1. Who We Are

TekkieStack is a product of Aperintel. "We", "us", or "our" refers to Aperintel. Please use our contact form in the Help & Support section.

2. Data We Store Locally on Your Device

All of the following is stored only on the device you use — in the browser's IndexedDB storage. It is never transmitted to Aperintel Ltd or any server.

• First name and chosen avatar emoji
• Year group (e.g. Year 5)
• A hashed PIN (we store a one-way hash, never the PIN itself)
• Learning progress — lessons completed, phases, XP points, badges
• Code projects saved in the editor
• Typing stats — words per minute, session count
• Streak and daily challenge history

We do not collect: full names, email addresses, phone numbers, school names, location, photographs, biometric data, or any behavioural tracking data.

3. Data Sent to Third Parties

Anthropic (AI Lab — Y5+ only, disabled by default)

When the optional online AI Lab is enabled for Year 5+ learners, the text of the coding question is sent to Anthropic's API. Before sending, our safety layer strips all personal information. The learner's name, year group, device ID, and school are never included in API calls. Anthropic's privacy policy: anthropic.com/privacy

EmailJS (Support contact form)

When you submit the support form, your message and optional name are routed securely to the Aperintel support team. No profile data or learning progress is included. EmailJS privacy policy: emailjs.com/legal/privacy-policy

Google Fonts

The app loads fonts from fonts.googleapis.com. Google's servers receive a standard HTTP request that includes your IP address and browser type — this is normal for any website that uses Google Fonts. No cookies are set. You can disable Google Fonts on the Cookie & Storage Policy page to use system fonts instead.

4. Children's Privacy

• UK GDPR & Children's Code: We comply with the UK GDPR and the ICO's Age Appropriate Design Code (Children's Code).
• Data minimisation: We collect only what is necessary for the product to function.
• No profiling: We do not profile children, run advertising, or make automated decisions about learners.
• No social features: There are no public profiles, no peer comparisons, and no sharing of learner data between devices.
• AI safety: Year 3–4 children cannot access the online AI at all. Year 5+ can only access it when a parent or teacher enables it, and personal information is always stripped before queries are sent.
• COPPA: TekkieStack does not collect personal information from children on any server, so COPPA's operator requirements do not apply in Release 1.

5. Your Rights

Because all learner data is stored locally on your device, you are the data controller of that information. You can exercise full control at any time:

• Access: All data is visible within the Guardian View feature.
• Deletion: Use the "Clear All My TekkieStack Data" button on the Cookie & Storage Policy page, or clear site data in your browser settings. Deletion is immediate and complete.
• Portability: The Portfolio Generator exports your data as a downloadable HTML file.

For data sent to third parties (support emails), please use the Help & Support contact form.

1. Acceptance of Terms

By accessing or using TekkieStack, you agree to be bound by these Terms of Use. If you allow a child to use TekkieStack, you accept these Terms on their behalf. If you do not agree, please do not use the platform.

2. Who Can Use TekkieStack

TekkieStack is designed for children aged 7–16 (Year 3–11) under the supervision of a parent, guardian, or teacher. Adults may also use the platform for personal learning. Commercial use requires a separate written agreement with Aperintel — please contact us via the Help & Support form.

3. Acceptable Use

You agree not to:

• Attempt to bypass, circumvent, or disable the AI safety filters or age restrictions
• Use the AI Lab to generate content unrelated to coding, or to produce harmful, offensive, or inappropriate content
• Introduce malicious code, scripts, or content into the platform
• Reverse-engineer, decompile, or disassemble any part of TekkieStack for the purpose of creating a competing product or redistributing the code
• Host a public copy of TekkieStack under a different domain or brand name without written permission from Aperintel Ltd
• Remove, obscure, or alter copyright notices, attributions, or Aperintel Ltd branding within the application
• Use TekkieStack in any way that violates applicable laws or regulations

4. Parental and Teacher Responsibility

TekkieStack is not a childcare or supervision service. Parents and guardians are responsible for supervising their children's use of the platform and for ensuring it is appropriate for their individual child's needs. Teachers are responsible for appropriate classroom deployment in line with their school's safeguarding and digital use policies.

5. Intellectual Property

All source code, design, curriculum content, lesson materials, AI prompts, branding, and documentation are the intellectual property of Aperintel Ltd and are protected by copyright law. Nothing in these Terms grants you any right to use Aperintel Ltd's intellectual property except as expressly permitted.

Your content: You retain ownership of all code projects you create within the platform. Aperintel Ltd makes no claim over learner-generated content.

6. Disclaimer of Warranties

TekkieStack is provided "as is" and "as available" without warranties of any kind, express or implied. Aperintel Ltd does not warrant that the platform will be uninterrupted, error-free, or free of viruses or other harmful components. The platform is provided for educational purposes and is not a substitute for professional educational assessment or curriculum delivery.

7. Limitation of Liability

To the fullest extent permitted by applicable law, Aperintel Ltd shall not be liable for any indirect, incidental, special, consequential, or punitive damages, including but not limited to loss of data, arising from your use of or inability to use TekkieStack. Aperintel Ltd's total liability for any claims shall not exceed £100.

8. Changes to These Terms

We may update these Terms from time to time. The "Last updated" date at the top of this page will reflect any changes. Continued use of TekkieStack after changes are posted constitutes your acceptance of the updated Terms.

9. Governing Law

These Terms are governed by and construed in accordance with the laws of England and Wales. Any disputes arising under these Terms shall be subject to the exclusive jurisdiction of the courts of England and Wales.

1. We Use No Cookies

TekkieStack does not set any cookie files on your device — not session cookies, not persistent cookies, not tracking cookies, not advertising cookies. If you inspect your browser's cookie store for this site, it will be empty.

The "cookie banner" you see when you first visit is required by UK and EU law for any site that uses browser storage. We show it to be transparent about the storage we do use, even though it is not technically cookies.

2. Browser Storage We Use

IndexedDB — Learning data

Purpose: stores your learner profiles, lesson progress, XP, badges, code projects, typing stats, and automatic backups. This is the primary data store for TekkieStack.

Database name: tekkiestack · Schema version 5 · Stays on your device · Never transmitted

localStorage — Preferences

Purpose: stores a small number of lightweight flags — whether you have accepted this cookie notice (ts_cookie_ok), your device ID used for PIN hashing (ts_device_id), and whether you've dismissed the app install prompt. Contains no personal information about the learner.

Cache API — Offline shell

Purpose: caches the app's HTML, CSS, JavaScript, and fonts so that TekkieStack works with no internet connection after the first load. Cache name: ts-v2. Contains only application files — no user data.

3. Third-Party Storage

TekkieStack loads Google Fonts from fonts.googleapis.com. Google may set its own cache entries in your browser as part of the font delivery. We have no control over Google's caching behaviour. You can disable Google Fonts on this page (see controls below) to prevent any Google network requests.

When the optional online AI Lab is in use, the Anthropic API is called directly from your browser. Anthropic does not set any storage on your device.

4. Your Controls

5. How to Clear Data in Your Browser

You can also clear TekkieStack's storage directly from your browser:

• Chrome / Edge: Settings → Privacy and security → Site settings → View permissions and data stored across sites → Search for this site → Delete
• Safari (Mac): Develop menu → Web Application → IndexedDB; or Settings → Privacy → Manage Website Data
• Safari (iPhone/iPad): Settings → Safari → Advanced → Website Data → Edit → find this site → Delete
• Firefox: Settings → Privacy & Security → Cookies and Site Data → Manage Data → search for this site → Remove