Privacy Policy

This Privacy Policy explains how we collect, use, and protect information when you visit our website hosted at https://billkit.app or use the BillKit application ("App").

We are committed to protecting your privacy. BillKit is designed with privacy as a fundamental principle - the App stores all expense data locally on your Mac and transmits no personal information to our servers. Invoice files are sent to third-party AI providers (Claude or OpenAI) for processing when you use AI extraction features.

This Privacy Policy is governed by the laws of England and Wales.

BillKit Application

The BillKit App collects NO personal data and transmits NO information to our servers.

• All expense data is stored locally on your Mac using Core Data
• Expense information, categories, vendors, and invoice files remain entirely on your device
• We cannot access your financial information, invoice data, or expense records

Third-Party AI Processing

When you use BillKit's AI invoice processing features, invoice files are sent to your chosen AI provider for data extraction:

• Anthropic (Claude): When you select Claude as your AI provider, invoice files are sent to Anthropic's API for processing
• OpenAI: When you select OpenAI as your AI provider, invoice files are sent to OpenAI's API for processing

Data sent to AI providers includes:

• The complete invoice file (PDF, image, or document)
• Any text or visual content within the invoice

We do not control how AI providers process, store, or use this data. Each provider has their own privacy policy and data retention practices. Please review:

• Anthropic's privacy policy at anthropic.com/privacy
• OpenAI's privacy policy at openai.com/privacy

You provide your own API key directly to these services. BillKit does not have access to, store, or transmit your API keys beyond secure local storage in your Mac's Keychain.

App Store Subscription (Pro Users)

If you subscribe to BillKit Pro through the Mac App Store, Apple collects and processes:

• Your Apple ID and payment information
• Subscription status and billing history

BillKit may verify your subscription status with the App Store to enable Pro features, but we do not receive or store your payment details, email address, or personal information from Apple.

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Website (https://billkit.app)

When you visit our website, we may collect:

• Technical Information: IP address, browser type, operating system, referring website
• Usage Data: Pages viewed, time spent on site, click patterns (via analytics services)
• Contact Information: Name and email address if you contact us voluntarily
• Cookies: Small files stored on your device for website functionality

BillKit Application

BillKit does not collect or use any of your personal information. All expense tracking occurs locally on your device. When you use AI invoice processing, your invoice files are sent to your chosen third-party AI provider. We do not control or have access to this data.

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Website

We use website information to:

• Improve website performance and user experience
• Respond to your inquiries and support requests
• Understand which content is most valuable to visitors
• Ensure website security and prevent abuse

BillKit Application

• All expense data stored locally on your Mac using Apple's Core Data framework
• Invoice files stored locally in your Mac's file system
• No cloud storage or remote backups by BillKit
• You maintain complete control over all your data
• Data can be exported or deleted at any time
• API keys for AI providers are stored securely in your Mac's Keychain, encrypted by macOS.

When invoice files are sent to AI providers for processing:

• Transmission occurs over secure HTTPS connections
• Data retention is governed by the AI provider's policies, not ours
• We have no access to or control over data sent to AI providers

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Website

• Website data processed in accordance with UK data protection laws
• Reasonable security measures implemented to protect information
• Contact information stored only as long as necessary to respond to inquiries

BillKit Application

BillKit integrates with the following third-party services:

AI Processing Providers

When you process invoices using AI features, BillKit sends invoice files to your chosen provider:

• Anthropic (Claude API): For AI-powered invoice data extraction
• OpenAI API: For AI-powered invoice data extraction

You establish a direct relationship with these providers by obtaining and using your own API key. We do not intermediate, store, or process your data sent to these services.

Mac App Store

Subscription management and payments are handled entirely by Apple through the Mac App Store. Apple's privacy policy governs how your subscription and payment data is processed. We do not sell or share your data with third parties. BillKit itself collects no data from the app.

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Website

Our website uses Fathom Analytics - A privacy-focused analytics service that doesn't use cookies, doesn't track users across websites, and is fully GDPR compliant.

We chose Fathom Analytics specifically because it respects user privacy and doesn't collect personal data.

BillKit Application

BillKit transmits data only in the following circumstances:

• AI Invoice Processing: When you choose to process an invoice, the file is sent directly to your selected AI provider (Claude or OpenAI) via their API
• App Store Subscription Verification: BillKit may verify your Pro subscription status with Apple's App Store

All data transmission uses secure HTTPS connections with TLS encryption. BillKit's servers receive no data from the application.

You have the right to:

• Request information about data we hold about you
• Request correction of inaccurate information
• Request deletion of your information (where legally permissible)
• Withdraw consent for data processing
• Lodge a complaint with the UK Information Commissioner's Office

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BillKit App Rights

Regarding data collected by the App:

• BillKit itself collects no personal data - all rights regarding app data are yours as it's stored locally
• You have complete control over all expense data stored on your device
• You can export or delete all data at any time through the app

For data sent to AI providers when processing invoices:

• Contact Anthropic or OpenAI directly regarding their data practices
• Review their respective privacy policies for data subject rights
• We have no access to or control over data you send to AI providers

For subscription data held by Apple, refer to Apple's privacy policy and contact Apple Support.

BillKit Application

The BillKit App does not use cookies, does not track your usage, and does not collect analytics or telemetry data of any kind.

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BillKit Website

• Our website only uses essential cookies required for basic website functionality.
• The website does NOT use tracking or advertising cookies.
• Fathom Analytics operates without cookies and respects your privacy by not tracking you across websites.

BillKit Application

Local expense data retention is entirely under your control as all data is stored on your device. BillKit transmits no data to our servers, so we retain no application data. For data sent to AI providers during invoice processing, refer to each provider's data retention policy:

• Anthropic's data retention policy
• OpenAI's data retention policy

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Website

• Contact inquiries: Retained for as long as necessary to provide support
• Analytics data: Retained according to the analytics service's retention policy
• Technical logs: Typically retained for up to 12 months for security purposes

BillKit Application

BillKit itself does not transfer your data internationally. However, when you use AI invoice processing features:

• Invoice files are sent to AI providers (Anthropic or OpenAI) whose servers may be located outside the UK
• These providers have their own data protection practices and safeguards
• Review each provider's privacy policy for details on international data transfers

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Website

Website data may be processed by service providers outside the UK. We ensure adequate safeguards are in place for any such transfers.

The BillKit App and website are not directed at children under 13. We do not knowingly collect personal information from children under 13.

We may update this Privacy Policy from time to time. We will post any changes on this page and update the "Last Updated" date. For significant changes, we may provide additional notice.

If you have questions about this Privacy Policy or our privacy practices, please contact us via:

• info@billkit.app
• https://billkit.app/contact
• Lytchett House
  13 Freeland Park
  Wareham Road
  Poole
  BH16 6FA

Our legal basis for processing personal information:

• Legitimate Interests: Website analytics and security
• Consent: When you contact us or opt into communications
• Contract Performance: When necessary to provide requested services

For AI invoice processing, your consent is obtained when you choose to process invoices and select an AI provider. This processing is conducted by third parties (Anthropic, OpenAI) under their own legal basis.

Saturday, 15th November 2025