Privacy Policy
Last updated: 21 August 2025
Welcome to NerdLedger.
This Privacy Policy explains how we collect, use, store, and protect your personal information when you use the NerdLedger app or visit our website www.nerdledger.tech. It applies to all users, worldwide.
By using our services, you agree to the terms below.
1. Who We Are
NerdLedger helps you catalogue, value, and manage your collectible collection using AI-powered tools.
NerdLedger Pty Ltd
Email: support@nerdledger.tech
Website: https://www.nerdledger.tech
Registered in Australia
If you’re in the EU or UK, NerdLedger is the “data controller” for the purposes of GDPR.
2. What Information We Collect
We collect the following types of information:
Personal Information
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Name or username
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Email address
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Login credentials (hashed/encrypted)
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IP address and device identifiers
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Region or country
Collectible Data
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Images you upload or scan
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Item details (title, category, condition, price, notes)
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Optional metadata like packaging or grading
Usage Data
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App usage logs
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Error reports and crash diagnostics
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Pages visited, actions taken, and settings used
Third-party Data
We may receive information from:
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eBay (for pricing data)
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Ximilar (for image recognition)
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OpenAI (for AI tagging or analysis)
We do not collect sensitive personal data (e.g., government ID, health, or financial accounts).
3. How We Collect It
We collect data when you:
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Sign up for an account
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Add or update items
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Upload images or scan barcodes
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Interact with features (like AI tools or AR)
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Contact support or fill out a form
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Allow access to third-party integrations (e.g., eBay account)
We also collect anonymised technical data automatically through analytics and diagnostic tools.
4. Why We Collect It (Legal Basis)
We only collect personal data when we have a valid legal reason to do so. These are the primary purposes and legal bases for collecting and processing your data:
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To provide and personalise the NerdLedger app: This is necessary to perform the contract you enter into when you create an account and use the service.
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To improve features and fix bugs: We use anonymised data and logs under our legitimate interest to maintain and enhance the product.
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To respond to your questions or support requests: We process this information because it is necessary to fulfil your request and provide customer service.
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To comply with legal obligations: We may collect and retain certain information as required by law, such as for tax, security, or regulatory purposes.
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To send important service updates: We use legitimate interest to notify you of changes that impact your account or the app. For marketing emails, we will always request your consent.
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To detect and prevent misuse or fraud: This falls under our legitimate interest to protect the integrity and safety of our platform and users.
5. How We Store & Protect Your Data
Your data is stored securely using trusted cloud infrastructure providers in regions such as Australia, the EU, and the US, depending on your location.
We implement strict security measures including:
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HTTPS encryption
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Encrypted password storage
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Access controls and audit logs
Despite this, no system is 100% secure. You use NerdLedger at your own risk.
6. Data Sharing & International Transfers
We may share your data with:
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Technology providers (e.g., AWS, Wix, Supabase)
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Analytics and error-tracking tools
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AI and valuation services (e.g., eBay API, Ximilar, OpenAI)
We only work with processors that comply with GDPR, CCPA, and equivalent frameworks, and data may be transferred internationally under valid safeguards (e.g., Standard Contractual Clauses or similar).
We never sell your personal information.
7. Your Rights
If You Are in the EU/UK (GDPR)
You have the right to:
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Access a copy of your personal data
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Correct inaccurate data
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Delete your account and data (“Right to be Forgotten”)
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Object to certain types of processing
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Port your data to another service
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Lodge a complaint with your local data authority
If You Are in California (CCPA)
You have the right to:
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Know what personal data we collect and why
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Request deletion of your data
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Opt-out of the sale of personal data (we don’t sell it)
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Non-discrimination for exercising these rights
To exercise any of the above, email us at
We’ll respond within 30 days (sooner where required by law).
8. Cookies & Tracking
We use cookies and similar tracking technologies for basic analytics and functionality. You can control cookie preferences through your browser or device settings.
We do not use behavioural advertising cookies at this time.
9. Data Retention
We retain your data as long as your account is active or as needed to provide the service. If you delete your account, we will delete all associated data within 30 days, unless required by law to retain it longer (e.g., fraud prevention or legal claims).
10. Children’s Privacy
NerdLedger is not intended for users under 13. If we learn that a child has created an account, we will delete the data immediately.
11. Changes to This Policy
We may update this policy from time to time. If the changes are significant, we will notify you via email or in-app.
You can always view the latest version at:
12. Contact Us
For any questions, requests, or complaints:
NerdLedger Pty Ltd
Email: support@nerdledger.tech
Website: https://www.nerdledger.tech