to us. Deleting the app deletes this data.
• No analytics, no crash reporting, no advertising. The current version of the app contains no analytics, crash-reporting or advertising SDKs and does not track how you use it. A future version may add Google Firebase (Analytics and Crashlytics) to help us find bugs and understand which features are used; this policy will be updated before that version is released, and you will be able to turn analytics off in the app's settings.
• Problem reports you choose to send. When you use "Report a problem" on a word, the app sends the word, the problem type, the optional note you typed, the app version and a random identifier generated on your device (so we can group reports from the same install) to our server (Cloudflare Workers). Please do not put personal information in the note. We use these reports only to correct our content.
• Content delivery. Images, audio and word lists are downloaded from our content servers on Cloudflare. Like any web server, Cloudflare processes your IP address to deliver the files; we do not use these logs to identify you.
• Notifications. Study reminders are scheduled locally on your device; no push token is sent to us. You can disable them in the app or in your system settings.
• Your choices. Sending a problem report is always optional. To ask for deletion of problem reports sent from your device, write to the address below. We do not sell data and we do not share it with third parties other than our hosting provider (Cloudflare).

VisualMem Publisher (our YouTube API tool)

VisualMem Publisher is an internal automation used solely by the VisualMem channel owner. It does two things: it uploads videos we create to YouTube channels we own, and it checks the publication status of those uploads.

Data we access and store

• OAuth 2.0 tokens for our own channels — granted by the channel owner, stored locally, never shared.
• Video IDs, titles and publish times of our own uploads, stored in a local database for scheduling and verification.
• Retention and refresh: access tokens are short-lived and refreshed on every run; the stored publication status of our uploads is re-checked against the YouTube API when a video is due to go public and again at least every 30 days — any stored API data that is not refreshed within 30 days is deleted. We keep no other data obtained from YouTube API Services.
• We do not access, collect, store or share any data belonging to other YouTube users. The tool has no end users other than the channel owner.

YouTube API Services

• VisualMem Publisher uses YouTube API Services. By interacting with our channels' content you also agree to the YouTube Terms of Service. Google's Privacy Policy is available at policies.google.com/privacy.
• Stored authorization can be revoked at any time via Google security settings: myaccount.google.com/permissions.

Terms of use

All lesson content on our channels and this website (images, audio, video and text) is created by VisualMem and provided free of charge for personal, educational use. VisualMem is not affiliated with, endorsed by, or sponsored by YouTube or Google. The full terms for the website and the app are at visualmem.com/terms.

Contact

Questions about this policy: [email protected]