Privacy Policy

Last updated: October 11, 2026

This policy explains what information Harntung ("Harntung", "we", "us") collects, why, and what you can do about it. It covers the website at www.harntung.com, the Harntung LINE account, and the Harntung app for Clover. Please also read our Terms of Service.

Information we collect

Bills

Everything you add to a bill is stored so everyone with the link can see it. That includes the bill's title, items and prices, the names of the people on it, who paid for what, settlement status, and any payment details people add, such as a PromptPay number or bank account number for receiving money.

Anyone who has a bill's link can see and edit it. Bills aren't listed publicly or shown to search engines, but if a link is shared further, whoever receives it can open the bill. Only share links with people you trust, and only add someone else's payment details with their permission.

Your account

When you create or open a bill, you are given an anonymous account ID so your bills work across visits. If you sign in with Google, our login provider (Firebase Authentication) receives your Google name, email address, and profile photo.

Your profile stores the bills you've recently opened, friends you've saved for reuse (their names and any payment details you saved), and your credits, Harntung Pro status, and scan usage.

Purchases

Payments are handled by Stripe. We receive and store your Stripe customer and subscription IDs and a record of what you bought. We never see or store your full card details.

Receipt photos

When you scan a receipt, the photo is uploaded to our storage on Microsoft Azure and read by Azure's receipt-reading service, which returns the items and prices. We delete the photo as soon as the scan finishes, whether or not it succeeds. We keep a record that a scan happened, without the photo.

LINE

If you message the Harntung LINE account, we read your message to reply, for example to create a bill or show a bill's summary. We don't store your LINE messages or LINE user ID.

Usage, cookies, and local storage

Our hosting providers keep standard server logs, which include IP address, browser type, pages requested, and time. We use Google Analytics to understand how Harntung is used, such as which features are used and whether scans succeed. We don't send names, email addresses, or the contents of your bills to Google Analytics.

We use cookies and your browser's local storage to remember things like your language, banners you've dismissed, and whether you've created a bill before. Google uses cookies for analytics and ads (see Advertising below).

Clover Merchants

If you are a business using Clover and install the Harntung app from the Clover App Market, Clover asks for your permission to give Harntung read-only access to your merchant and order data. This section explains what we do with that access.

We collect and store:

• Your business name, which we use as the title of the bills your guests open
• The access tokens Clover issues to Harntung for your business, which we keep in our database and never share
• The order on a receipt when a guest scans its QR code: the item names and prices, modifiers, discounts, tax, service charge, and total. We copy these into a bill that the guest's group can split.

We read an order only when someone scans the QR code on its receipt. We do not read your other orders, customers, payments, employees, or inventory, and we never create, change, or delete anything in your Clover account. We do not sell this data or use it for advertising.

Bills created from a receipt contain the items ordered and their prices. They do not contain card details or the name of the person who paid. Like any Harntung bill, they can be viewed and edited by anyone who has their link.

When you uninstall the app, we delete your access tokens and stop reading your data. Bills your guests have already created stay available to them. To have your business name and these bills removed, please contact us.

How we use information

• To run Harntung: store and sync bills, and calculate who owes whom
• To scan receipts and to prefill bills from Clover receipts
• To process purchases and provide credits and Harntung Pro
• To understand usage, fix problems, and improve Harntung
• To prevent abuse and fraud
• To show ads
• To reply when you contact us

We don't sell your personal information.

Service providers

We use these companies to run Harntung. They process information for us under their own privacy terms:

• Google: Firebase (login and database), Google Analytics, and Google AdSense and Ad Manager (ads)
• Vercel and Cloudflare: hosting and content delivery
• Microsoft Azure: receipt photo storage and receipt reading
• Stripe: payments
• LINE: our LINE account
• Clover: our Clover app

These providers may process information outside your country, including in the United States.

Advertising

Harntung shows ads from Google. Google and its partners use cookies to show ads based on your visits to Harntung and other websites. You can turn off personalized ads in Google Ads Settings. Learn more in how Google uses information in ads. You can also block or delete cookies in your browser settings.

How long we keep information

• Receipt photos: deleted as soon as the scan finishes
• Bills: kept until their owner deletes them. Bills without an owner (created without signing in) are kept until you ask us to delete them.
• Account and profile: kept until you ask us to delete your account
• Purchase records: kept as long as needed for accounting and legal requirements
• Clover access tokens: deleted when the business uninstalls the app

Your rights

Depending on where you live, including under Thailand's Personal Data Protection Act (PDPA), the EU and UK GDPR, and California's CCPA, you may have the right to:

• Access the personal information we hold about you
• Correct it if it's wrong
• Have it deleted, including your account and your bills
• Object to or restrict how we use it
• Get a copy of it in a portable format
• Withdraw consent where we rely on it
• Complain to your data protection authority

To use any of these rights, email [email protected]. We reply within 30 days and don't charge for it. We may need to confirm the request comes from you, for example from the email address on your account or a bill link you own.

Security

We use encrypted connections (HTTPS), restrict our database so private information can only be read by its owner or our servers, and keep payment details with Stripe. No system is perfectly secure, and bills are, by design, open to anyone with the link.

Children

Harntung is not intended for children under 13, and we don't knowingly collect their personal information. If you believe a child has given us personal information, contact us and we'll delete it.

Changes to this policy

When we update this policy, we'll change the date above and, for important changes, let you know in the app.

Contact

Questions or requests: email [email protected] or message us on Facebook.