Privacy Policy

This platform is built and maintained by Mwalimu Ronny Mwenda Best, a Mathematics and Computer Science teacher based in Embu County, Kenya. All 13 lesson topics, the brain games, practice problems, and the Ask Mwalimu feature are completely free. We keep the platform free by displaying education-appropriate advertisements through Google AdSense.

This Privacy Policy explains exactly what data is collected (very little), why it is collected, who can see it, and how you can control it. We have written it in plain language alongside the legal requirements so that students, parents, and teachers can all understand it clearly.

As an educational website, we collect the absolute minimum data necessary to operate and improve the platform. Here is a complete list of everything collected:

• Anonymous Usage Data: Which math topics and games are accessed, used solely to improve content quality. No individual is identifiable from this data.
• Technical Information: Browser type and device type — collected automatically by web servers for compatibility purposes. This is never linked to any individual and is not stored by us.
• Ad-Related Data (Google AdSense): Google may collect anonymised data via cookies and web beacons to serve age-appropriate advertisements. See Section 4 for full details of what Google collects and how to opt out.
• Local Game Progress: Your game scores, levels, and streaks are saved in your browser's localStorage. This data never leaves your device — it is never transmitted to our servers or to Google. See Section 8.

For users in the European Economic Area (EEA), United Kingdom, and Switzerland, we process personal data only where we have a lawful basis under GDPR Article 6. The bases we rely on are:

• Consent — Article 6(1)(a): We obtain your informed consent before placing advertising cookies via Google AdSense. The cookie consent banner appears on your first visit. You may withdraw this consent at any time — see Section 5.
• Legitimate Interests — Article 6(1)(f): We use anonymous, aggregated analytics to understand which math content is most helpful to students. No personal data is involved; individuals cannot be identified from this data.
• Legal Obligation — Article 6(1)(c): Where required by applicable Kenyan, EU, UK, or US law, we may process data to comply with legal obligations.

For users in Kenya, processing is conducted in accordance with Kenya's Data Protection Act 2019, which aligns substantially with GDPR principles including data minimisation, purpose limitation, accuracy, and the rights of data subjects.

Our website uses Google AdSense (operated by Google LLC, 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA) to display advertisements. Revenue from these ads funds the free provision of all math lessons, games, and tools on this platform.

• Cookies: Google AdSense places small text files ("cookies") on your device to analyse site usage and serve relevant, age-appropriate advertisements.
• Web Beacons: Small invisible pixel images may be used alongside cookies to measure ad performance and impressions.
• Data Transmitted: Information generated (including your anonymised IP address) may be transmitted to and stored on Google's servers, which may be in the United States or other countries.
• Google's Use: Google may evaluate this data, compile usage reports, and share information with third parties only where required by law or where such parties process data on Google's behalf under data processing agreements.
• Auto Ads: We use Google's Auto Ads feature, which automatically places ads in appropriate locations. Ads never appear inside active lesson content, game interfaces, formula displays, or worked examples.
• No Manual Ad Divs: We do not insert manual ad placement code. Google determines placement automatically within our content layout.

You may refuse advertising cookies by adjusting your browser settings, using the consent banner on this site, or using a browser extension such as uBlock Origin. Please note that declining cookies will not affect your access to any educational content on this platform.

When you first visit this website, a cookie consent banner appears and asks for your permission before any advertising cookies are placed. You can freely accept or decline non-essential (advertising) cookies. Your choice is remembered in localStorage so the banner does not reappear on every visit.

To withdraw or change your consent at any time, follow these steps:

1. Clear your browser cookies and site data — go to your browser's Settings → Privacy & Security → Clear browsing data → Cookies and site data. After clearing, the consent banner will reappear on your next visit.
2. Block third-party cookies in your browser — most browsers allow this under Settings → Privacy. This prevents advertising cookies from being placed while you browse.
3. Opt out of Google personalised ads — visit adssettings.google.com to turn off personalised advertising across all Google services.
4. Use a privacy-focused browser extension — tools such as uBlock Origin, Privacy Badger, or Ghostery block advertising cookies automatically across all websites.
5. Use the NAI opt-out tool — visit optout.networkadvertising.org to opt out of interest-based advertising from NAI member companies.

• No personal data from children under 13 is knowingly collected, stored, or processed at any time.
• Advertising is filtered for child-safe, age-appropriate content at all times through Google AdSense's content policies.
• No behavioural targeting of users identified as minors. Google's SafeSearch and child-safe ad filters are applied.
• No registration or profile creation is required or offered — children can access all content anonymously.
• Parents and guardians may contact us to review, request correction of, or request deletion of any information related to their child — we will respond within 5 business days.
• All lesson content is reviewed by Mwalimu Ronny personally to ensure it is age-appropriate and curriculum-appropriate at each level.

If you believe a child under 13 has provided personal information through this platform, please contact us immediately using the details in Section 10. We will investigate and delete any such information promptly.

For parents, teachers, and school administrators, here is a complete explanation of how we ensure advertising does not disrupt or compromise the learning environment:

• Ads are filtered to display child-safe and education-appropriate content only through Google AdSense's standard and sensitive category filters.
• No pop-ups, auto-play video ads, expanding ads, or interstitial ads are used at any time.
• Ads are placed by Google Auto Ads only, in clearly separated areas — never overlapping or embedded inside lesson sections, worked examples, formula blocks, game interfaces, or interactive content.
• We never ask users to click advertisements and never offer incentives for clicking ads — doing so violates AdSense policy and we strictly comply.
• All ad revenue goes entirely toward server costs and keeping all math content free. Mwalimu Ronny does not profit from user data.
• We do not use retargeting or remarketing lists to track users across the web.
• Ads placed by Google AdSense comply with Google's Publisher Policies, which prohibit ads for alcohol, gambling, adult content, violence, and other categories inappropriate for a school-age audience.

Our mathematics games and progress tracker save data using your browser's localStorage — a standard, widely supported browser technology. This is different from a cookie: localStorage data is stored entirely on your own device and is never transmitted anywhere.

• What is stored: Game level, high scores, streak counts, topic visit history, and badge milestones.
• Where it is stored: Entirely on your device, inside your browser's storage for this domain only.
• Who can read it: Only JavaScript code running on this website, in your own browser. No server, no Google, no third party.
• It is not a cookie and cannot be read by Google AdSense or any advertising network.
• How to delete it: Go to your browser's Settings → Privacy → Site Data → find bestronny.netlify.app → Delete. Alternatively, clearing all site data in your browser will remove it.
• Effect of deleting: Your game scores and progress will reset. Lesson content and all platform features remain fully accessible.

Depending on your location, you may have the following rights under applicable data protection law (GDPR, Kenya Data Protection Act 2019, CalOPPA, or COPPA):

To exercise any of these rights, contact us via the details in Section 10. We will respond within 30 days of receiving a valid request. No fee is charged for exercising your rights.

For any privacy questions, data access requests, parental enquiries about a child's data, concerns about advertising content, or any other privacy matter, please use the contact details below:

We may update this Privacy Policy from time to time to reflect changes in applicable law, our data practices, or Google AdSense requirements. When we make changes:

• The "Last Updated" date at the top of this page will be revised to reflect the date of the most recent change.
• Material changes (changes that significantly affect how your data is used) will be indicated by a prominent notice on our home page for at least 30 days.
• Minor changes (corrections, clarifications) will be updated silently but the Last Updated date will still be revised.
• Continued use of the platform after the effective date of any updated policy constitutes your acceptance of the revised terms.
• If you have previously given consent to advertising cookies and we make a material change to how those cookies are used, we will request your consent again via the banner.

We encourage you to review this page periodically. You can bookmark it or find it linked in the footer of every page on the platform.