Privacy Policy

Effective date: June 10, 2026

This Privacy Policy explains how Stub ("we," "us," "the app") handles your information. The short version: most of your data stays on your device, we don't sell anything to anyone, and we only collect what we need to make the app work.

If you have any question that isn't answered here, email service@evdiag.net.

1. What Stub does

Stub is a receipt-scanning and tax-tracking app for self-employed people. You point your camera at a receipt, the app uses AI to read it, and it stores the extracted data so you can use it for tax deductions.

2. Information stored on your device

The following is stored locally on your device only and is never sent to us:

• Receipts you scan (image, vendor, amount, date, items, category, notes)
• Mileage entries you log
• Onboarding state and app settings

You can delete all of this at any time from within the app, or by uninstalling Stub.

3. Information sent to third parties when you use AI features

When you scan a receipt, Stub sends the receipt image to a third-party AI provider (Anthropic) to extract the vendor, amount, items, and tax category. The image is processed and a structured response is returned. Anthropic does not retain your receipt images for training purposes. You can read Anthropic's policy at anthropic.com/privacy.

We do not store the receipt image on our servers. The image leaves your device, is processed by the AI, the structured result returns to your device, and that's the end of it.

4. Subscriptions and payments

When you start a Stub Pro subscription, payment is processed by Apple (App Store) or Google (Play Store). We never see your credit card number or full billing details.

We use RevenueCat to manage subscription states. RevenueCat's privacy policy: revenuecat.com/privacy.

5. Information we do NOT collect

For clarity, we do not collect any of the following:

• Your name (unless you voluntarily enter one in the app)
• Your email (unless you voluntarily contact support)
• Your phone number, contacts, photos outside of receipts you scan, calendar, or other device data
• Your precise location (we request location for mileage tracking, but this is processed locally and never sent off-device)

6. Your rights

You have the right to access, delete, export, or object to processing of your data. To exercise any of these rights, email service@evdiag.net with the subject line "Privacy Request."

7. Children's privacy

Stub is not directed at children under 13 (or under 16 in EEA/UK). We do not knowingly collect data from children.

8. International users

If you are located outside the United States, your data (such as receipt images sent for AI processing) may be transferred to and processed in the United States. By using Stub, you consent to this transfer.

9. Changes to this policy

If we change this policy, we'll update the "Effective date" above. If the change is material, we'll notify you in-app before the change takes effect.

10. Contact

Stub is built and operated by Roman Franta.

Email: service@evdiag.net

By using Stub, you consent to this Privacy Policy.